CVE-2026-120930 json
Incorrect authorization in Blink in Google Chrome prior to 156.0.8078.47 allowed a remote attacker to bypass web origin policy via a crafte…
published 2026-11-03 5 d ago modified 2026-11-05 3 d ago also EUVD-2026-116385
- cvss
- 5.4
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 7%
- public exploits
- 0
- none known
Summary
Incorrect authorization in Blink in Google Chrome prior to 156.0.8078.47 allowed a remote attacker to bypass web origin policy via a crafted HTML page. (Chromium security severity: High)
Patch / fix
- google chrome 156.0.8078.47
- chromium Debian 12 156.0.8078.47-1~deb12u1
- chromium Debian 13 156.0.8078.47-1~deb13u1
- chromium Debian 14 156.0.8078.47-1
debian advisories DEBIAN-CVE-2026-120930
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-2026-120930 updated cvss 8.8
chromium-browser: Incorrect authorization in Blink
-
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
- partial
- Assessed
- 4 d ago
Exploit prediction
0.18% chance of exploitation in the next 30 days, higher than 7% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N |
| CNA | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N |
Affected products
- Google Chrome
Classification
- Weakness
-
- CWE-863 Incorrect Authorization
- Technology feeds
References
-
chromereleases.googleblog.com
/2026/10/stable-channel-update-for-desktop_02018666648.html
release-notes, vendor-advisory
-
issues.chromium.org
/issues/515948871
permissions-required
Sources
- CVE List CVE-2026-120930
- NVD CVE-2026-120930
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.