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CVE-2026-19153VulnerabilityPublished

Workers · Insufficient Validation of Untrusted Input

Source GCVE Database

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Authoritative record:CVE-2026-19153· High 8.1

Not known to be exploited · CVSS 8.1 High : upgrade to 151.0.7922.109 soon.

Data as of 5 Nov 2026, 00:01 UTC

CVSS 3.1 base score
8.1High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.3% chance of exploitation in 30 days – higher than 26% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 151.0.7922.109
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 6 Aug 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 5 Nov 2026.

What to do

Upgrade Chrome to 151.0.7922.109.

Affected software

ProductAffectedFixed in
GoogleChromeAffected
  • >=151.0.7922.109 <151.0.7922.109
Fixed in
  • 151.0.7922.109

AI-suggested

If you cannot patch yet, users should follow general best practices to avoid renderer process compromise, such as avoiding untrusted content and keeping Chrome updated.

Description

Insufficient validation of untrusted input in Workers in Google Chrome prior to 151.0.7922.109 allowed a remote attacker who had compromised the renderer process to bypass site isolation via a crafted HTML page. (Chromium security severity: High)

References

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