CVE-2026-119407 json
Element Web and Element Desktop before 1.12.32 Forced Logout via Guest Credential URL Parameters
published 2026-10-30 10 d ago modified 2026-11-06 2 d ago also EUVD-2026-113791
- cvss
- 7.1
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.1%
- EPSS 0.1% chance of exploitation in 30 days, percentile 3%
- public exploits
- 0
- none known
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 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.
Patch / fix
- element-hq element-web 1.12.32
- element-hq element-desktop 1.12.32
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 5 d ago
Exploit prediction
0.14% chance of exploitation in the next 30 days, higher than 3% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 7.1 | 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 |
| CNA | 3.1 | 7.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H |
| CNA | 4.0 | 7.1 | 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
Affected products
- element-hq element-web
- element-hq element-desktop
Classification
- Weakness
-
- CWE-352 Cross-Site Request Forgery
References
-
github.com
/element-hq/element-web/commit/792453c88a399d570599f5d73b08b40157cd80c0
patch
-
github.com
/element-hq/element-web/security/advisories/GHSA-c88w-7h6p-27xr
vendor-advisory
-
github.com
/element-hq/element-web/blob/v1.12.31/apps/web/src/Lifecycle.ts#L188
technical-description
-
github.com
/element-hq/element-web/releases/tag/v1.12.32
release-notes
-
abraxaslabs.tech
/research/element-fragment-guest
third-party-advisory
-
github.com
/element-hq/element-web
product
-
vulncheck.com
/advisories/element-web-and-element-desktop-before-1.12.32-forced-logout-via-guest-credential-url-parameters
third-party-advisory
Sources
- CVE List CVE-2026-119407
- NVD CVE-2026-119407
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.