{"answers":{"affected":"2 open source packages ship an affected version, including golang and stdlib. It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-27138 in the wild and no public exploit code.","fix":"Upgrade golang to 1.26.1 or later.","what":"CVE-2026-27138 is a medium-severity denial of service vulnerability in Golang Go, published on 6 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-2026-27138 and fix it if it is affected.\n\nWhat it is: CVE-2026-27138 is a medium-severity denial of service vulnerability in Golang Go, published on 6 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-2026-27138 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- golang (Bitnami): affected from 1.26.0-0; fixed in 1.26.1\n- stdlib (Go): affected from 1.26.0-0; fixed in 1.26.1\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-2026-27138/ (Markdown: https://insights.sbomify.com/CVE-2026-27138/index.md)","id":"CVE-2026-27138","markdown":"https://insights.sbomify.com/CVE-2026-27138/index.md","name":"CVE-2026-27138","record":{"aliases":["AZL-79610","AZL-79625","BELL-CVE-2026-27138","BIT-golang-2026-27138","CLEANSTART-2026-DK85212","CLEANSTART-2026-NA69133","CLEANSTART-2026-SJ77898","CLEANSTART-2026-VF48969","DEBIAN-CVE-2026-27138","ECHO-7fcb-2744-be32","GHSA-ph5j-38mg-j6hp","GO-2026-4600","MINI-23w3-3hh9-vh7x","MINI-23wq-r8r5-pp57","MINI-2634-pfqg-6xpj","MINI-26pc-j3xw-9p55","MINI-2869-4qvq-c2px","MINI-2g5g-vpg3-j3m5","MINI-2gfr-w7xw-mxq9","MINI-2jhj-8c84-p3cr","MINI-2jmq-vw7g-6pwj","MINI-2pm9-wf7c-56m9","MINI-2wc6-6q8h-p59h","MINI-3622-2j3w-6fm4","MINI-366m-68qq-238r","MINI-37hr-q4f6-246c","MINI-3c27-862p-7fmp","MINI-3fmx-883v-vmwx","MINI-3gfh-6w4w-4qr3","MINI-3jgw-7jx4-j62v","MINI-3r7h-p85c-xqh2","MINI-3rrq-294g-vmxw","MINI-3v7c-gp57-w8gp","MINI-3vgq-v7pc-q5jr","MINI-3vwv-v5cm-gfjc","MINI-424m-3459-392p","MINI-4823-9qvc-v6ch","MINI-4p7r-554m-r657","MINI-4pgr-h549-2r8q","MINI-4pj2-9mw6-c8q7","MINI-4rg4-q38v-4358","MINI-4v9r-fhp7-8vvx","MINI-52h2-g3xr-wp59","MINI-52w7-5595-c4rc","MINI-5429-fc8g-p6vg","MINI-555j-42wg-7m49","MINI-55wq-wj3h-24fw","MINI-5856-3v9f-g6fv","MINI-5987-mpmc-w49j","MINI-5993-4wcv-82h8","MINI-5h2h-r4pm-rr5g","MINI-5jvr-6gv3-wmgj","MINI-5m3x-4ghw-v6rw","MINI-5m6p-g375-274j","MINI-5mc2-pfqr-xfqg","MINI-5mq5-8f46-m488","MINI-5p4h-vvx5-4p9r","MINI-5rjg-wqpc-vgg9","MINI-5v8c-2qr2-7ffw","MINI-5vx4-w2qc-2g34","MINI-5w8w-55v2-f328","MINI-5x22-4jpc-ch4q","MINI-5xcm-82pc-95pm","MINI-628m-wv44-rmrv","MINI-62r9-gr73-r3p4","MINI-648h-32x7-3cg2","MINI-64mh-2cqv-8wq7","MINI-65gw-fq4m-px8c","MINI-66r5-72qp-2qr7","MINI-676w-43f6-vwm7","MINI-68w3-rf54-q677","MINI-6h58-h2j7-23fq","MINI-6h9f-29g8-xwpr","MINI-6mj2-58rq-p74c","MINI-6p4x-hhpr-w3w2","MINI-6pq5-w8p8-6c2p","MINI-6px3-qffj-jqj5","MINI-6wmv-cjpx-3gm2","MINI-724q-gpxj-f35h","MINI-7272-6j4g-3233","MINI-733c-hwwm-2wfq","MINI-73mc-fvm3-4f85","MINI-75h2-88g8-w56p","MINI-76f6-7c8f-43mf","MINI-7956-jwwr-p6rc","MINI-7c3x-482p-hv2m","MINI-7f35-9g88-vmvv","MINI-7hf6-962g-hgmm","MINI-7hvx-75w8-6mpg","MINI-7mpg-xj8r-733