{"id":"CVE-2026-119407","title":"Element Web and Element Desktop before 1.12.32 Forced Logout via Guest Credential URL Parameters","summary":"Element Web and Element Desktop before 1.12.32 accept guest credentials from URL fragment parameters in loadSession, allowing remote unauthenticated attackers to log out users and clear local stores. Attackers can lure logged-in users in…","severity":"high","cvss":7.1,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H","cvssSource":"cna","cwe":["CWE-352"],"vendor":"element-hq","product":"element-web","affected":["element-web < 1.12.32","element-desktop < 1.12.32"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-11-04T02:08:05.542991Z"},"published":"2026-10-30","updated":"2026-11-06","sourceUpdated":"2026-11-06T17:35:18.675Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-119407","references":[{"url":"https://github.com/element-hq/element-web/security/advisories/GHSA-c88w-7h6p-27xr","label":"GitHub Security Advisory (GHSA-c88w-7h6p-27xr)"},{"url":"https://github.com/element-hq/element-web/commit/792453c88a399d570599f5d73b08b40157cd80c0"},{"url":"https://github.com/element-hq/element-web/blob/v1.12.31/apps/web/src/Lifecycle.ts#L188"},{"url":"https://github.com/element-hq/element-web/releases/tag/v1.12.32","label":"element-web v1.12.32 Release Notes"},{"url":"https://abraxaslabs.tech/research/element-fragment-guest"},{"url":"https://github.com/element-hq/element-web"},{"url":"https://www.vulncheck.com/advisories/element-web-and-element-desktop-before-1.12.32-forced-logout-via-guest-credential-url-parameters","label":"VulnCheck Advisory: Element Web and Element Desktop before 1.12.32 Forced Logout via Guest Credential URL Parameters"}],"tags":["cve.org"],"epss":0.00142,"epssPercentile":0.03579,"ingestedAt":"2026-11-03T10:42:03.638Z","slug":"CVE-2026-119407","body":"## Overview\n\nElement Web and Element Desktop before 1.12.32 accept guest credentials from URL fragment parameters in loadSession, allowing remote unauthenticated attackers to log out users and clear local stores. Attackers can lure logged-in users into opening links with guest_user_id and guest_access_token to force an attacker-controlled guest session and destroy unbacked end-to-end encryption keys.\n\n## Affected\n\n- `element-web < 1.12.32`\n- `element-desktop < 1.12.32`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":39,"depthScoreParts":{"impact":39.1,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}