{"answers":{"affected":"3 open source packages ship an affected version, including google.golang.org/grpc. It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-33186 in the wild and no public exploit code.","fix":"Upgrade google.golang.org/grpc to 1.79.3 or later.","what":"CVE-2026-33186 is a critical authentication bypass vulnerability in grpc-go, published on 20 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-33186 and fix it if it is affected.\n\nWhat it is: CVE-2026-33186 is a critical authentication bypass vulnerability in grpc-go, published on 20 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-33186 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- google.golang.org/grpc (Go): affected all versions; fixed in 1.79.3\n- google.golang.org/grpc (Go): affected all versions; fixed in 1.79.3\n- google.golang.org/grpc (Go): affected all versions; fixed in 1.79.3\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-33186/ (Markdown: https://insights.sbomify.com/CVE-2026-33186/index.md)","id":"CVE-2026-33186","markdown":"https://insights.sbomify.com/CVE-2026-33186/index.md","name":"CVE-2026-33186","record":{"aliases":["BELL-CVE-2026-33186","CLEANSTART-2026-DO16074","CLEANSTART-2026-FV50859","CLEANSTART-2026-IC49410","CLEANSTART-2026-IM29286","CLEANSTART-2026-IT57555","CLEANSTART-2026-JX02859","CLEANSTART-2026-LR34746","CLEANSTART-2026-LV42641","CLEANSTART-2026-MX88570","CLEANSTART-2026-NH44106","CLEANSTART-2026-PB13489","CLEANSTART-2026-QF95955","CLEANSTART-2026-RD18147","CLEANSTART-2026-SZ58236","CLEANSTART-2026-XS36799","CLEANSTART-2026-ZH52889","CLSA-2026-1791487723","DEBIAN-CVE-2026-33186","ECHO-7a17-9d1b-7139","GHSA-p77j-4mvh-x3m3","GO-2026-4762","MINI-23ff-8g73-p595","MINI-259x-h6x7-r62v","MINI-25g8-r68j-596h","MINI-25vh-v352-9f6m","MINI-265c-c4xp-xvrw","MINI-269j-9f3g-86mj","MINI-277v-7mww-hwc9","MINI-289c-hh22-v84c","MINI-289p-jqp8-v2w2","MINI-28cw-972x-56vg","MINI-28p6-57xc-f35r","MINI-28pm-fwh3-rqjq","MINI-292v-8p92-q7fp","MINI-297p-cmc4-8h72","MINI-2f29-69pf-8jqj","MINI-2fcm-g5pm-5xch","MINI-2fg9-hffj-f448","MINI-2fxp-969p-6r69","MINI-2g5w-7j8p-vfg8","MINI-2g66-97fm-hvw6","MINI-2gqv-gwr9-wxfh","MINI-2h4h-cxh7-m3g8","MINI-2hgp-5v63-gvj8","MINI-2j2r-3gc4-xj2q","MINI-2j5c-h9p6-g8wc","MINI-2mgc-87vq-65gc","MINI-2qf9-x36r-8ff4","MINI-2qjx-6xr6-9m9p","MINI-2r2g-6rqm-xmxq","MINI-2rvm-3hxv-6gvm","MINI-2vff-hvp7-56m6","MINI-2wj5-wv3r-j2j7","MINI-2x7j-g55v-2q46","MINI-2xxf-29m8-mxgj","MINI-324r-626v-pv33","MINI-325m-c86m-533h","MINI-342x-qm7x-6qj3","MINI-346q-c9hf-vq95","MINI-34j9-6v6r-grf5","MINI-34jm-hfr9-qhmh","MINI-34xf-9g59-5j98","MINI-353g-5q3h-g64h","MINI-36g9-h5ph-8r3x","MINI-36vg-4639-w73g","MINI-3777-qw7w-w2rq","MINI-37pj-vr8x-4h2w","MINI-389j-vv9c-37p5","MINI-398p-pc4f-4xxp","MINI-3c3r-gww6-8pr4","MINI-3cqr-ccqf-fvwq","MINI-3gp8-825h-jr9w","MINI-3h82-qfv5-x8jh","MINI-3hfr-pv27-pv9q","MINI-3hj2-rfwj-833p","MINI-3hj7-5hx3-r3fr","MINI-3j3g-h554-6gg2","MINI-3mqf-gj7c-mp4w","MINI-3pf7-9xwp-p5pp","MINI-3pjm-w3xh-xxpg","MINI-3pjv-2x2f-wqc5","MINI-3pqx-fx5g-8r85","MINI-3q56-7vvh-3vpx","MINI-3q64-2pgg-7v7q","MINI-3q85-25cf-mwjx","MINI-3rh5-2pcv-7x7q","MINI-3vwr-5pmx-wpgf","MINI-3wj3-wv35-g52v","MINI-3wx5-x538-34v2","MINI-3xff-jfg3-4p52","MINI-3xmx-24gx-q32m","MINI-3xx5-wq32-2ww7","MINI-426m-qrvg-v8j2","MINI-429h-2crp-m79j","MINI-429w-v4ww-q4wj","MINI-436h-4c6g-q9xm","MINI-438h-g5hf-38rh","MINI-43fw-qr49-4c69","MINI-46cq-cjhp-3858","MINI-46j2-ph4c-jvrr","MINI-46pm-vfcc-jhg9","MINI-46wf-cfw9-8f7m","MINI-4739-447h-gqvq","MINI-484r-xq47-2428","MINI-48gr-4wr2-9676","MINI-48hv-xx36-wxx3","MINI-48r2-5qph-49gm","MINI-499q-248m-p2fh","MINI-4c62-qww7-2ppg","MINI-4f6q-45g5-x6fw","MINI-4f9x-p5x5-wf9j","MINI-4hhx-3654-m8w2","MINI-4mfr-r4g2-pcgw","MINI-4mr5-4hj7-vhvh","MINI-4p28-4rhv-hhhc","MINI-4q2x-xvpq-586j","MINI-4qc2-4j37-m3g6","MINI-4qrf-r394-w6q3","MINI-4qrp-mwp3-f8ff","MINI-4r5x-fj47-xf67","MINI-4rj4-gjjx-6wc2","MINI-4vfc-34qh-8gx4","MINI-4vqf-m6pp-cmc3","MINI-524f-xh7g-3j88","MINI-53j9-rhjr-vqxq","MINI-53qp-559h-r6g6","MINI-546w-5pv7-388g","MINI-5489-75cm-3429","MINI-549r-78vg-g92w","MINI-54fq-cgp4-52f2","MINI-55hm-5g8w-vhvj","MINI-56cj-j5hx-xcjp","MINI-575v-grgf-69f4","MINI-5763-g9hh-f7fw","MINI-5764-xf4q-jq96","MINI-58x6-qq53-p7mc","MINI-5c77-hppg-wjh9","MINI-5cxq-5mww-9x8r","MINI-5ggf-8wg8-9xq9","MINI-5ghp-3xh4-7x65","MINI-5gp3-r69h-v5vg","MINI-5h5w-8q5g-gfpv","MINI-5hpp-rhm3-w9g8","MINI-5pxm-j2q5-j5m3","MINI-5qm8-m87j-q63g","MINI-5qr2-h4x4-gcwv","MINI-5qwm-gwfr-6cg8","MINI-5v34-hf4g-qfr2","MINI-5v93-2457-x35q","MINI-5vwc-7vv2-6wrh","MINI-5xh9-f2v9-79r6","MINI-5xpf-6993-2cj7","MINI-6247-8pp7-9rpp","MINI-62m8-rgpf-8w98","MINI-64hh-9qf5-6gjh","MINI-64q2-j64f-x2wv","MINI-64v3-p8fm-pfp6","MINI-64wc-c8gj-r7qv","MINI-64xh-97hp-9jc5","MINI-6553-g45j-m7p2","MINI-658m-mqjx-3755","MINI-6687-rc8h-92x6","MINI-675m-9rw3-mm7c","MINI-68c9-wfgq-pr32","MINI-68vg-8gmv-6gv3","MINI-699j-6h63-7ghx","MINI-6ccm-g8v4-vxmg","MINI-6cqg-gp93-mwr2","MINI-6g26-36hh-642c","MINI-6hh7-8vqv-87x4","MINI-6j77-h98g-6mc7","MINI-6jvh-5w6j-hxwf","MINI-6m36-v6g8-6qq8","MINI-6mfc-hrgf-v67q","MINI-6qj9-7wvv-24c9","MINI-6ww5-2x5j-m6m2","MINI-6xqm-c9qr-6fq7","MINI-726j-8x66-p794","MINI-72q9-qrc8-p5r6","MINI-72xq-5jc4-xgg7","MINI-734x-jj5r-pg9f","MINI-75m2-6xq3-wg77","MINI-786q-vr9f-xh28","MINI-78gf-2vx4-vrc3","MINI-78q8-5rq9-4j2x","MINI-794g-r5j9-p8vx","MINI-7973-jrqc-543v","MINI-79fq-mm9m-r4p8","MINI-7c34-w2rr-xc56","MINI-7chm-jh4f-pmvv","MINI-7cjx-rj95-7r2v","MINI-7cxr-33v4-j4h2","MINI-7f6v-jx9p-5hw7","MINI-7fc7-55jr-vqf9","MINI-7fqr-2w54-v2v2","MINI-7gj3-32gj-rcmw","MINI-7gvw-cm4r-hf4m","MINI-7h24-3x6q-58j4","MINI-7h2r-3j3r-p5mj","MINI-7h4p-g23v-mp89","MINI-7hj3-7rmj-q4pv","MINI-7hp3-58q7-23r9","MINI-7j7r-852h-q8jv","MINI-7j9h-3v8f-whvp","MINI-7jm2-556c-hwf8","MINI-7mhh-xc7m-q42f","MINI-7mm3-22jc-fh5q","MINI-7mq6-p8wf-j67x","MINI-7pj5-f7vq-qv8x","MINI-7q7j-jw9f-vfr8","MINI-7r23-572v-qv39","MINI-7x97-mr27-gw22","MINI-7xgj-h2qp-qjmx","MINI-82pw-cg86-5ffh","MINI-83hf