CVEvulnerability
CVE-2021-23971
6.5 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2021-02-26
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
- CVSS 2.0 ([email protected])
- 4.3 MEDIUM — AV:N/AC:M/Au:N/C:P/I:N/A:N
Description
When processing a redirect with a conflicting Referrer-Policy, Firefox would have adopted the redirect's Referrer-Policy. This would have potentially resulted in more information than intended by the original origin being provided to the destination of the redirect. This vulnerability affects Firefox < 86.
Affected configurations
• mozilla firefox (< 86.0)
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1678545 Issue Tracking, Permissions Required, Vendor Advisory
- https://security.gentoo.org/glsa/202104-10 Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2021-07/ Release Notes, Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1678545 Issue Tracking, Permissions Required, Vendor Advisory
- https://security.gentoo.org/glsa/202104-10 Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2021-07/ Release Notes, Vendor Advisory