CVE-2026-12459: Google Chrome · Inappropriate Implementation
Affects Google ChromeSource CVE Database V5
Not known to be exploited · CVSS 6.1 Medium : upgrade to 149.0.7827.155 when convenient.
Data as of 30 Oct 2026, 20:25 UTC
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 7% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 149.0.7827.155
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:NExploitation evidence
Disclosed: evidence found.
CVE published 17 Jun 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 30 Oct 2026.
What to do
Upgrade Google Chrome to 149.0.7827.155.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| GoogleChrome | Affected
| Fixed in
|
AI-suggested
Users should update Google Chrome to version 149.0.7827.155 or later, where this vulnerability is fixed. No other mitigation steps are indicated by the vendor advisory. Patch status is confirmed by the vendor advisory linked.
Description
Inappropriate implementation in Serial in Google Chrome prior to 149.0.7827.155 allowed a remote attacker to inject arbitrary scripts or HTML (UXSS) via a crafted HTML page. (Chromium security severity: High)