{"answers":{"affected":"9 open source packages ship an affected version, including github.com/envoyproxy/envoy and envoy. It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-26310 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2026-26310 is a medium-severity denial of service vulnerability in Envoyproxy Envoy, published on 10 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-2026-26310 and fix it if it is affected.\n\nWhat it is: CVE-2026-26310 is a medium-severity denial of service vulnerability in Envoyproxy Envoy, published on 10 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-2026-26310 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- github.com/envoyproxy/envoy (Go): affected all versions; no fix listed\n- github.com/envoyproxy/envoy (Go): affected all versions; no fix listed\n- github.com/envoyproxy/envoy (Go): affected all versions up to 1.34.12; no fix listed\n- github.com/envoyproxy/envoy (Go): affected all versions up to 1.34.12; no fix listed\n- github.com/envoyproxy/envoy (Go): affected from 1.35.0 up to 1.35.8; no fix listed\n- github.com/envoyproxy/envoy (Go): affected from 1.35.0 up to 1.35.8; no fix listed\n- github.com/envoyproxy/envoy (Go): affected from 1.36.0 up to 1.36.4; no fix listed\n- github.com/envoyproxy/envoy (Go): affected from 1.36.0 up to 1.36.4; no fix listed\n- envoy (Bitnami): affected all versions; fixed in 1.34.13, 1.35.9, 1.36.5, 1.37.1\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-2026-26310/ (Markdown: https://insights.sbomify.com/CVE-2026-26310/index.md)","id":"CVE-2026-26310","markdown":"https://insights.sbomify.com/CVE-2026-26310/index.md","name":"CVE-2026-26310","record":{"aliases":["BIT-envoy-2026-26310","GHSA-3cw6-2j68-868p"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Envoy proxy","requires_auth":"none","summary":"Attackers can crash the Envoy proxy by sending scoped IPv6 addresses during DNS resolution, causing a denial of service.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"envoy","vendor":"envoyproxy"}],"cvss":{"score":5.9,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-20","name":"Improper Input Validation"}],"description":"Envoy is a high-performance edge/middle/service proxy. Prior to 1.37.1, 1.36.5, 1.35.8, and 1.34.13, calling Utility::getAddressWithPort with a scoped IPv6 addresses causes a crash. This utility is called in the data plane from the original_src filter and the dns filter. This vulnerability is fixed in 1.37.1, 1.36.5, 1.35.8, and 1.34.13.","ecosystems":["Bitnami","Go"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Crash for scoped ip address in Envoy during DNS","id":"CVE-2026-26310","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Bitnami","product":"envoyproxy:envoy","products":["envoyproxy:envoy"],"type":"denial_of_service","year":"2026"},"n_packages":9,"n_references":1,"next":{"headline":"Envoy HTTP: filter chain execution on reset streams causing UAF crash","id":"CVE-2026-26311"},"packages":[{"ecosystem":"Bitnami","fixed":["1.34.13","1.35.9","1.36.5","1.37.1"],"introduced":["0","1.35.0","1.36.0","1.37.0"],"last_affected":[],"package":"envoy","purl":"pkg:bitnami/envoy","source":"BIT-envoy-2026-26310"},{"ecosystem":"Go","fixed":[],"introduced":[],"last_affected":[],"package":"github.com/envoyproxy/envoy","purl":null,"source":"GHSA-3cw6-2j68-868p"},{"ecosystem":"Go","fixed":[],"introduced":[],"last_affected":[],"package":"github.com/envoyproxy/envoy","purl":"pkg:golang/github.com/envoyproxy/envoy","source":"GHSA-3cw6-2j68-868p"},{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":["1.34.12"],"package":"github.com/envoyproxy/envoy","purl":null,"source":"GHSA-3cw6-2j68-868p"},{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":["1.34.12"],"package":"github.com/envoyproxy/envoy","purl":"pkg:golang/github.com/envoyproxy/envoy","source":"GHSA-3cw6-2j68-868p"},{"ecosystem":"Go","fixed":[],"introduced":["1.35.0"],"last_affected":["1.35.8"],"package":"github.com/envoyproxy/envoy","purl":null,"source":"GHSA-3cw6-2j68-868p"},{"ecosystem":"Go","fixed":[],"introduced":["1.35.0"],"last_affected":["1.35.8"],"package":"github.com/envoyproxy/envoy","purl":"pkg:golang/github.com/envoyproxy/envoy","source":"GHSA-3cw6-2j68-868p"},{"ecosystem":"Go","fixed":[],"introduced":["1.36.0"],"last_affected":["1.36.4"],"package":"github.com/envoyproxy/envoy","purl":null,"source":"GHSA-3cw6-2j68-868p"},{"ecosystem":"Go","fixed":[],"introduced":["1.36.0"],"last_affected":["1.36.4"],"package":"github.com/envoyproxy/envoy","purl":"pkg:golang/github.com/envoyproxy/envoy","source":"GHSA-3cw6-2j68-868p"}],"prev":{"headline":"Envoy has an off-by-one write in JsonEscaper::escapeString()","id":"CVE-2026-26309"},"products":["envoy"],"published":"2026-03-10","related":[{"cvss_score":10,"headline":"Trivial authentication bypass in Envoy","id":"CVE-2022-29226","kev_date_added":null,"published":"2022-06-09"},{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2019-18801","kev_date_added":null,"published":"2019-12-13"},{"cvss_score":9.8,"headline":"Security feature bypass in n/a","id":"CVE-2019-18802","kev_date_added":null,"published":"2019-12-13"},{"cvss_score":8.8,"headline":"Information disclosure in n/a","id":"CVE-2020-35470","kev_date_added":null,"published":"2020-12-15"},{"cvss_score":8.6,"headline":"Envoy ext auth can be bypassed when Proxy protocol filter sets invalid UTF-8 metadata","id":"CVE-2024-23324","kev_date_added":null,"published":"2024-02-09"},{"cvss_score":8.6,"headline":"Envoy vulnerable to OAuth2 credentials exploit with permanent validity","id":"CVE-2023-35941","kev_date_added":null,"published":"2023-07-25"},{"cvss_score":8.6,"headline":"Incorrect handling of H2 GOAWAY + SETTINGS frames","id":"CVE-2021-39162","kev_date_added":null,"published":"2021-09-09"}],"sources":[{"class":"attribution","licence":"Apache-2.0","name":"Bitnami","prefix":"BIT"},{"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":"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)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-03-10","vendors":["envoyproxy"]},"summary":"Attackers can crash the Envoy proxy by sending scoped IPv6 addresses during DNS resolution, causing a denial of service.","url":"https://insights.sbomify.com/CVE-2026-26310/"}