CVE-2026-110155: Buffer overflow in PDFium on 2026-10-05

Published Oct 5, 2026
·
Updated

Buffer overflow in PDFium in Google Chrome prior to 155.0.8059.79 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)

Other sources

Chromium CVE-2026-110155: Buffer overflow

— Microsoft

This CVE was assigned by Chrome. Microsoft Edge (Chromium-based) ingests Chromium, which addresses this vulnerability. Please see Google Chrome Releases for more information.

— Microsoft

Affected Software

4 affected componentsFixes available
Google Chrome<155.0.8059.79
Microsoft Edge (Chromium-based)<155.0.4283.60
155.0.4283.60
Google Chrome<155.0.8059.79
Microsoft Edge<152.0.4191.135
152.0.4191.135

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 155.0.4283.60
  2. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 152.0.4191.135
  3. Upgrade

    Upgrade Google Chrome to a version that resolves this vulnerability.

    Fixed in 155.0.8059.79

Event History

Oct 13, 2026
CVE Published
via MITRE·09:01 PM
Data Sourced
via MITRE·09:01 PM
DescriptionWeakness
Data Sourced
via NVD·10:17 PM
DescriptionSeverityWeaknessAffected Software
Oct 16, 2026
Data Sourced
via Microsoft·02:00 PM
DescriptionSeverityWeaknessAffected Software
Oct 20, 2026
Data Sourced
12:00 AM
SeverityWeakness

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

Frequently Asked Questions

1

Which Chrome versions need to be updated?

Google Chrome versions earlier than 155.0.8059.79 are affected. Update Chrome to 155.0.8059.79 or later.

2

What does an attacker need to exploit this issue?

The attacker must induce a user to load a crafted HTML page remotely. Successful exploitation can execute arbitrary code inside Chrome's sandbox.

3

Is this a sandbox escape?

No. The available information states that code execution occurs inside the sandbox; it does not state that the vulnerability escapes the sandbox.

Company

Resources

Contact

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