CVE-2026-54679
Multiple security issues were discovered in jq, a command-line JSON processor, which could result in denial of service or potentially the execution of arbitrary code when processing untrusted input. This update additionally addresses three issues for which no CVE has been assigned: GHSA-ggc9-rpv2-xgpm, GHSA-gvwx-xj9r-3frq and GHSA-gf4g-95wj-4q4r. Two changes in behaviour follow from the fixes above. An operation whose result would exceed the internal string length limit, such as repeating or escaping a very large string, now terminates with the error "String too long" instead of returning a truncated result. A comparison or containment check on a deeply nested value now reports an error rather than recursing until the stack is exhausted. Filters relying on the previous behaviour will report an error where they previously appeared to succeed. https://security-tracker.debian.org/tracker/DSA-6416-1
CSIRTS triage
- What
- A vulnerability allows an attacker to conduct an unspecified attack.
- Who is affected
- Deployments of jq are affected.
- Urgency
- Remediation is medium urgency due to the unspecified nature of the attack.
- Action
- Update to the latest version of jq.
AI-assisted analysis generated from the source advisory — verify against the original.
⚡ Watch CVE-2026-54679
Get an email if CVE-2026-54679 is added to CISA KEV, gains public exploit code, or a new advisory cites it — max one per day, one-click unsubscribe.
Exploitation outlook
- Low exploitation risk0.10% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 1% of all EPSS-scored CVEs.
Advisory coverage (3)
- medium[UPDATE] [medium] jq: Vulnerability allows unspecified attackcert-bund · 2026-08-10
- unknownDSA-6416-1 jq - security updatedebian · 2026-08-07
- mediumCVE-2026-54679: jq: potential integer overflow in jvp_string_appendmsrc · 2026-06-09
External references
Embed the live status
— this badge updates automatically when the KEV or exploit status changes. How to embed it →
[](https://www.csirts.com/cve/CVE-2026-54679)