-rrfv-9qrv",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6rv-7rv6","MINI-xx7q-x92v-jw4g","MINI-xxvj-q3p6-r8vw","OESA-2026-1866","OESA-2026-1887","RHSA-2026:10107","RHSA-2026:10705","RHSA-2026:10706","RHSA-2026:18068","RHSA-2026:20322","RHSA-2026:20436","RHSA-2026:26997","RHSA-2026:26999","RHSA-2026:27712","RHSA-2026:29079","RHSA-2026:43225","RHSA-2026:56959","ROOT-APP-GOBINARY-CVE-2026-33186","SUSE-SU-2026:1194-1","SUSE-SU-2026:1195-1","SUSE-SU-2026:1197-1","SUSE-SU-2026:1198-1","SUSE-SU-2026:1200-1","SUSE-SU-2026:1208-1","SUSE-SU-2026:1314-1","SUSE-SU-2026:1395-1","SUSE-SU-2026:2101-1","SUSE-SU-2026:21115-1","SUSE-SU-2026:21128-1","SUSE-SU-2026:21210-1","SUSE-SU-2026:21272-1","SUSE-SU-2026:21370-1","SUSE-SU-2026:21490-1","SUSE-SU-2026:21630-1","SUSE-SU-2026:21732-1","SUSE-SU-2026:21803-1","SUSE-SU-2026:21870-1","SUSE-SU-2026:22050-1","SUSE-SU-2026:22051-1","SUSE-SU-2026:22053-1","SUSE-SU-2026:22101-1","SUSE-SU-2026:22141-1","SUSE-SU-2026:2347-1","UBUNTU-CVE-2026-33186","openSUSE-SU-2026:10407-1","openSUSE-SU-2026:10419-1","openSUSE-SU-2026:10420-1","openSUSE-SU-2026:10432-1","openSUSE-SU-2026:10474-1","openSUSE-SU-2026:10484-1","openSUSE-SU-2026:10523-1","openSUSE-SU-2026:10612-1","openSUSE-SU-2026:10690-1","openSUSE-SU-2026:10902-1","openSUSE-SU-2026:11150-1","openSUSE-SU-2026:11402-1","openSUSE-SU-2026:11403-1","openSUSE-SU-2026:11410-1","openSUSE-SU-2026:11970-1","openSUSE-SU-2026:12321-1","openSUSE-SU-2026:20555-1","openSUSE-SU-2026:20584-1","openSUSE-SU-2026:20603-1","openSUSE-SU-2026:20761-1","openSUSE-SU-2026:20856-1","openSUSE-SU-2026:20920-1","openSUSE-SU-2026:20921-1","openSUSE-SU-2026:20924-1"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["security_bypass"],"network_reachable":"yes","non_default_config":true,"product_category":"gRPC-Go library","requires_auth":"none","summary":"Attackers can bypass authorization rules in gRPC-Go servers by sending requests with malformed paths, requiring specific policy configurations to exploit.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"grpc","vendor":"grpc"}],"cvss":{"score":9.1,"severity":"critical","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","version":"3.1"},"cwes":[{"id":"CWE-551","name":"Incorrect Behavior Order: Authorization Before Parsing and Canonicalization"},{"id":"CWE-285","name":"Improper Authorization"}],"description":"gRPC-Go is the Go language implementation of gRPC. Versions prior to 1.79.3 have an authorization bypass resulting from improper input validation of the HTTP/2 `:path` pseudo-header. The gRPC-Go server was too lenient in its routing logic, accepting requests where the `:path` omitted the mandatory leading slash (e.g., `Service/Method` instead of `/Service/Method`). While the server successfully routed these requests to the correct handler, authorization interceptors (including the official `grpc/authz` package) evaluated the raw, non-canonical path string. Consequently, \"deny\" rules defined using canonical