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VulnerabilityPublished

CVE-2026-121250: Google Chrome · Use After Free

Affects Google ChromeSource CVE Database V5

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Not known to be exploited : upgrade to 157.0.8103.38 soon.

Data as of 3 Nov 2026, 20:59 UTC

Severity
High

Rated High by the CNA (Chrome) · CVSS not yet scored by NVD

Thin evidence

One scorer or none
Patch
Available – fixed in 157.0.8103.38

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 3 Nov 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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 Google Chrome to 157.0.8103.38.

Affected software

ProductAffectedFixed in
GoogleChromeAffected
  • >=157.0.8103.38 <157.0.8103.38
Fixed in
  • 157.0.8103.38

AI-suggested

Users and administrators should update Google Chrome to version 157.0.8103.38 or later to remediate this vulnerability. The vendor has released an official fix in this version. No additional mitigation steps are indicated beyond applying the update.

Description

A use-after-free vulnerability exists in the Extensions component of Google Chrome prior to version 157.0.8103.38. This flaw could allow a remote attacker, through social engineering and a crafted Chrome extension, to execute arbitrary code outside the browser sandbox. The vulnerability has been fixed in version 157.0.8103.38.

References

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