# CVE-2026-41256

## Summary

- **CVE ID:** CVE-2026-41256
- **Severity:** MEDIUM
- **CVSS Score:** 5.5 (CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N)
- **CWE:** CWE-158
- **Published:** May 11, 2026
- **Last Modified:** Jun 23, 2026

## Description

jq is a command-line JSON processor. In 1.8.1 and earlier, Top-level jq programs loaded from a file with -f are truncated at the first embedded NUL byte on current upstream HEAD. A crafted filter file such as . followed by \x00 and arbitrary suffix compiles and executes as only the prefix before the NUL. This leaves jq with a post-CVE-2026-33948 prefix/full-buffer mismatch on the compilation path even though the JSON parser path has already been fixed.

## Affected Products

- jqlang — jq (<= 1.8.1)

## References

- [CNA](https://github.com/jqlang/jq/security/advisories/GHSA-vf2h-chrj-q3fg)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.16%
- **EPSS Percentile:** 5.3

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._