x","MINI-7q28-ww8r-6cr4","MINI-7rjh-vm9f-v2gh","MINI-7rx8-47c5-v7qw","MINI-7v94-65j2-h467","MINI-7wc5-9v2h-759h","MINI-7xvj-4hr2-h843","MINI-83c5-39p5-5g6r","MINI-857x-99r9-6rp6","MINI-858m-99wx-9mrx","MINI-8849-h6xr-g96w","MINI-889x-pqmj-4p56","MINI-8g2v-7g8w-39vv","MINI-8hhg-fx59-hx5m","MINI-8hhj-p8jq-4q8q","MINI-8hwg-7jhv-p32p","MINI-8j25-2wxh-w23h","MINI-8jf5-fr85-95g5","MINI-8jj5-frw9-rjpp","MINI-8jmr-3j4w-hmgj","MINI-8jrj-97hq-3r84","MINI-8px5-g7xp-52w6","MINI-8q2q-hf25-pg77","MINI-8r6r-34vf-w6h7","MINI-8vgr-xw32-4w5f","MINI-8x75-q7mh-v5hg","MINI-8xg6-4wcj-q3cg","MINI-9229-wq4h-hhjg","MINI-94qm-9qqx-q3q5","MINI-9545-jv5r-rq4p","MINI-986v-v3r4-gg64","MINI-99xm-v97p-9f29","MINI-9c39-m78q-mx2r","MINI-9cjf-6qmx-683v","MINI-9f8q-9rv3-g4m8","MINI-9hmh-82c3-62m7","MINI-9hp5-hhfv-j2cc","MINI-9hwr-m6pf-grxv","MINI-9jvf-6fw2-pw77","MINI-9mfj-r2pm-wqrf","MINI-9pr9-g2jr-f89x","MINI-9prr-cx2j-86hq","MINI-9qjv-f5gv-8pmg","MINI-9xp2-c7fx-m3qw","MINI-c2r6-wvp3-4jq5","MINI-c5p8-frxc-mmw5","MINI-c966-43cm-vw36","MINI-cc54-6882-x3ff","MINI-cc7f-xr27-x8hx","MINI-ccmj-f4j6-3x9g","MINI-cfc8-jggm-8rqc","MINI-cg55-7hv4-mhw4","MINI-cg6w-wxg8-54v7","MINI-cgjc-hv5q-7hhq","MINI-chqw-jhc7-765c","MINI-cjff-5wg8-jv7r","MINI-cmvr-6vvm-2r6g","MINI-cqf2-28gq-93w8","MINI-cqq8-c9v7-5qp6","MINI-cwp8-55c2-86r9","MINI-cxcc-pgj6-8f6f","MINI-f23q-34mh-g48h","MINI-f2gp-4m9p-rf5f","MINI-f2m7-rfc8-r9w4","MINI-f43c-gx2h-8r4q","MINI-f7f2-rfwv-qfwq","MINI-f85j-fmp5-r7hh","MINI-f8jr-2q6x-9gm9","MINI-f98r-v3jv-mh5q","MINI-fc2g-qxrw-vm69","MINI-ff66-fx5c-89v6","MINI-fg87-9x65-gv58","MINI-fgfq-g6px-frh9","MINI-fhgf-m533-5mgh","MINI-fjg3-v66h-mpg3","MINI-fm24-pqfc-xm7f","MINI-fmhc-9prm-hj8w","MINI-fpqw-fjwm-mq9j","MINI-fpw2-j4w8-2rx9","MINI-fr84-2cqr-j8vq","MINI-fr89-3x25-86mj","MINI-fx73-5g47-465m","MINI-g5qq-vm4j-8qv5","MINI-g865-q8w6-mmpp","MINI-gccp-v3pr-56m3","MINI-ghhw-m4mj-vmw4","MINI-gqmq-7vqf-5443","MINI-gr2c-rfjc-ff3f","MINI-gw74-892c-qjj4","MINI-gwgw-mh8r-cjrr","MINI-gx9p-jp9h-j35f","MINI-h4h5-rg6j-67c9","MINI-h637-vvqw-wh93","MINI-h6f2-58x2-4fq5","MINI-h6vj-6x79-4wjf","MINI-h7h2-427g-x856","MINI-h8q8-3x9r-f7mx","MINI-hf54-ccxf-8vv8","MINI-hgp4-q24f-4wfr","MINI-hhwf-mqmj-xqhg","MINI-hvw3-76ff-cjx5","MINI-j2h9-q89q-2985","MINI-j38x-rvqm-rrqc","MINI-j3r8-hhv9-xp5j","MINI-j4j2-w6j6-9548","MINI-j56p-7f42-p4wh","MINI-j5cv-7pv9-7x3v","MINI-j5x8-xm5g-26rp","MINI-j9hc-37hr-3x75","MINI-jc38-wg86-8966","MINI-jvm8-2523-v6rf","MINI-m37q-j3f5-pggr","MINI-m3jq-7hqr-w3c9","MINI-m5qf-cfmg-hvfp","MINI-m68v-mhr5-mrrc","MINI-m87v-jr6g-qwqp","MINI-mc35-4fh7-rc92","MINI-mfgp-3jp8-2hh5","MINI-mfhc-9q4h-p724","MINI-mgxr-f53q-fj7x","MINI-mpmq-ghjp-q2rv","MINI-mr22-9664-9qhh","MINI-mwqj-m39f-vqjf","MINI-mx4g-qxjc-hw28","MINI-p462-fcg8-26cc","MINI-p59f-4g5x-mmvm","MINI-p5h5-rf4j-pff3","MINI-p5qv-pgq5-rhgw","MINI-p5r7-pv28-m7h2","MINI-p847-g46j-ww3g","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standard library","requires_auth":"none","summary":"A panic in Go's crypto/x509 package allows attackers to crash applications verifying TLS or X.509 certificates via malformed name constraints.