paths (starting with `/`) failed to match the incoming request, allowing it to bypass the policy if a fallback \"allow\" rule was present. This affects gRPC-Go servers that use path-based authorization interceptors, such as the official RBAC implementation in `google.golang.org/grpc/authz` or custom interceptors relying on `info.FullMethod` or `grpc.Method(ctx)`; AND that have a security policy contains specific \"deny\" rules for canonical paths but allows other requests by default (a fallback \"allow\" rule). The vulnerability is exploitable by an attacker who can send raw HTTP/2 frames with malformed `:path` headers directly to the gRPC server. The fix in version 1.79.3 ensures that any request with a `:path` that does not start with a leading slash is immediately rejected with a `codes.Unimplemented` error, preventing it from reaching authorization interceptors or handlers with a non-canonical path string. While upgrading is the most secure and recommended path, users can mitigate the vulnerability using one of the following methods: Use a validating interceptor (recommended mitigation); infrastructure-level normalization; and/or policy hardening.","ecosystems":["Go","Red Hat:enterprise_linux:8::appstream","Red Hat:enterprise_linux:9::appstream","Red Hat:enterprise_linux:9::crb","Red Hat:openshift:4.15::el8","Red Hat:openshift:4.15::el9","Red Hat:openshift:4.16::el8","Red Hat:openshift:4.16::el9","Red Hat:openshift:4.18::el8","Red Hat:openshift:4.18::el9","Red Hat:openshift:4.19::el9","Red Hat:rhel_e4s:9.4::appstream","Red Hat:rhel_eus:9.6::appstream","Red Hat:rhel_eus:9.6::crb","SUSE:Linux Enterprise Micro 5.2","SUSE:Linux Enterprise Micro 5.3","SUSE:Linux Enterprise Micro 5.4","SUSE:Linux Enterprise Micro 5.5","SUSE:Linux Enterprise Module for HPC 15 SP7","SUSE:Linux Enterprise Module for Public Cloud 12","SUSE:Linux Enterprise Module for Public Cloud 15 SP4","SUSE:Linux Enterprise Module for Public Cloud 15 SP5","SUSE:Linux Enterprise Module for Public Cloud 15 SP6","SUSE:Linux Enterprise Module for Public Cloud 15 SP7","SUSE:Linux Enterprise Server 15 SP6-LTSS","SUSE:Linux Enterprise Server 16.0","SUSE:Linux Enterprise Server for SAP applications 16.0","SUSE:Linux Micro 6.0","SUSE:Linux Micro 6.1","SUSE:Linux Micro 6.2","openSUSE:Leap 15.6","openSUSE:Leap 16.0","openSUSE:Tumbleweed"],"exploits":{"exploitdb":0,"first_seen":"2026-04-06","github_poc":1,"max_poc_stars":1,"metasploit":0,"nuclei":0,"refs":[{"date":"2026-04-06T17:33:46Z","kind":"github_poc","ref":"https://github.com/JohannesLks/CVE-2026-33186","stars":1,"title":"gRPC-Go RBAC Authorization Policy Bypass via Missing `:path` Slash (Auth Bypass)"}],"tier":"poc_unverified"},"has_fix":true,"headline":"gRPC-Go has an authorization bypass via missing leading slash in :path","id":"CVE-2026-33186","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"auth_bypass","year":"2026"},"n_packages":127,"n_references":1,"next":{"headline":"Further research determined the issue