Red Hat Security Advisory: firefox security update
Affects Red Hat firefoxSource GCVE Database
Mentioned vulnerabilities
Not known to be exploited · CVSS 7.3 High · fixed in Red Hat package updates : patch Red Hat firefox soon.
Data as of 6 Nov 2026, 03:20 UTC
- Patch
- Available – fixed in 115.35.2
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:LExploitation evidence
Disclosed: evidence found.
CVE published 7 May 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 5 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Red Hat Product Security Red Hat | Affected
| Fixed in
|
AI-suggested
Red Hat has released updated Firefox packages (e.g., firefox-140.10.2-1.el8_8) for Red Hat Enterprise Linux 8.8 variants that address these vulnerabilities. Users should apply these official updates promptly to remediate the issues. For detailed update instructions, refer to Red Hat's article at https://access.redhat.com/articles/11258. No additional mitigation steps are indicated beyond applying the provided patches.
Description
Red Hat has issued a security advisory for Mozilla Firefox addressing multiple vulnerabilities, including a use-after-free flaw in the DOM networking component (CVE-2026-8090), memory safety bugs (CVE-2026-8092), and an issue in the WebRTC component (CVE-2026-8094). These vulnerabilities are fixed in updated Firefox ESR and Firefox versions provided by Red Hat for their Enterprise Linux 8.8 releases. The update is rated as important by Red Hat Product Security.
References
- access.redhat.com/errata/RHSA-2026:24755 (opens in a new tab)
- access.redhat.com/security/updates/classification/ (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2467706 (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2467708 (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2467709 (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_24755.json (opens in a new tab)