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Go","cpe":[{"product":"go","vendor":"golang"}],"cvss":{"score":5.9,"severity":"medium","source":"cisa-adp","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-295","name":"Improper Certificate Validation"}],"description":"Certificate verification can panic when a certificate in the chain has an empty DNS name and another certificate in the chain has excluded name constraints. This can crash programs that are either directly verifying X.509 certificate chains, or those that use TLS.","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":"Panic in name constraint checking for malformed certificates in crypto/x509","id":"CVE-2026-27138","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Bitnami","product":"golang:go","products":["golang:go"],"type":"denial_of_service","year":"2026"},"n_packages":2,"n_references":4,"next":{"headline":"FileInfo can escape from a Root in os","id":"CVE-2026-27139"},"packages":[{"ecosystem":"Bitnami","fixed":["1.26.1"],"introduced":["1.26.0-0"],"last_affected":[],"package":"golang","purl":"pkg:bitnami/golang","source":"BIT-golang-2026-27138"},{"ecosystem":"Go","fixed":["1.26.1"],"introduced":["1.26.0-0"],"last_affected":[],"package":"stdlib","purl":"pkg:golang/stdlib","source":"GO-2026-4600"}],"prev":{"headline":"Incorrect enforcement of email constraints in crypto/x509","id":"CVE-2026-27137"},"products":["crypto/x509"],"published":"2026-03-06","related":[{"cvss_score":8.1,"headline":"Microsoft Windows CryptoAPI Spoofing","id":"CVE-2020-0601","kev_date_added":"2021-11-03","published":"2020-01-14"},{"cvss_score":9.8,"headline":"Missing bound checks can lead to memory corruption in safe Go in cmd/compile","id":"CVE-2026-27143","kev_date_added":null,"published":"2026-04-08"},{"cvss_score":9.8,"headline":"Unexpected behavior from Is methods for IPv4-mapped IPv6 addresses in net/netip","id":"CVE-2024-24790","kev_date_added":null,"published":"2024-06-05"},{"cvss_score":9.8,"headline":"Arbitrary code execution via go.mod toolchain directive in cmd/go","id":"CVE-2023-39320","kev_date_added":null,"published":"2023-09-08"},{"cvss_score":9.8,"headline":"Improper handling of JavaScript whitespace in html/template","id":"CVE-2023-24540","kev_date_added":null,"published":"2023-05-11"},{"cvss_score":9.8,"headline":"Backticks not treated as string delimiters in html/template","id":"CVE-2023-24538","kev_date_added":null,"published":"2023-04-06"},{"cvss_score":9.8,"headline":"Other in go/golang","id":"CVE-2012-2666","kev_date_added":null,"published":"2021-07-09"}],"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":"Go Vulnerability Database","prefix":"GO"},{"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":["Go standard library"]},"summary":"A panic in Go's crypto/x509 package allows attackers to crash applications verifying TLS or X.509 certificates via malformed name constraints.","url":"https://insights.sbomify.com/CVE-2026-27138/"}