originates from a different product.","id":"CVE-2026-33187"},"packages":[{"ecosystem":"Go","fixed":["1.79.3"],"introduced":["0"],"last_affected":[],"package":"google.golang.org/grpc","purl":null,"source":"GHSA-p77j-4mvh-x3m3"},{"ecosystem":"Go","fixed":["1.79.3"],"introduced":["0"],"last_affected":[],"package":"google.golang.org/grpc","purl":"pkg:golang/google.golang.org/grpc","source":"GHSA-p77j-4mvh-x3m3"},{"ecosystem":"Go","fixed":["1.79.3"],"introduced":["0"],"last_affected":[],"package":"google.golang.org/grpc","purl":"pkg:golang/google.golang.org/grpc","source":"GO-2026-4762"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["1:0.2.5-6.el8_10"],"introduced":["0"],"last_affected":[],"package":"rhc","purl":"pkg:rpm/redhat/rhc","source":"RHSA-2026:10107"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["1:0.2.5-6.el8_10"],"introduced":["0"],"last_affected":[],"package":"rhc-debuginfo","purl":"pkg:rpm/redhat/rhc-debuginfo","source":"RHSA-2026:10107"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["1:0.2.5-6.el8_10"],"introduced":["0"],"last_affected":[],"package":"rhc-debugsource","purl":"pkg:rpm/redhat/rhc-debugsource","source":"RHSA-2026:10107"},{"ecosystem":"Red Hat:enterprise_linux:9::appstream","fixed":["1:0.2.7-4.el9_7"],"introduced":["0"],"last_affected":[],"package":"rhc","purl":"pkg:rpm/redhat/rhc","source":"RHSA-2026:10706"},{"ecosystem":"Red Hat:enterprise_linux:9::appstream","fixed":["1:0.2.7-4.el9_7"],"introduced":["0"],"last_affected":[],"package":"rhc-debuginfo","purl":"pkg:rpm/redhat/rhc-debuginfo","source":"RHSA-2026:10706"},{"ecosystem":"Red Hat:enterprise_linux:9::appstream","fixed":["1:0.2.7-4.el9_7"],"introduced":["0"],"last_affected":[],"package":"rhc-debugsource","purl":"pkg:rpm/redhat/rhc-debugsource","source":"RHSA-2026:10706"},{"ecosystem":"Red Hat:enterprise_linux:9::crb","fixed":["1:0.2.7-4.el9_7"],"introduced":["0"],"last_affected":[],"package":"rhc-debuginfo","purl":"pkg:rpm/redhat/rhc-debuginfo","source":"RHSA-2026:10706"},{"ecosystem":"Red Hat:enterprise_linux:9::crb","fixed":["1:0.2.7-4.el9_7"],"introduced":["0"],"last_affected":[],"package":"rhc-debugsource","purl":"pkg:rpm/redhat/rhc-debugsource","source":"RHSA-2026:10706"},{"ecosystem":"Red Hat:enterprise_linux:9::crb","fixed":["1:0.2.7-4.el9_7"],"introduced":["0"],"last_affected":[],"package":"rhc-devel","purl":"pkg:rpm/redhat/rhc-devel","source":"RHSA-2026:10706"},{"ecosystem":"Red Hat:openshift:4.15::el8","fixed":["0:4.15.0-202606231944.p2.g5638728.assembly.stream.el8"],"introduced":["0"],"last_affected":[],"package":"ose-azure-acr-image-credential-provider","purl":"pkg:rpm/redhat/ose-azure-acr-image-credential-provider","source":"RHSA-2026:43225"},{"ecosystem":"Red Hat:openshift:4.15::el9","fixed":["0:4.15.0-202606231944.p2.g5638728.assembly.stream.el9"],"introduced":["0"],"last_affected":[],"package":"ose-azure-acr-image-credential-provider","purl":"pkg:rpm/redhat/ose-azure-acr-image-credential-provider","source":"RHSA-2026:43225"},{"ecosystem":"Red