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Description

Same-origin policy bypass in the Request Handling component. This vulnerability affects Firefox < 146, Firefox ESR < 115.31, Firefox ESR < 140.6, Thunderbird < 146, and Thunderbird < 140.6.

PUBLISHED Reserved 2025-12-09 | Published 2025-12-09 | Updated 2025-12-10 | Assigner mozilla

Product status

Any version before 146
affected

Any version before 115.31
affected

Any version before 140.6
affected

Any version before 146
affected

Any version before 140.6
affected

Credits

Igor Morgenstern

References

bugzilla.mozilla.org/show_bug.cgi?id=2000218

www.mozilla.org/security/advisories/mfsa2025-92/

www.mozilla.org/security/advisories/mfsa2025-93/

www.mozilla.org/security/advisories/mfsa2025-94/

www.mozilla.org/security/advisories/mfsa2025-95/

www.mozilla.org/security/advisories/mfsa2025-96/

cve.org (CVE-2025-14331)

nvd.nist.gov (CVE-2025-14331)

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