CVE-2026-124874
NVD
Vulnerability Summary
Same-origin policy bypass in the Networking: HTTP component. This vulnerability was fixed in Firefox 160, Firefox ESR 115.45, Firefox ESR 153.7, Thunderbird 160, and Thunderbird 153.7.
Affected & Patched Versions
Not provided by NVD for this CVE.
No patched version published yet
Until a fix ships, reduce exposure:
- Restrict access to the affected service or interface to trusted networks.
- Disable the affected feature if you do not need it.
- Watch the vendor advisory for a firmware or software update.
What to do
Fix it during your normal patch cycle. No exploitation is confirmed yet.
- Check whether you run the affected product and which version.
- No patched version is listed yet. Limit access to the affected service to trusted networks, and disable the feature if you can.
- Subscribe to the vendor advisory so you learn when a fix ships.
Timeline
- Nov 10, 2026Published
- Nov 10, 2026Record last modified
Score, severity and exploitation changes are tracked from the day Watchtower started logging them.
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Set up CVE alertsExternal References
- Issue Trackinghttps://bugzilla.mozilla.org/show_bug.cgi?id=2080420
- Vendor Advisoryhttps://www.mozilla.org/security/advisories/mfsa2026-125/
- Vendor Advisoryhttps://www.mozilla.org/security/advisories/mfsa2026-126/
- Vendor Advisoryhttps://www.mozilla.org/security/advisories/mfsa2026-127/
- Vendor Advisoryhttps://www.mozilla.org/security/advisories/mfsa2026-128/
- Vendor Advisoryhttps://www.mozilla.org/security/advisories/mfsa2026-129/
Data last checked: Nov 14, 2026 01:09 UTC