Hat:openshift:4.16::el8","fixed":["0:4.16.0-202606221818.p2.ga3ebdc0.assembly.stream.el8"],"introduced":["0"],"last_affected":[],"package":"ose-azure-acr-image-credential-provider","purl":"pkg:rpm/redhat/ose-azure-acr-image-credential-provider","source":"RHSA-2026:29079"},{"ecosystem":"Red Hat:openshift:4.16::el9","fixed":["0:4.16.63-202605251227.p0.g1133ac0.assembly.4.16.63.el9"],"introduced":["0"],"last_affected":[],"package":"microshift","purl":"pkg:rpm/redhat/microshift","source":"RHSA-2026:20436"},{"ecosystem":"Red Hat:openshift:4.16::el9","fixed":["0:4.16.63-202605251227.p0.g1133ac0.assembly.4.16.63.el9"],"introduced":["0"],"last_affected":[],"package":"microshift-greenboot","purl":"pkg:rpm/redhat/microshift-greenboot","source":"RHSA-2026:20436"},{"ecosystem":"Red Hat:openshift:4.16::el9","fixed":["0:4.16.63-202605251227.p0.g1133ac0.assembly.4.16.63.el9"],"introduced":["0"],"last_affected":[],"package":"microshift-multus","purl":"pkg:rpm/redhat/microshift-multus","source":"RHSA-2026:20436"},{"ecosystem":"Red Hat:openshift:4.16::el9","fixed":["0:4.16.63-202605251227.p0.g1133ac0.assembly.4.16.63.el9"],"introduced":["0"],"last_affected":[],"package":"microshift-multus-release-info","purl":"pkg:rpm/redhat/microshift-multus-release-info","source":"RHSA-2026:20436"},{"ecosystem":"Red Hat:openshift:4.16::el9","fixed":["0:4.16.63-202605251227.p0.g1133ac0.assembly.4.16.63.el9"],"introduced":["0"],"last_affected":[],"package":"microshift-networking","purl":"pkg:rpm/redhat/microshift-networking","source":"RHSA-2026:20436"},{"ecosystem":"Red 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Hat:openshift:4.16::el9","fixed":["0:4.16.63-202605251227.p0.g1133ac0.assembly.4.16.63.el9"],"introduced":["0"],"last_affected":[],"package":"microshift-selinux","purl":"pkg:rpm/redhat/microshift-selinux","source":"RHSA-2026:20436"},{"ecosystem":"Red Hat:openshift:4.16::el9","fixed":["0:4.16.0-202606221818.p2.ga3ebdc0.assembly.stream.el9"],"introduced":["0"],"last_affected":[],"package":"ose-azure-acr-image-credential-provider","purl":"pkg:rpm/redhat/ose-azure-acr-image-credential-provider","source":"RHSA-2026:29079"},{"ecosystem":"Red Hat:openshift:4.18::el8","fixed":["0:4.18.0-202606160919.p2.g9795abd.assembly.stream.el8"],"introduced":["0"],"last_affected":[],"package":"ose-azure-acr-image-credential-provider","purl":"pkg:rpm/redhat/ose-azure-acr-image-credential-provider","source":"RHSA-2026:26997"},{"ecosystem":"Red Hat:openshift:4.18::el9","fixed":["0:4.18.42-202605181217.p0.gf4eeb37.assembly.4.18.42.el9"],"introduced":["0"],"last_affected":[],"package":"microshift","purl":"pkg:rpm/redhat/microshift","source":"RHSA-2026:18068"},{"ecosystem":"Red Hat:openshift:4.18::el9","fixed":["0:4.18.42-202605181217.p0.gf4eeb37.assembly.4.18.42.el9"],"introduced":["0"],"last_affected":[],"package":"microshift-gateway-api","purl":"pkg:rpm/redhat/microshift-gateway-api","source":"RHSA-2026:18068"},{"ecosystem":"Red