{"id":"CVE-2023-29013","aliases":["ALPINE-CVE-2023-29013","EUVD-2023-1226","GHSA-7hj9-rv74-5g92","openSUSE-SU-2024:13007-1","openSUSE-SU-2024:14076-1"],"status":"published","title":"HTTP header parsing could cause a deny of service","description":"Traefik (pronounced traffic) is a modern HTTP reverse proxy and load balancer for deploying microservices. There is a vulnerability in Go when parsing the HTTP headers, which impacts Traefik. HTTP 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. This issue has been patched in versions 2.9.10 and 2.10.0-rc2.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.01085,"percentile":0.65529,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-400"],"published":"2023-04-11T20:59:22Z","modified":"2026-11-03T06:32:58Z","fixes":[{"ecosystem":"Go","package":"github.com/traefik/traefik/v2","fixed_in":["2.9.10","2.10.0-rc2"],"sources":["ghsa","osv"]},{"ecosystem":"Alpine:v3.18","package":"traefik","fixed_in":["2.9.10-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.19","package":"traefik","fixed_in":["2.9.10-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.20","package":"traefik","fixed_in":["2.9.10-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.21","package":"traefik","fixed_in":["2.9.10-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.22","package":"traefik","fixed_in":["2.9.10-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.23","package":"traefik","fixed_in":["2.9.10-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.24","package":"traefik","fixed_in":["2.9.10-r0"],"sources":["osv"]}],"affected":[{"source":"ghsa","ecosystem":"Go","package":"github.com/traefik/traefik/v2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.9.10"}]}]},{"source":"ghsa","ecosystem":"Go","package":"github.com/traefik/traefik/v2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.10.0-rc1"},{"last_affected":"2.10.0-rc1"},{"fixed":"2.10.0-rc2"}]}],"versions":["2.10.0-rc1"]},{"source":"osv","ecosystem":"Alpine:v3.18","package":"traefik","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.9.10-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.19","package":"traefik","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.9.10-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.20","package":"traefik","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.9.10-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.21","package":"traefik","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.9.10-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.22","package":"traefik","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.9.10-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.23","package":"traefik","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.9.10-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.24","package":"traefik","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.9.10-r0"}]}]},{"source":"osv","ecosystem":"Go","package":"github.com/traefik/traefik/v2","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"2.9.10"}]}]},{"source":"osv","ecosystem":"Go","package":"github.com/traefik/traefik/v2","ranges":[{"type":"SEMVER","events":[{"introduced":"2.10.0-rc1"},{"fixed":"2.10.0-rc2"}]}],"versions":["2.10.0-rc1"]},{"source":"osv","ecosystem":"openSUSE:Tumbleweed","package":"traefik","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.10.1-1.1"}]}],"bundled":3},{"source":"osv","ecosystem":"openSUSE:Tumbleweed","package":"traefik2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.11.5-1.1"}]}],"bundled":15}],"products":[{"vendor":"traefik","product":"traefik"}],"references":[{"url":"https://github.com/traefik/traefik/security/advisories/GHSA-7hj9-rv74-5g92","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory","advisory","web"]},{"url":"https://github.com/traefik/traefik/commit/4ed3964b3586565519249bbdc55eb1b961c08c49","tags":["x_refsource_MISC","x_transferred","Patch","fix","web"]},{"url":"https://github.com/traefik/traefik/releases/tag/v2.10.0-rc2","tags":["x_refsource_MISC","x_transferred","Release Notes","web"]},{"url":"https://github.com/traefik/traefik/releases/tag/v2.9.10","tags":["x_refsource_MISC","x_transferred","Release Notes","web"]},{"url":"https://security.netapp.com/advisory/ntap-20230517-0008/","tags":["x_transferred","Third Party