DEBIAN-CVE-2026-47770
- Source
- https://security-tracker.debian.org/tracker/CVE-2026-47770
- Import Source
- https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-47770.json
- JSON Data
- https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-47770
- Upstream
- Published
- 2026-06-25T18:16:38Z
- Modified
- 2026-09-14T17:03:15Z
- Severity
-
- 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- [none]
- Details
-
jq is a command-line JSON processor. Prior to 1.8.2, comparing two sufficiently deeply nested arrays with the == operator exhausts the C stack on jq's ordinary command-line surface, resulting in denial of service via stack exhaustion (uncontrolled recursion). The crash occurs in jq's recursive structural comparison code, with the recursion repeating through jvp_array_equal() and jv_equal() in src/jv.c when comparing deeply nested arrays; a nearby sort comparator path through jv_cmp() in src/jv_aux.c overflows the stack at a larger nesting depth from the same missing recursion guard. Anyone running jq comparisons on attacker-controlled deeply nested JSON values, or embedding jq in a context where untrusted data can reach the == comparison path, is affected. This vulnerability is fixed in 1.8.2.
- References
Affected packages
Debian:12 / jq
Package
- Name
- jq
- Purl
- pkg:deb/debian/jq?arch=source&distro=bookworm
Debian:13 / jq
Package
- Name
- jq
- Purl
- pkg:deb/debian/jq?arch=source&distro=trixie
Debian:14 / jq
Package
- Name
- jq
- Purl
- pkg:deb/debian/jq?arch=source&distro=forky