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CVE-2026-12291

Use-after-free in the Networking: HTTP component PUBLISHED

Description (CNA)

Use-after-free in the Networking: HTTP component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12.

Affected (CNA)

Vendor / productVersions
Mozilla / Firefoxunaffected 115.37 through 115.*; unaffected 140.12 through 140.*; unaffected 152 through *
Mozilla / Thunderbirdunaffected 140.12 through 140.*; unaffected 152 through *

CWE

No CWE identifiers supplied.

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.

redhat-SADP

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Use-after-free in the Networking: HTTP component