CVE-2026-78947CWE-459

CVE-2026-78947

Medium · published August 26, 2026

CVSS v3.1
6.5
EPSS
0%
Percentile
22.5
In the wild
Unconfirmed
What it is

Incomplete cleanup in Chromium in Google Chrome prior to 152.0.7977.65 allowed a remote attacker leveraging social engineering to bypass web origin policy via a crafted Chrome extension. (Chromium security severity: Low)

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.00309 · 22.5th percentile
Weakness
CWE-459 · Incomplete Cleanup
Published
2026-08-26T01:17Z
Affected products (1)
ProductVersionsFixed in
google/chrome< 152.0.7977.65152.0.7977.65
References (2)
https://chromereleases.googleblog.com/2026/08/stable-channel-update-for-desktop_0256176589.html · [email protected]https://issues.chromium.org/issues/523313378 · [email protected]
EPSS history
Timeline
  • 27 AUG 06:46Z
    EPSS moved — → 0%
    epss
  • 25 AUG 20:10Z
    Incomplete cleanup in Chromium in Google Chrome prior to 152.0.7977.65 allowed a remote attacker leveraging social engineering to bypass web origin policy via…
    cvelistv5