{"id":"CVE-2021-29652","aliases":["EUVD-2021-1066","GHSA-fv82-r8qv-ch4v","GO-2022-0827"],"status":"published","title":"pomerium_signature is not verified in middleware in github.com/pomerium/pomerium","description":"Pomerium from version 0.10.0-0.13.3 has an Open Redirect in the user sign-in/out process","severity":{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.00658,"percentile":0.5178,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-601"],"published":"2021-04-02T13:58:34Z","modified":"2026-10-20T10:54:38Z","fixes":[{"ecosystem":"Go","package":"github.com/pomerium/pomerium","fixed_in":["0.13.4"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Go","package":"github.com/pomerium/pomerium","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0.10.0"},{"fixed":"0.13.4"}]}]},{"source":"osv","ecosystem":"Go","package":"github.com/pomerium/pomerium","ranges":[{"type":"SEMVER","events":[{"introduced":"0.10.0"},{"fixed":"0.13.4"}]}]},{"source":"osv","ecosystem":"Go","package":"github.com/pomerium/pomerium","ranges":[{"type":"SEMVER","events":[{"introduced":"0.10.0"},{"fixed":"0.13.4"}]}]}],"products":[{"vendor":"pomerium","product":"pomerium"}],"references":[{"url":"https://github.com/pomerium/pomerium/security/advisories/GHSA-fv82-r8qv-ch4v","tags":["x_refsource_CONFIRM","x_transferred","Third Party Advisory","advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-29652","tags":["advisory"]},{"url":"https://github.com/pomerium/pomerium/pull/2048","tags":["web","fix"]},{"url":"https://github.com/advisories/GHSA-fv82-r8qv-ch4v"}],"sources":{"cve":[{"id":"CVE-2021-29652","description":"Pomerium from version 0.10.0-0.13.3 has an Open Redirect in the user sign-in/out process","status":"published","published":"2021-04-02T13:58:34Z","modified":"2024-08-03T22:11:06.37Z","updated_at":"2026-11-02T14:33:06.658806Z"}],"euvd":[{"id":"EUVD-2021-1066","description":"Pomerium from version 0.10.0-0.13.3 has an Open Redirect in the user sign-in/out process","status":"published","published":"2021-04-02T13:58:34Z","modified":"2024-08-03T22:11:06Z","updated_at":"2026-11-03T03:24:43.965438Z"}],"ghsa":[{"id":"GHSA-fv82-r8qv-ch4v","title":"pomerium_signature is not verified in middleware in github.com/pomerium/pomerium","description":"### 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)","status":"published","published":"2021-05-21T16:24:22Z","modified":"2023-10-02T12:10:38Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-601"],"updated_at":"2026-11-02T14:37:07.641671Z"}],"nvd":[{"id":"CVE-2021-29652","description":"Pomerium from version 0.10.0-0.13.3 has an Open Redirect in the user sign-in/out process","status":"published","published":"2021-04-02T14:15:13.723Z","modified":"2026-06-17T03:48:05.577Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":5.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-601"],"updated_at":"2026-11-02T14:06:51.197859Z"}],"osv":[{"id":"CVE-2021-29652","description":"Pomerium from version 0.10.0-0.13.3 has an Open Redirect in the user sign-in/out process","status":"published","published":"2021-04-02T14:15:13.723Z","modified":"2026-10-20T10:54:38.941219664Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:44:19.483607Z"},{"id":"GHSA-fv82-r8qv-ch4v","title":"pomerium_signature is not verified in middleware in github.com/pomerium/pomerium","description":"### 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)","status":"published","published":"2021-05-21T16:24:22Z","modified":"2026-07-08T06:29:31.612331456Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-601"],"updated_at":"2026-11-02T15:46:46.760785Z"},{"id":"GO-2022-0827","title":"pomerium_signature is not verified in middleware in github.com/pomerium/pomerium","description":"pomerium_signature is not verified in middleware in github.com/pomerium/pomerium","status":"published","published":"2024-08-21T15:29:04Z","modified":"2026-03-03T04:52:17.301779Z","updated_at":"2026-11-02T15:47:00.918515Z"}]}}