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CVE-2026-74963

🗓️ 18 Aug 2026 12:23:32Reported by Alpine Linux Development TeamType 
alpinelinux
 alpinelinux
🔗 security.alpinelinux.org👁 2 Views

Same-origin policy bypass in Firefox and Thunderbird Networking: Cookies component, fixed in versions 154, 140.14, and 153.1.

Related
Packages
Refs
ReporterTitlePublishedViews
Family
circl
Circl
CVE-2026-74963
19 Aug 202604:46
circl
cve
CVE
CVE-2026-74963
18 Aug 202612:23
cve
cvelist
Cvelist
CVE-2026-74963 Same-origin policy bypass in the Networking: Cookies component
18 Aug 202612:23
cvelist
debiancve
Debian CVE
CVE-2026-74963
18 Aug 202612:23
debiancve
euvd
EUVD
EUVD-2026-60661
18 Aug 202612:23
euvd
nvd
NVD
CVE-2026-74963
18 Aug 202613:17
nvd
osv
OSV
DEBIAN-CVE-2026-74963
18 Aug 202613:17
osv
ptsecurity
Positive Technologies
PT-2026-76996
18 Aug 202600:00
ptsecurity
redhatcve
RedhatCVE
CVE-2026-74963
18 Aug 202619:20
redhatcve
vulnrichment
Vulnrichment
CVE-2026-74963 Same-origin policy bypass in the Networking: Cookies component
18 Aug 202612:23
vulnrichment
OSOS VersionArchitecturePackagePackage VersionFilename
Alpine Linux3.24anyfirefox151.0.3-r0firefox-151.0.3-r0.apk
Alpine Linux3.24anythunderbird151.0.1-r0thunderbird-151.0.1-r0.apk

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19 Aug 2026 01:00Current
5.3Medium risk
Vulners AI Score5.3
CVSS 3.15.4
SSVC
2