{"id":"CVE-2023-29013","aliases":["GHSA-7hj9-rv74-5g92"],"title":"Traefik HTTP header parsing could cause a denial of service ","summary":"Traefik HTTP header parsing could cause a denial of service ","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","vendor":"traefik","product":"github.com/traefik/traefik/v2","ecosystem":"go","affected":["github.com/traefik/traefik/v2 < 2.9.10","github.com/traefik/traefik/v2 >= 2.10.0-rc1, < 2.10.0-rc2"],"patched":["github.com/traefik/traefik/v2 2.9.10","github.com/traefik/traefik/v2 2.10.0-rc2"],"published":"2023-04-11","updated":"2026-09-10","sourceUpdated":"2026-09-10T03:49:53.644478029Z","source":"OSV","sourceUrl":"https://osv.dev/vulnerability/GHSA-7hj9-rv74-5g92","references":[{"url":"https://github.com/traefik/traefik/security/advisories/GHSA-7hj9-rv74-5g92"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-29013"},{"url":"https://github.com/traefik/traefik/commit/4ed3964b3586565519249bbdc55eb1b961c08c49"},{"url":"https://github.com/advisories/GHSA-8v5j-pwr7-w5f8"},{"url":"https://github.com/traefik/traefik"},{"url":"https://github.com/traefik/traefik/releases/tag/v2.10.0-rc2"},{"url":"https://github.com/traefik/traefik/releases/tag/v2.9.10"},{"url":"https://groups.google.com/g/golang-announce/c/Xdv6JL9ENs8/m/OV40vnafAwAJ"},{"url":"https://security.netapp.com/advisory/ntap-20230517-0008"}],"tags":["osv","go"],"epss":0.01085,"epssPercentile":0.63329,"ingestedAt":"2026-09-12T03:13:01.764Z","slug":"CVE-2023-29013","body":"## Overview\n\n### Impact\n\nThere is a vulnerability in [Go when parsing the HTTP headers](https://groups.google.com/g/golang-announce/c/Xdv6JL9ENs8/m/OV40vnafAwAJ), which impacts Traefik.\nHTTP header parsing could allocate substantially more memory than required to hold the parsed headers. This behavior could be exploited to cause a denial of service.\n\n### References\n\n- [CVE-2023-24534](https://www.cve.org/CVERecord?id=CVE-2023-24534)\n\n### Patches\n- https://github.com/traefik/traefik/releases/tag/v2.9.10\n- https://github.com/traefik/traefik/releases/tag/v2.10.0-rc2\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).\n\n## Affected packages\n\n- `github.com/traefik/traefik/v2 < 2.9.10`\n- `github.com/traefik/traefik/v2 >= 2.10.0-rc1, < 2.10.0-rc2`\n\n## Remediation\n\nUpgrade to a patched release:\n\n- `github.com/traefik/traefik/v2 2.9.10`\n- `github.com/traefik/traefik/v2 2.10.0-rc2`","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0.2,"exploitation":0,"ransomware":0},"changes":[]}