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CVE-2025-8031

Published: Jul 22, 2025

Modified: Apr 13, 2026

PUBLISHED

Description

The `username:password` part was not correctly stripped from URLs in CSP reports potentially leaking HTTP Basic Authentication credentials. This vulnerability was fixed in Firefox 141, Firefox ESR 128.13, Firefox ESR 140.1, Thunderbird 141, Thunderbird 128.13, and Thunderbird 140.1.

Vendor	Product	Versions
Mozilla	Firefox	unaffected `128.13 - <= 128.` unaffected `140.1 - <= 140.` unaffected `141 - <= *`
Mozilla	Thunderbird	unaffected `128.13 - <= 128.` unaffected `140.1 - <= 140.` unaffected `141 - <= *`

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1971719

https://www.mozilla.org/security/advisories/mfsa2025-56/

https://www.mozilla.org/security/advisories/mfsa2025-58/

https://www.mozilla.org/security/advisories/mfsa2025-59/

https://www.mozilla.org/security/advisories/mfsa2025-61/

https://www.mozilla.org/security/advisories/mfsa2025-62/

https://www.mozilla.org/security/advisories/mfsa2025-63/

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