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CVE-2026-119407 Details

Description

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.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:7.1 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://abraxaslabs.tech/research/element-fragment-guest	[email protected]
https://github.com/element-hq/element-web	[email protected]
https://github.com/element-hq/element-web/blob/v1.12.31/apps/web/src/Lifecycle.ts#L188	[email protected]
https://github.com/element-hq/element-web/commit/792453c88a399d570599f5d73b08b40157cd80c0	[email protected]
https://github.com/element-hq/element-web/releases/tag/v1.12.32	[email protected]
https://github.com/element-hq/element-web/security/advisories/GHSA-c88w-7h6p-27xr	[email protected]
https://www.vulncheck.com/advisories/element-web-and-element-desktop-before-1.12.32-forced-logout-via-guest-credential-url-parameters	[email protected]

see all 7 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-352	Cross-Site Request Forgery (CSRF)	[email protected]

Affected Products

No affected product data is available for this CVE.

Change History

2 change records found show changes

Date	Action	Recorded By
Nov 4, 2026	CVE Modified	CISA-ADP
Oct 30, 2026	New CVE Received	[email protected]