{"id":"CVE-2026-34749","aliases":["EUVD-2026-18017","GHSA-p6mr-xf3r-ghq4"],"status":"published","title":"Payload has a CSRF Protection Bypass in Authentication Flow","description":"Payload is a free and open source headless content management system. Prior to version 3.79.1, a Cross-Site Request Forgery (CSRF) vulnerability exists in the authentication flow. Under certain conditions, the configured CSRF protection could be bypassed, allowing cross-site requests to be made. This issue has been patched in version 3.79.1.","severity":{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00134,"percentile":0.02952,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-352"],"published":"2026-04-01T19:49:35Z","modified":"2026-10-28T02:30:41Z","fixes":[{"ecosystem":"npm","package":"payload","fixed_in":["3.79.1"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"npm","package":"payload","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.79.1"}]}]},{"source":"osv","ecosystem":"npm","package":"payload","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"3.79.1"}]}]}],"products":[{"vendor":"payloadcms","product":"payload"}],"references":[{"url":"https://github.com/payloadcms/payload/security/advisories/GHSA-p6mr-xf3r-ghq4","tags":["x_refsource_CONFIRM","Mitigation","Vendor Advisory","advisory","web"]},{"url":"https://github.com/payloadcms/payload/releases/tag/v3.79.1","tags":["x_refsource_MISC","Product","Release Notes","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-34749","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-p6mr-xf3r-ghq4"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/34xxx/CVE-2026-34749.json","tags":["advisory"]},{"url":"https://github.com/payloadcms/payload","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2026-34749","title":"Payload has a CSRF Protection Bypass in Authentication Flow","description":"Payload is a free and open source headless content management system. Prior to version 3.79.1, a Cross-Site Request Forgery (CSRF) vulnerability exists in the authentication flow. Under certain conditions, the configured CSRF protection could be bypassed, allowing cross-site requests to be made. This issue has been patched in version 3.79.1.","status":"published","published":"2026-04-01T19:49:35.934Z","modified":"2026-04-06T19:46:32.77Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L","level":"medium","assessor":"cna"}],"cwes":["CWE-352"],"updated_at":"2026-11-02T14:20:14.665567Z"}],"euvd":[{"id":"EUVD-2026-18017","description":"Payload is a free and open source headless content management system. Prior to version 3.79.1, a Cross-Site Request Forgery (CSRF) vulnerability exists in the authentication flow. Under certain conditions, the configured CSRF protection could be bypassed, allowing cross-site requests to be made. This issue has been patched in version 3.79.1.","status":"published","published":"2026-04-01T19:49:35Z","modified":"2026-04-06T19:46:32Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L","level":"medium"}],"updated_at":"2026-11-02T19:25:15.380284Z"}],"ghsa":[{"id":"GHSA-p6mr-xf3r-ghq4","title":"Payload has a CSRF Protection Bypass in Authentication Flow","description":"### Impact\n\nA Cross-Site Request Forgery (CSRF) vulnerability existed in the authentication flow. Under certain conditions, the configured CSRF protection could be bypassed, allowing cross-site requests to be made.\n\nConsumers are affected if ALL of these are true:\n\n- Payload version **\u003c v3.79.1**\n- `serverURL` is configured\n\n### Patches\n\nThis vulnerability has been patched in **v3.79.1**. Additional validation has been added to the authentication flow.\n\nConsumers should upgrade to **v3.79.1** or later.\n\n### Workarounds\n\nThere is no complete workaround without upgrading. \n\nIf consumers cannot upgrade immediately, setting `cookies.sameSite` to `'Strict'` will prevent the session cookie from being sent cross-site. However, this will also require users to re-authenticate when navigating to the application from external links (e.g. email, other sites).","status":"published","published":"2026-04-01T21:36:06Z","modified":"2026-04-01T21:36:09Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L","level":"medium"}],"cwes":["CWE-352"],"updated_at":"2026-11-02T14:39:47.075804Z"}],"nvd":[{"id":"CVE-2026-34749","description":"Payload is a free and open source headless content management system. Prior to version 3.79.1, a Cross-Site Request Forgery (CSRF) vulnerability exists in the authentication flow. Under certain conditions, the configured CSRF protection could be bypassed, allowing cross-site requests to be made. This issue has been patched in version 3.79.1.","status":"published","published":"2026-04-01T20:16:27.187Z","modified":"2026-10-26T21:10:00.17Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L","level":"medium","assessor":"secondary"}],"cwes":["CWE-352"],"updated_at":"2026-11-02T14:12:12.73929Z"}],"osv":[{"id":"CVE-2026-34749","title":"Payload has a CSRF Protection Bypass in Authentication Flow","description":"Payload is a free and open source headless content management system. Prior to version 3.79.1, a Cross-Site Request Forgery (CSRF) vulnerability exists in the authentication flow. Under certain conditions, the configured CSRF protection could be bypassed, allowing cross-site requests to be made. This issue has been patched in version 3.79.1.","status":"published","published":"2026-04-01T19:49:35.934Z","modified":"2026-10-28T02:30:41.408500494Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L","level":"medium"}],"cwes":["CWE-352"],"updated_at":"2026-11-02T15:45:02.247031Z"},{"id":"GHSA-p6mr-xf3r-ghq4","title":"Payload has a CSRF Protection Bypass in Authentication Flow","description":"### Impact\n\nA Cross-Site Request Forgery (CSRF) vulnerability existed in the authentication flow. Under certain conditions, the configured CSRF protection could be bypassed, allowing cross-site requests to be made.\n\nConsumers are affected if ALL of these are true:\n\n- Payload version **\u003c v3.79.1**\n- `serverURL` is configured\n\n### Patches\n\nThis vulnerability has been patched in **v3.79.1**. Additional validation has been added to the authentication flow.\n\nConsumers should upgrade to **v3.79.1** or later.\n\n### Workarounds\n\nThere is no complete workaround without upgrading. \n\nIf consumers cannot upgrade immediately, setting `cookies.sameSite` to `'Strict'` will prevent the session cookie from being sent cross-site. However, this will also require users to re-authenticate when navigating to the application from external links (e.g. email, other sites).","status":"published","published":"2026-04-01T21:36:06Z","modified":"2026-04-01T21:56:21.133398Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L","level":"medium"}],"cwes":["CWE-352"],"updated_at":"2026-11-02T15:46:52.891208Z"}]}}