CVE-2026-40612
MEDIUMCVSS 5.5/10EPSS 0.16%
Last modified
CVE-2026-40612 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. jq is a command-line JSON processor. In 1.8.1 and earlier, jv_contains recurses into nested arrays/objects with no depth limit. EPSS estimates a 0.16% chance of exploitation in the next 30 days.
Description
jq is a command-line JSON processor. In 1.8.1 and earlier, jv_contains recurses into nested arrays/objects with no depth limit. With a sufficiently nested input structure (built programmatically with reduce, since the JSON parser caps at depth 10000), the C stack is exhausted.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Jqlang | Jq | <= 1.8.1 |
References
- https://github.com/jqlang/jq/security/advisories/GHSA-r7m6-x9c7-h69jExploit, Mitigation, Vendor Advisory
- https://github.com/jqlang/jq/security/advisories/GHSA-r7m6-x9c7-h69jExploit, Mitigation, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-40612?
jq is a command-line JSON processor. In 1.8.1 and earlier, jv_contains recurses into nested arrays/objects with no depth limit. With a sufficiently nested input structure (built programmatically with reduce, since the JSON parser caps at depth 10000), the C stack is exhausted.
How severe is CVE-2026-40612?
CVE-2026-40612 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.16% probability of exploitation in the next 30 days.
How do I fix CVE-2026-40612?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-40607Mantis Bug Tracker (MantisBT) is an open source issue tracke…7.5
- CVE-2026-40608Next AI Draw.io is a next.js web application that integrates…5.5
- CVE-2026-40609Rejected reason: This CVE is a duplicate of another CVE.
- CVE-2026-4061The Geo Mashup plugin for WordPress is vulnerable to Time-Ba…7.5
- CVE-2026-40610BentoML is a Python library for building online serving syst…5.5
- CVE-2026-40611Let's Encrypt client and ACME library written in Go (Lego). …8.8
- CVE-2026-40613Coturn is a free open source implementation of TURN and STUN…7.5
- CVE-2026-40614PJSIP is a free and open source multimedia communication lib…8.8
- CVE-2026-40618When an SSL profile is configured on a virtual server on BIG…8.7
- CVE-2026-40619A high security vulnerability affecting Security Center main…7.8
- CVE-2026-4062The Geo Mashup plugin for WordPress is vulnerable to Time-Ba…7.5
- CVE-2026-40620A vulnerability in SenseLive X3050’s embedded management ser…9.8
Are you affected by CVE-2026-40612?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST