CVE-2026-91749: Critical Use after free in Workers
Chromium CVE-2026-91749: Use after free
Other sources
This CVE was assigned by Chrome. Microsoft Edge (Chromium-based) ingests Chromium, which addresses this vulnerability. Please see Google Chrome Releases](https://chromereleases.googleblog.com/2026)) for more information.
— Microsoft
Use after free in Workers in Google Chrome prior to 153.0.8010.47 allowed a remote attacker to potentially execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: Critical)
— MITRE
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 153.0.4234.46 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 153.0.8010.47
Event History
Peer vulnerabilities
Found alongside the following vulnerabilities.
- CVE-2026-85043
- CVE-2026-102324
- CVE-2026-87499
- CVE-2026-85052
- CVE-2026-84324
- CVE-2026-103630
- CVE-2026-95372
- CVE-2026-95351
- CVE-2026-17657
- CVE-2026-91708
- CVE-2026-95339
- CVE-2026-79201
- CVE-2026-95310
- CVE-2026-95356
- CVE-2026-19173
- CVE-2026-91737
- CVE-2026-79218
- CVE-2026-84325
- CVE-2026-91722
- CVE-2026-91724
- CVE-2026-91721
- CVE-2026-79219
- CVE-2026-19137
- CVE-2026-19170
- CVE-2026-87647
- CVE-2026-91736
- CVE-2026-87514
- CVE-2026-91716
- CVE-2026-95313
- CVE-2026-84357
- CVE-2026-85051
- CVE-2026-85053
- CVE-2026-87628
- CVE-2026-17666
- CVE-2026-79195
- CVE-2026-84349
- CVE-2026-78954
- CVE-2026-79174
- CVE-2026-79187
- CVE-2026-79274
- CVE-2026-78952
- CVE-2026-79078
Frequently Asked Questions
What does an attacker need to exploit this issue?
The attacker needs to induce a user to load a crafted HTML page. The issue is remotely exploitable and can potentially lead to arbitrary code execution outside the Chrome sandbox.
Which Chrome versions need to be updated?
Google Chrome versions prior to 153.0.8010.47 are affected. Update Chrome to 153.0.8010.47 or a later version.
Are users exposed under normal browsing conditions?
A user may be exposed when visiting attacker-controlled or otherwise crafted web content. No special local access or installed extension is described in the available information.