{"id":"CVE-2021-29652","aliases":["GHSA-fv82-r8qv-ch4v","GO-2022-0827"],"url":"https://o3.security/vulnerability/CVE-2021-29652","summary":"pomerium_signature is not verified in middleware in github.com/pomerium/pomerium","details":"### Impact\nSome API endpoints under /.pomerium/ do not verify parameters with pomerium_signature. This could allow modifying parameters intended to be trusted to Pomerium. \n\nThe issue mainly affects routes responsible for sign in/out, but does not introduce an authentication bypass.\n\n### Specific Go Packages Affected\ngithub.com/pomerium/pomerium/authenticate\n\n### Patches\nPatched in v0.13.4\n\n### For more information\nIf you have any questions or comments about this advisory\n* Open an issue in [pomerium](http://github.com/pomerium/pomerium)\n* Email us at [security@pomerium.com](mailto:security@pomerium.com)","published":"2021-04-02T14:15:13.723Z","modified":"2026-07-09T11:23:54.995857Z","cvss":{"score":6.1,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"Go","name":"github.com/pomerium/pomerium","fixedVersion":"0.13.4"}],"fix":{"url":"https://github.com/pomerium/pomerium/pull/2048","label":"pomerium/pomerium#2048"},"references":[{"type":"ADVISORY","url":"https://github.com/pomerium/pomerium/security/advisories/GHSA-fv82-r8qv-ch4v"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2021-29652"},{"type":"WEB","url":"https://github.com/pomerium/pomerium/pull/2048"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-09T11:23:54.995857Z"}}