CVE-2026-78951 in the critical feed json
Use after free in ServiceWorker in Google Chrome prior to 152.0.7977.65 allowed a remote attacker to execute arbitrary code outside the san…
published 2026-08-25 2 mo ago modified 2026-08-27 2 mo ago also EUVD-2026-65990
- cvss
- 9.6
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 40%
- public exploits
- 0
- none known
Summary
Use after free in ServiceWorker in Google Chrome prior to 152.0.7977.65 allowed a remote attacker to execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: Medium)
Patch / fix
- google chrome 152.0.7977.65
- chromium Debian 12 152.0.7977.75-1~deb12u1
- chromium Debian 13 152.0.7977.75-1~deb13u1
- chromium Debian 14 152.0.7977.64-1
debian advisories DEBIAN-CVE-2026-78951
- chromium openSUSE Leap 16.0 152.0.7977.82-bp160.1.1
- chromium openSUSE Tumbleweed 152.0.7977.64-1.1
opensuse advisories openSUSE-SU-2026:21799-1openSUSE-SU-2026:11628-1
Vendor advisories
What the vendors themselves say about their products: affected, fixed or not affected, and what to do.
red hat product security vex CVE-2026-78951 updated cvss 9.6
chromium-browser: Chromium: Arbitrary code execution via use-after-free in ServiceWorker
-
Red Hat All currently supported Red Hat productsnot affected: vulnerable code not present
Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 2 mo ago
Exploit prediction
0.46% chance of exploitation in the next 30 days, higher than 40% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 9.6 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H |
| CNA | 3.1 | 9.6 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H |
Affected products
- Google Chrome
Classification
- Weakness
-
- CWE-416 Use After Free
- Technology feeds
References
-
chromereleases.googleblog.com
/2026/08/stable-channel-update-for-desktop_0256176589.html
release-notes, vendor-advisory
-
issues.chromium.org
/issues/522957054
permissions-required
Sources
- CVE List CVE-2026-78951
- NVD CVE-2026-78951
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.