{"answers":{"affected":"9 open source packages ship an affected version, including github.com/traefik/traefik, github.com/traefik/traefik/v2 and github.com/traefik/traefik/v3.","exploited":"There is no known exploitation of GHSA-gv8r-9rw9-9697 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"GHSA-gv8r-9rw9-9697 is an authentication bypass vulnerability in github.com/traefik/traefik, published on 20 Feb 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for GHSA-gv8r-9rw9-9697 and fix it if it is affected.\n\nWhat it is: GHSA-gv8r-9rw9-9697 is an authentication bypass vulnerability in github.com/traefik/traefik, published on 20 Feb 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 GHSA-gv8r-9rw9-9697 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- github.com/traefik/traefik (Go): affected all versions; no fix listed\n- github.com/traefik/traefik (Go): affected all versions up to 1.7.34; no fix listed\n- github.com/traefik/traefik (Go): affected all versions up to 1.7.34; no fix listed\n- github.com/traefik/traefik/v2 (Go): affected all versions; fixed in 2.11.37\n- github.com/traefik/traefik/v2 (Go): affected all versions; fixed in 2.11.37\n- github.com/traefik/traefik/v2 (Go): affected all versions; fixed in 2.11.37\n- github.com/traefik/traefik/v3 (Go): affected all versions; fixed in 3.6.8\n- github.com/traefik/traefik/v3 (Go): affected all versions; fixed in 3.6.8\n- github.com/traefik/traefik/v3 (Go): affected all versions; fixed in 3.6.8\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/GHSA-gv8r-9rw9-9697/ (Markdown: https://insights.sbomify.com/GHSA-gv8r-9rw9-9697/index.md)","id":"GHSA-gv8r-9rw9-9697","markdown":"https://insights.sbomify.com/GHSA-gv8r-9rw9-9697/index.md","name":"GHSA-gv8r-9rw9-9697","record":{"aliases":["GO-2026-4530"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["security_bypass"],"network_reachable":"yes","non_default_config":true,"product_category":"Reverse proxy server","requires_auth":"none","summary":"Traefik allows bypassing TLS ClientAuth on HTTP/3, enabling unauthorized access when mutual TLS is configured.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"### Summary\n\nThere is a potential vulnerability in Traefik managing HTTP/3 connections.\n\nMore details in the [CVE-2025-68121](https://nvd.nist.gov/vuln/detail/CVE-2025-68121).\n\n## Patches\n\n- https://github.com/traefik/traefik/releases/tag/v2.11.37\n- https://github.com/traefik/traefik/releases/tag/v3.6.8\n\n## Workarounds\n\nNo workaround\n\n## For more information\n\nIf you have any questions or comments about this advisory, please [open an issue](https://github.com/traefik/traefik/issues).","ecosystems":["Go"],"exploits":{"exploitdb":null,"first_seen":null,"github_poc":null,"max_poc_stars":null,"metasploit":null,"nuclei":null,"refs":[],"tier":null},"has_fix":true,"headline":"Traefik affected by TLS ClientAuth Bypass on HTTP/3","id":"GHSA-gv8r-9rw9-9697","indexable":true,"kev":null,"kind":"advisory","links":{"ecosystem":"Go","product":null,"products":[],"type":"auth_bypass","year":"2026"},"n_packages":9,"n_references":null,"packages":[{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":[],"package":"github.com/traefik/traefik","purl":"pkg:golang/github.com/traefik/traefik","source":"GO-2026-4530"},{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":["1.7.34"],"package":"github.com/traefik/traefik","purl":null,"source":"GHSA-gv8r-9rw9-9697"},{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":["1.7.34"],"package":"github.com/traefik/traefik","purl":"pkg:golang/github.com/traefik/traefik","source":"GHSA-gv8r-9rw9-9697"},{"ecosystem":"Go","fixed":["2.11.37"],"introduced":["0"],"last_affected":[],"package":"github.com/traefik/traefik/v2","purl":null,"source":"GHSA-gv8r-9rw9-9697"},{"ecosystem":"Go","fixed":["2.11.37"],"introduced":["0"],"last_affected":[],"package":"github.com/traefik/traefik/v2","purl":"pkg:golang/github.com/traefik/traefik/v2","source":"GHSA-gv8r-9rw9-9697"},{"ecosystem":"Go","fixed":["2.11.37"],"introduced":["0"],"last_affected":[],"package":"github.com/traefik/traefik/v2","purl":"pkg:golang/github.com/traefik/traefik/v2","source":"GO-2026-4530"},{"ecosystem":"Go","fixed":["3.6.8"],"introduced":["0"],"last_affected":[],"package":"github.com/traefik/traefik/v3","purl":null,"source":"GHSA-gv8r-9rw9-9697"},{"ecosystem":"Go","fixed":["3.6.8"],"introduced":["0"],"last_affected":[],"package":"github.com/traefik/traefik/v3","purl":"pkg:golang/github.com/traefik/traefik/v3","source":"GHSA-gv8r-9rw9-9697"},{"ecosystem":"Go","fixed":["3.6.8"],"introduced":["0"],"last_affected":[],"package":"github.com/traefik/traefik/v3","purl":"pkg:golang/github.com/traefik/traefik/v3","source":"GO-2026-4530"}],"products":null,"published":"2026-02-20","related":[],"sources":[{"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"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":null,"updated":null,"vendors":null},"summary":"Traefik allows bypassing TLS ClientAuth on HTTP/3, enabling unauthorized access when mutual TLS is configured.","url":"https://insights.sbomify.com/GHSA-gv8r-9rw9-9697/"}