CVE-2026-119407: high-severity vulnerability in element-hq element-desktop
Element Web and Element Desktop before 1.12.32 Forced Logout via Guest Credential URL Parameters
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.1epss 0.1%
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 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.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N
Related CVEs — element-hq element-desktop
In the same product, most dangerous first.
CVE-2024-47771HIGHElement Desktop vulnerable to potential exposure of access token via authenticated mediaEPSS 0.6%CVE-2026-55850MEDIUMElement Web: A malicious homeserver can inject HTML in Element Web using its homepageEPSS 0.5%CVE-2024-51750MEDIUMElement allows a malicious homeserver can modify events leading to unrenderable events or roomsEPSS 0.5%CVE-2024-47779HIGHElement Web vulnerable to potential exposure of access token via authenticated mediaEPSS 0.4%CVE-2025-59161LOWIn Element Web and Element Desktop, a malicious room can hide an unrelated room and cause it to be left when the malicious room is leftEPSS 0.4%CVE-2024-51749LOWElement's thumbnails can be abused to misrepresent the content of an attachmentEPSS 0.4%
References
https://abraxaslabs.tech/research/element-fragment-guesthttps://github.com/element-hq/element-webhttps://github.com/element-hq/element-web/blob/v1.12.31/apps/web/src/Lifecycle.ts#L188https://github.com/element-hq/element-web/commit/792453c88a399d570599f5d73b08b40157cd80c0https://github.com/element-hq/element-web/releases/tag/v1.12.32https://github.com/element-hq/element-web/security/advisories/GHSA-c88w-7h6p-27xrhttps://www.vulncheck.com/advisories/element-web-and-element-desktop-before-1.12.32-forced-logout-via-guest-credential-url-parameters