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CVE-2026-126873VulnerabilityPublished

Extensions · Use After Free

Source GCVE Database

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Authoritative record:CVE-2026-126873· High

Not known to be exploited : upgrade to 157.0.8103.78 soon.

Data as of 12 Nov 2026, 02:03 UTC

Severity
High

Rated High by Threat Radar's AI analysis · CVSS not yet scored by NVD

Thin evidence

One scorer or none
Patch
Available – fixed in 157.0.8103.78

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 11 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 11 Nov 2026.

What to do

Upgrade Chrome to 157.0.8103.78.

Affected software

ProductAffectedFixed in
GoogleChromeAffected
  • >=157.0.8103.78 <157.0.8103.78
Fixed in
  • 157.0.8103.78

AI-suggested

A fix is available in Google Chrome version 157.0.8103.78 and later. Users and administrators should update affected Chrome installations on Windows to this version or newer to remediate the vulnerability.

Description

A use-after-free vulnerability exists in the Extensions component of Google Chrome on Windows versions prior to 157.0.8103.78. This flaw allows a remote attacker to execute arbitrary code outside the sandbox by tricking a user into visiting a crafted HTML page. The vulnerability has been assigned a high severity by Chromium security.

References

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