CVE-2026-9887: Use after free in Google Chrome
CVE-2026-9887 is a use-after-free vulnerability in the Proxy component of Google Chrome versions prior to 148. 0. 7778. 216. This flaw allows a remote attacker to execute arbitrary code by delivering a crafted PAC script. The vulnerability is classified as critical by Chromium security. A vendor advisory is available but does not explicitly confirm patch status or remediation details. There are no known exploits in the wild at this time.
AI Analysis
Technical Summary
This vulnerability involves a use-after-free condition in the Proxy module of Google Chrome before version 148.0.7778.216. Exploitation requires a specially crafted Proxy Auto-Config (PAC) script that triggers arbitrary code execution remotely. The issue was publicly disclosed on May 28, 2026, with a corresponding Google Chrome stable channel update announcement. However, the vendor advisory does not explicitly state whether the patch has been released or if users must take additional actions.
Potential Impact
Successful exploitation could allow remote attackers to execute arbitrary code on affected systems running vulnerable Chrome versions. This could lead to full compromise of the user's browser context and potentially the underlying system depending on sandboxing and other mitigations. No known active exploits have been reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory at https://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop_0877304591.html for current remediation guidance. Users should update to Chrome version 148.0.7778.216 or later once the update is confirmed available. Until then, exercise caution with untrusted PAC scripts.
CVE-2026-9887: Use after free in Google Chrome
Description
CVE-2026-9887 is a use-after-free vulnerability in the Proxy component of Google Chrome versions prior to 148. 0. 7778. 216. This flaw allows a remote attacker to execute arbitrary code by delivering a crafted PAC script. The vulnerability is classified as critical by Chromium security. A vendor advisory is available but does not explicitly confirm patch status or remediation details. There are no known exploits in the wild at this time.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a use-after-free condition in the Proxy module of Google Chrome before version 148.0.7778.216. Exploitation requires a specially crafted Proxy Auto-Config (PAC) script that triggers arbitrary code execution remotely. The issue was publicly disclosed on May 28, 2026, with a corresponding Google Chrome stable channel update announcement. However, the vendor advisory does not explicitly state whether the patch has been released or if users must take additional actions.
Potential Impact
Successful exploitation could allow remote attackers to execute arbitrary code on affected systems running vulnerable Chrome versions. This could lead to full compromise of the user's browser context and potentially the underlying system depending on sandboxing and other mitigations. No known active exploits have been reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory at https://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop_0877304591.html for current remediation guidance. Users should update to Chrome version 148.0.7778.216 or later once the update is confirmed available. Until then, exercise caution with untrusted PAC scripts.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Chrome
- Date Reserved
- 2026-05-28T17:24:43.898Z
- 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: 6a18c65de29bf47b503b50ab
Added to database: 5/28/2026, 10:49:01 PM
Last enriched: 5/29/2026, 12:05:30 AM
Last updated: 5/29/2026, 8:16:59 AM
Views: 5
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