CVE-2026-119331: LadybirdBrowser ladybird · Information Exposure
Affects LadybirdBrowser ladybirdSource CVE Database V5
Not known to be exploited · CVSS 7.1 High.
Data as of 30 Oct 2026, 20:38 UTC
Thin evidence
One scorer or none| CNA (GitHub_M) | CVSS 3.1 | 7.1 |
|---|
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:NExploitation evidence
Disclosed: evidence found.
CVE published 30 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| LadybirdBrowserladybird | Affected
| Fixed in– |
AI-suggested
This vulnerability is fixed by the commit c0d68bddf3e3616e5173835f0f4c155ee9700d91. Users and administrators should update LadybirdBrowser to a version that includes this fix. No additional mitigation is required once the patch is applied.
Description
CVE-2026-119331 is a vulnerability in the LadybirdBrowser web browser where certain CSS stylesheet operations did not enforce the origin-clean flag, allowing a malicious page to read and modify CSS rules from cross-origin stylesheets. This bypasses the Same-Origin Policy, potentially exposing sensitive stylesheet information and altering page layout or visibility. The issue does not lead to memory corruption, code execution, or persistence after the attacker page closes. The vulnerability has been fixed in a specific commit.