CVE-2026-2802
published 2026-02-24CVE-2026-2802: Race condition in the JavaScript: GC component. This vulnerability was fixed in Firefox 148 and Thunderbird 148.
PriorityP417medium4.2CVSS 3.1
AVNACHPRNUIRSUCLILAN
EPSS
0.14%
3.8th percentile
Race condition in the JavaScript: GC component. This vulnerability was fixed in Firefox 148 and Thunderbird 148.
Affected
4 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | firefox | < firefox 148.0-1 (sid) | firefox 148.0-1 (sid) |
| mozilla | firefox | < 148.0 | 148.0 |
| mozilla | firefox | — | — |
| mozilla | thunderbird | < 148.0 | 148.0 |
CVSS provenance
nvdv3.14.2MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N
osv4.2MEDIUM
vendor_debian4.2MEDIUM
vendor_redhat4.2MEDIUM
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GHSA
GHSA-p9gc-q2gc-jc6r: Race condition in the JavaScript: GC component
ghsa_unreviewed·2026-02-24
CVE-2026-2802 [MEDIUM] CWE-362 GHSA-p9gc-q2gc-jc6r: Race condition in the JavaScript: GC component
Race condition in the JavaScript: GC component. This vulnerability affects Firefox < 148.
OSV
CVE-2026-2802: Race condition in the JavaScript: GC component
osv·2026-02-24·CVSS 4.2
CVE-2026-2802 [MEDIUM] CVE-2026-2802: Race condition in the JavaScript: GC component
Race condition in the JavaScript: GC component. This vulnerability affects Firefox < 148 and Thunderbird < 148.
Red Hat
firefox: thunderbird: Race condition in the JavaScript: GC component
vendor_redhat·2026-02-24·CVSS 4.2
CVE-2026-2802 [MEDIUM] firefox: thunderbird: Race condition in the JavaScript: GC component
firefox: thunderbird: Race condition in the JavaScript: GC component
Race condition in the JavaScript: GC component. This vulnerability affects Firefox < 148 and Thunderbird < 148.
A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue:
Race condition in the JavaScript: GC component
Statement: Red Hat Product Security rates the severity of this flaw as determined by the Mozilla Foundation Security Advisory.
Package: firefox (Red Hat Enterprise Linux 10) - Not affected
Package: rhel10/firefox-flatpak (Red Hat Enterprise Linux 10) - Not affected
Package: rhel10/thunderbird-flatpak (Red Hat Enterprise Linux 10) - Not affected
Package: thunderbird (Red Hat Enterprise Linux 10) - Not affected
Package: firefox (Red Hat Enterp
Debian
CVE-2026-2802: firefox - Race condition in the JavaScript: GC component. This vulnerability affects Firef...
vendor_debian·2026·CVSS 4.2
CVE-2026-2802 [MEDIUM] CVE-2026-2802: firefox - Race condition in the JavaScript: GC component. This vulnerability affects Firef...
Race condition in the JavaScript: GC component. This vulnerability affects Firefox < 148 and Thunderbird < 148.
Scope: local
sid: resolved (fixed in 148.0-1)
Mozilla
Mozilla Foundation Security Advisory 2026-13: CVE-2026-2802
vendor_mozilla·CVSS 4.2
CVE-2026-2802 [MEDIUM] Mozilla Foundation Security Advisory 2026-13: CVE-2026-2802
Mozilla Foundation Security Advisory 2026-13
CVE: CVE-2026-2802
Product: Firefox
Impact: high
Fixed in: Firefox 148
Mozilla
Mozilla Foundation Security Advisory 2026-16: CVE-2026-2802
vendor_mozilla·CVSS 4.2
CVE-2026-2802 [MEDIUM] Mozilla Foundation Security Advisory 2026-16: CVE-2026-2802
Mozilla Foundation Security Advisory 2026-16
CVE: CVE-2026-2802
Product: Thunderbird
Impact: high
Fixed in: Thunderbird 148
No detection rules found.
No public exploits indexed.
2026-02-24
Published