jq: Unbounded Recursion in jv_setpath(), jv_getpath() and delpaths_sorted()
Fix status by distribution
Fixed packages published by each distribution for this CVE
- Alpine Linux ALPINE-CVE-2026-33947 jq Fixed in: 1.8.2-r0
- BellSoft Alpaquita BELL-CVE-2026-33947 jq Fixed in: 1.8.1-r2
- Debian DEBIAN-CVE-2026-33947 jq Fixed in: 1.6-2.1+deb11u2
- Ubuntu UBUNTU-CVE-2026-33947 jq Fixed in: 1.3-1.1ubuntu1.1+esm4
Original description The description as published by the source.
jq is a command-line JSON processor. In versions 1.8.1 and below, functions jv_setpath(), jv_getpath(), and delpaths_sorted() in jq's src/jv_aux.c use unbounded recursion whose depth is controlled by the length of a caller-supplied path array, with no depth limit enforced. An attacker can supply a JSON document containing a flat array of ~65,000 integers (~200 KB) that, when used as a path argument by a trusted jq filter, exhausts the C call stack and crashes the process with a segmentation fault (SIGSEGV). This bypass works because the existing MAX_PARSING_DEPTH (10,000) limit only protects the JSON parser, not runtime path operations where arrays can be programmatically constructed to arbitrary lengths. The impact is denial of service (unrecoverable crash) affecting any application or service that processes untrusted JSON input through jq's setpath, getpath, or delpaths builtins. This issue has been addressed in commit fb59f1491058d58bdc3e8dd28f1773d1ac690a1f.
Source: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV
References
- advisory github.com
- advisory github.com
- advisory nvd.nist.gov
- patch github.com
- web openwall.com