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VulnerabilityPublished

CVE-2026-103621: Compositing · Integer Overflow

Source GCVE Database

0
Authoritative record:CVE-2026-103621· Medium 4.3

Not known to be exploited · CVSS 4.3 Medium : upgrade to 154.0.8037.97 when convenient.

Data as of 26 Oct 2026, 13:47 UTC

CVSS 3.1 base score
4.3Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.2% chance of exploitation in 30 days – higher than 9% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 154.0.8037.97
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 2 Oct 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: 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 26 Oct 2026.

What to do

Upgrade Chrome to 154.0.8037.97.

Affected software

ProductAffectedFixed in
GoogleChromeAffected
  • >=154.0.8037.97 <154.0.8037.97
Fixed in
  • 154.0.8037.97

Description

Integer overflow in Compositing in Google Chrome prior to 154.0.8037.97 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: High)

References

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