CVE-2026-0822
Description
A flaw was found in quickjs-ng. A remote attacker could exploit a heap-based buffer overflow vulnerability by manipulating the js_typed_array_sort function in quickjs.c. This could lead to information disclosure, denial of service, or potentially arbitrary code execution. An exploit for this vulnerability is publicly available.
Statement
This vulnerability is rated Moderate for Red Hat. A heap-based buffer overflow in the js_typed_array_sort function of quickjs.c in quickjs-ng can be exploited remotely with user interaction. This flaw could lead to information disclosure, denial of service, or arbitrary code execution in affected Red Hat Community Projects, such as radare2 in EPEL and Fedora.
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)
Integrity
Technical Impact: Modify Memory; Execute Unauthorized Code or Commands
Write operations could cause memory corruption. In some cases, an adversary can modify control data such as return addresses in order to execute unexpected code.
Availability
Technical Impact: DoS: Crash, Exit, or Restart
Attempting to access out-of-range, invalid, or unauthorized memory could cause the product to crash.
Other
Technical Impact: Unexpected State
Subsequent write operations can produce undefined or unexpected results.
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