Hat:openshift:4.18::el9","fixed":["0:4.18.42-202605181217.p0.gf4eeb37.assembly.4.18.42.el9"],"introduced":["0"],"last_affected":[],"package":"microshift-gateway-api-release-info","purl":"pkg:rpm/redhat/microshift-gateway-api-release-info","source":"RHSA-2026:18068"},{"ecosystem":"Red Hat:openshift:4.18::el9","fixed":["0:4.18.42-202605181217.p0.gf4eeb37.assembly.4.18.42.el9"],"introduced":["0"],"last_affected":[],"package":"microshift-greenboot","purl":"pkg:rpm/redhat/microshift-greenboot","source":"RHSA-2026:18068"},{"ecosystem":"Red Hat:openshift:4.18::el9","fixed":["0:4.18.42-202605181217.p0.gf4eeb37.assembly.4.18.42.el9"],"introduced":["0"],"last_affected":[],"package":"microshift-low-latency","purl":"pkg:rpm/redhat/microshift-low-latency","source":"RHSA-2026:18068"},{"ecosystem":"Red Hat:openshift:4.18::el9","fixed":["0:4.18.42-202605181217.p0.gf4eeb37.assembly.4.18.42.el9"],"introduced":["0"],"last_affected":[],"package":"microshift-multus","purl":"pkg:rpm/redhat/microshift-multus","source":"RHSA-2026:18068"},{"ecosystem":"Red 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Hat:openshift:4.18::el9","fixed":["0:4.18.0-202606160919.p2.g9795abd.assembly.stream.el9"],"introduced":["0"],"last_affected":[],"package":"ose-azure-acr-image-credential-provider","purl":"pkg:rpm/redhat/ose-azure-acr-image-credential-provider","source":"RHSA-2026:26997"},{"ecosystem":"Red Hat:openshift:4.19::el9","fixed":["0:4.19.32-202605212036.p0.g27d51c3.assembly.4.19.32.el9"],"introduced":["0"],"last_affected":[],"package":"microshift","purl":"pkg:rpm/redhat/microshift","source":"RHSA-2026:20322"}],"prev":{"headline":"Discourse: Group SMTP test endpoint susceptible to SSRF","id":"CVE-2026-33185"},"products":["grpc-go"],"published":"2026-03-20","related":[{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2017-9431","kev_date_added":null,"published":"2017-06-05"},{"cvss_score":9.8,"headline":"Use after free in n/a","id":"CVE-2017-8359","kev_date_added":null,"published":"2017-04-30"},{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2017-7860","kev_date_added":null,"published":"2017-04-14"},{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2017-7861","kev_date_added":null,"published":"2017-04-14"},{"cvss_score":7.5,"headline":"Denial of Service in gRPC Core","id":"CVE-2023-4785","kev_date_added":null,"published":"2023-09-13"},{"cvss_score":7.5,"headline":"Denial-of-Service in gRPC","id":"CVE-2023-33953","kev_date_added":null,"published":"2023-08-09"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CC BY 4.0","name":"Go Vulnerability Database","prefix":"GO"},{"class":"attribution","licence":"CC BY 4.0","name":"Red Hat","prefix":"RHSA"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-09-18","vendors":["grpc"]},"summary":"Attackers can bypass authorization rules in gRPC-Go servers by sending requests with malformed paths, requiring specific policy configurations to exploit.","url":"https://insights.sbomify.com/CVE-2026-33186/"}