CVE-2026-109772

CVE-2026-109772

published October 13, 2026

CVSS
—
EPSS
0%
Percentile
4.5
In the wild
Unconfirmed
What it is

Same-origin policy bypass in the DevTools component. This vulnerability was fixed in Firefox 158 and Thunderbird 158.

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.00157 · 4.5th percentile
Published
2026-10-13T17:17Z
References (3)
https://bugzilla.mozilla.org/show_bug.cgi?id=2066063 · [email protected]https://www.mozilla.org/security/advisories/mfsa2026-106/ · [email protected]https://www.mozilla.org/security/advisories/mfsa2026-109/ · [email protected]
EPSS history
Timeline
  • 15 OCT 03:28Z
    EPSS moved — → 0%
    epss
  • 13 OCT 12:29Z
    Same-origin policy bypass in the DevTools component
    cvelistv5
  • 13 OCT 12:29Z
    Same-origin policy bypass in the DevTools component
    cvelistv5