CVE-2026-121251: V8 · Missing Authorization
Source GCVE Database
Not known to be exploited : upgrade to 157.0.8103.38 when convenient.
Data as of 3 Nov 2026, 22:33 UTC
Rated Low by Threat Radar's AI analysis · CVSS not yet scored by NVD
Thin evidence
One scorer or none- Patch
- Available – fixed in 157.0.8103.38
Exploitation evidence
Disclosed: evidence found.
CVE published 3 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 3 Nov 2026.
What to do
Upgrade Chrome to 157.0.8103.38.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| GoogleChrome | Affected
| Fixed in
|
AI-suggested
A fixed version 157.0.8103.38 or later addresses this vulnerability. Users and administrators should update Google Chrome to version 157.0.8103.38 or later to remediate this issue. No additional mitigation steps are indicated.
Description
A missing authorization vulnerability in the V8 engine of Google Chrome versions prior to 157.0.8103.38 allows a remote attacker to bypass the web origin policy using a crafted HTML page. The Chromium security team has rated this issue as low severity.