🛡️ CVE-2026-18809 on Ubuntu — mozjs102

⚪ Unknown ✅ No Known Exploit OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Information disclosure in Firefox for Android and Firefox Focus for Android. This vulnerability was fixed in Firefox 153.0.3.

Distribution advisory

This page covers CVE-2026-18809 as tracked by Ubuntu, for the package mozjs102. No fixed version has been recorded for this distribution yet.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. A user must be tricked into taking some action. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity none, availability none.

Affected software

UBUNTU-CVE-2026-18809 is recorded against 8 packages.

  • mozjs102
  • mozjs115
  • mozjs38
  • mozjs52
  • mozjs68
  • mozjs78
  • mozjs91
  • thunderbird

Timeline and source

Published on 4 August 2026 and last revised on 6 August 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

ubuntu.com (Report)
www.cve.org (Report)
www.mozilla.org (Report)
bugzilla.mozilla.org (Report)
www.mozilla.org (Report)

Details

Severity Unknown
CVSS Score N/A
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2026-08-04
Updated 2026-08-11
Modified 2026-08-06
Fix URL N/A

Affected Packages

Software From version Fixed in
mozjs102 — —
mozjs115 — —
mozjs38 — —
mozjs52 — —
mozjs68 — —
mozjs78 — —
mozjs91 — —
thunderbird — —

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