CVE-2026-41256
ADVISORY - nistSummary
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.
EPSS Score: 0.00012 (0.019)
Common Weakness Enumeration (CWE)
ADVISORY - nist
Improper Neutralization of Null Byte or NUL Character
NIST
CREATED
UPDATED
ADVISORY IDCVE-2026-41256
EXPLOITABILITY SCORE
1.8
EXPLOITS FOUND
-
COMMON WEAKNESS ENUMERATION (CWE)
CVSS SCORE
5.5mediumDebian
CREATED
UPDATED
ADVISORY IDCVE-2026-41256
EXPLOITABILITY SCORE
-
EXPLOITS FOUND
-
COMMON WEAKNESS ENUMERATION (CWE)-
Ubuntu
CREATED
UPDATED
ADVISORY IDCVE-2026-41256
EXPLOITABILITY SCORE
-
EXPLOITS FOUND
-
COMMON WEAKNESS ENUMERATION (CWE)-