[UPDATE] [medium] jq: Vulnerability allows denial of service
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.
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Details
Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-2083
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Low exploitation riskCVE-2026-498390.17% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 6% of all scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-49839 | coverage & exploitation status | NVD · CVE.org |
Same CVEs, other sources
How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.
Recent advisories for jq
A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.
- high[UPDATE] [high] Red Hat Hardened Images RPMs (jq and pyOpenSSL): Multiple vulnerabilitiescert-bund · 2026-07-09
- medium[UPDATE] [medium] jq: Multiple vulnerabilities allow Denial of Servicecert-bund · 2026-07-08
- medium[UPDATE] [medium] jq: Vulnerability allows denial of servicecert-bund · 2026-07-08
- medium[UPDATE] [medium] jq: Vulnerability allows unspecified attackcert-bund · 2026-07-02
- high[UPDATE] [high] jq: Multiple vulnerabilitiescert-bund · 2026-07-02
- medium[UPDATE] [medium] jq: Vulnerability allows bypassing security measurescert-bund · 2026-07-02
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