CVE-2026-9957: Use after free in Google Chrome
Use after free in PDF in Google Chrome prior to 148.0.7778.216 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted PDF file. (Chromium security severity: High)
AI Analysis
Technical Summary
This vulnerability involves a use-after-free condition in the PDF handling code of Google Chrome before version 148.0.7778.216. Exploiting this flaw could enable remote code execution inside the sandbox environment via a malicious PDF file. The issue was publicly disclosed and patched by Google in a stable channel update. No CVSS score is available for this vulnerability.
Potential Impact
Successful exploitation could allow an attacker to execute arbitrary code within the sandboxed environment of Chrome, potentially leading to compromise of the affected system. However, the sandbox limits the scope of impact. No known active exploits have been reported.
Mitigation Recommendations
Google has released an update in Chrome version 148.0.7778.216 that addresses this vulnerability. Users should update to this version or later to remediate the issue. Since this is not a cloud service, remediation depends on applying the vendor's patch. Patch status is not explicitly confirmed in the advisory but the update release implies a fix is available.
CVE-2026-9957: Use after free in Google Chrome
Description
Use after free in PDF in Google Chrome prior to 148.0.7778.216 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted PDF file. (Chromium security severity: High)
CVSS v3.1
Score 8.8high
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a use-after-free condition in the PDF handling code of Google Chrome before version 148.0.7778.216. Exploiting this flaw could enable remote code execution inside the sandbox environment via a malicious PDF file. The issue was publicly disclosed and patched by Google in a stable channel update. No CVSS score is available for this vulnerability.
Potential Impact
Successful exploitation could allow an attacker to execute arbitrary code within the sandboxed environment of Chrome, potentially leading to compromise of the affected system. However, the sandbox limits the scope of impact. No known active exploits have been reported.
Mitigation Recommendations
Google has released an update in Chrome version 148.0.7778.216 that addresses this vulnerability. Users should update to this version or later to remediate the issue. Since this is not a cloud service, remediation depends on applying the vendor's patch. Patch status is not explicitly confirmed in the advisory but the update release implies a fix is available.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Chrome
- Date Reserved
- 2026-05-28T17:25:00.310Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
- Vendor Advisory Urls
- [{"url":"https://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop_0877304591.html","vendor":"Google"}]
Threat ID: 6a18c676e29bf47b503b6312
Added to database: 5/28/2026, 10:49:26 PM
Last enriched: 5/28/2026, 11:20:17 PM
Last updated: 5/29/2026, 2:34:17 PM
Views: 8
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.