CVE-2026-121179 Details
Description
Use after free in PDFium in Google Chrome prior to 157.0.8103.38 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)
A use-after-free vulnerability has been identified in the PDFium library used by Google Chrome. This issue affects Chrome versions prior to 157.0.8103.38. The vulnerability allows remote attackers to execute arbitrary code within the browser's sandbox by exploiting a crafted HTML page. The flaw arises because certain form field focus management functions in PDFium do not properly handle the lifecycle of objects, leading to the use of freed memory. This can be triggered without user interaction, simply by loading a malicious PDF or web page.
Users can update to Google Chrome version 157.0.8103.38 or later, where this vulnerability has been fixed.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Nov 3, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://chromereleases.googleblog.com/2026/11/stable-channel-update-for-desktop.html | [email protected] | Release NotesVendor Advisory |
| https://issues.chromium.org/issues/567936263 | [email protected] | ExploitIssue Tracking |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-416 | Use After Free | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| google chrome | < 157.0.8103.38 |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Nov 4, 2026 | Initial Analysis | [email protected] |
| Nov 4, 2026 | CVE Modified | CISA-ADP |
| Nov 3, 2026 | CVE Modified | CISA-ADP |
| Nov 3, 2026 | New CVE Received | [email protected] |