CVE-2026-1144
Description
A flaw was found in quickjs-ng. A remote attacker could exploit a use-after-free vulnerability within the Atomics Ops Handler component, specifically in the quickjs.c file. This manipulation could lead to arbitrary code execution, information disclosure, or a denial of service. The exploit for this vulnerability is publicly available.
Statement
This vulnerability is rated Important for Red Hat. A use-after-free flaw in the quickjs-ng JavaScript engine's Atomics Ops handler can be exploited remotely. If quickjs-ng is used in a Red Hat product, this could lead to arbitrary code execution. The exploit is publicly available.
Mitigation
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
Understanding the Weakness (CWE)
Confidentiality
Technical Impact: Read Memory
If the expired pointer is used in a read operation, an attacker might be able to control data read in by the application.
Availability
Technical Impact: DoS: Crash, Exit, or Restart
If the expired pointer references a memory location that is not accessible to the product, or points to a location that is "malformed" (such as NULL) or larger than expected by a read or write operation, then a crash may occur.
Integrity,Confidentiality,Availability
Technical Impact: Execute Unauthorized Code or Commands
If the expired pointer is used in a function call, or points to unexpected data in a write operation, then code execution may be possible.
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