Improper Neutralization of Null Byte or NUL Character Affecting stedolan/jq package, versions [,1.8.2-rc1)
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk IDSNYK-UNMANAGED-STEDOLANJQ-16642128
- published12 May 2026
- disclosed11 May 2026
- creditklungler
Introduced: 11 May 2026
CVE-2026-41256 (opens in a new tab)How to fix?
Upgrade stedolan/jq to version 1.8.2-rc1 or higher.
Overview
Affected versions of this package are vulnerable to Improper Neutralization of Null Byte or NUL Character via the -f option when loading top-level programs containing embedded NUL bytes. An attacker can cause truncation of the loaded program, leading to unintended code execution by supplying a crafted filter file with an embedded NUL character.