CVE-2026-49839
A remote, anonymous attacker can exploit a vulnerability in jq to conduct a denial of service attack.
CSIRTS triage
- What
- A remote, anonymous attacker can exploit a vulnerability in jq to conduct a denial of service attack.
- Who is affected
- Deployments of jq are affected.
- Urgency
- Remediation is medium urgency due to the potential for denial of service.
- Action
- Update jq to the latest version to resolve this issue.
AI-assisted analysis generated from the source advisory — verify against the original.
⚡ Watch CVE-2026-49839
Get an email if CVE-2026-49839 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 risk0.17% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 6% of all EPSS-scored CVEs.
Advisory coverage (2)
- medium[UPDATE] [medium] jq: Vulnerability allows denial of servicecert-bund · 2026-07-02
- highCVE-2026-49839: jq --rawfile invalid-state reuse after String too long causes heap-buffer-overflowmsrc · 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-2026-49839)