Advisory","advisory"]},{"url":"https://github.com/advisories/GHSA-8v5j-pwr7-w5f8","tags":["advisory"]},{"url":"https://groups.google.com/g/golang-announce/c/Xdv6JL9ENs8/m/OV40vnafAwAJ","tags":["web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-29013","tags":["advisory"]},{"url":"https://security.netapp.com/advisory/ntap-20230517-0008","tags":["web"]},{"url":"https://github.com/advisories/GHSA-7hj9-rv74-5g92"},{"url":"https://security.alpinelinux.org/vuln/CVE-2023-29013","tags":["advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/29xxx/CVE-2023-29013.json","tags":["advisory"]},{"url":"https://github.com/traefik/traefik","tags":["package"]},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2022-41724","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2023-24534","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2023-29013","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2022-23469","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2022-41717","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2022-46153","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2023-39325","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2023-45283","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2023-45284","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2023-45288","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2023-47106","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2023-47124","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2023-47633","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2024-24788","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2024-28869","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2023-29013","title":"HTTP header parsing could cause a deny of service","description":"Traefik (pronounced traffic) is a modern HTTP reverse proxy and load balancer for deploying microservices. There is a vulnerability in Go when parsing the HTTP headers, which impacts Traefik. HTTP 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. This issue has been patched in versions 2.9.10 and 2.10.0-rc2.","status":"published","published":"2023-04-14T18:15:12.622Z","modified":"2025-02-13T16:48:58.656Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T14:35:28.643185Z"}],"euvd":[{"id":"EUVD-2023-1226","description":"Traefik (pronounced traffic) is a modern HTTP reverse proxy and load balancer for deploying microservices. There is a vulnerability in Go when parsing the HTTP headers, which impacts Traefik. HTTP 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. This issue has been patched in versions 2.9.10 and 2.10.0-rc2.","status":"published","published":"2023-04-14T18:15:12Z","modified":"2025-02-13T16:48:58Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-03T00:03:50.947767Z"}],"ghsa":[{"id":"GHSA-7hj9-rv74-5g92","title":"Traefik HTTP header parsing could cause a denial of service ","description":"### 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).","status":"published","published":"2023-04-11T20:59:22Z","modified":"2025-02-13T18:54:00Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T14:38:30.754382Z"}],"nvd":[{"id":"CVE-2023-29013","description":"Traefik (pronounced traffic) is a modern HTTP reverse proxy and load balancer for deploying microservices. There is a vulnerability in Go when parsing the HTTP headers, which impacts Traefik. HTTP 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. This issue has been patched in versions 2.9.10 and 2.10.0-rc2.","status":"published","published":"2023-04-14T19:15:09.127Z","modified":"2026-06-17T05:49:11.4Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"secondary"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T14:07:55.652109Z"}],"osv":[{"id":"ALPINE-CVE-2023-29013","description":"Traefik (pronounced traffic) is a modern HTTP reverse proxy and load balancer for deploying microservices. There is a vulnerability in Go when parsing the HTTP headers, which impacts Traefik. HTTP 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. This issue has been patched in versions 2.9.10 and 2.10.0-rc2.","status":"published","published":"2023-04-14T19:15:09.127Z","modified":"2026-11-03T06:32:58.945497376Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-03T07:16:09.603409Z"},{"id":"CVE-2023-29013","title":"HTTP header parsing could cause a deny of service","description":"Traefik (pronounced traffic) is a modern HTTP reverse proxy and load balancer for deploying microservices. There is a vulnerability in Go when parsing the HTTP headers, which impacts Traefik. HTTP 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. This issue has been patched in versions 2.9.10 and 2.10.0-rc2.","status":"published","published":"2023-04-14T18:15:12.622Z","modified":"2026-10-28T02:31:09.033014534Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T15:44:31.468318Z"},{"id":"GHSA-7hj9-rv74-5g92","title":"Traefik HTTP header parsing could cause a denial of service ","description":"### 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).","status":"published","published":"2023-04-11T20:59:22Z","modified":"2026-09-10T03:49:53.644478029Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T15:46:41.002603Z"},{"id":"openSUSE-SU-2024:13007-1","title":"traefik-2.10.1-1.1 on GA media","description":"These are all security issues fixed in the traefik-2.10.1-1.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2024-06-15T00:00:00Z","modified":"2026-02-04T03:36:12.084423Z","updated_at":"2026-11-02T16:58:36.025801Z"},{"id":"openSUSE-SU-2024:14076-1","title":"traefik2-2.11.5-1.1 on GA media","description":"These are all security issues fixed in the traefik2-2.11.5-1.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2024-06-24T00:00:00Z","modified":"2026-02-04T03:57:47.885126Z","updated_at":"2026-11-02T16:58:36.662953Z"}]}}