CVE-2026-8971
medium
CVSS v3
6.5
CVSS v2
—
VIR risk
6.5
Description
Same-origin policy bypass in the Networking: JAR component. This vulnerability was fixed in Firefox 151 and Thunderbird 151.
Predictions
Exploit likelihood
75%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2026-8971.html
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2026-8971
Vendor advisory: security@mozilla.org — https://www.mozilla.org/security/advisories/mfsa2026-50/
Vendor advisory: security@mozilla.org — https://www.mozilla.org/security/advisories/mfsa2026-46/
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| debian | sid | fixed | 151.0-1 |
| sles | affected | |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| mozilla | firefox | {"endExcluding":"151.0.0"} | 151.0.0 |
| mozilla | thunderbird | {"endExcluding":"151.0.0"} | 151.0.0 |
References
CWEs
CWE-346
Verify integrity in audit chain (admin only). AS-IS.