[UPDATE] [medium] jq: Vulnerability allows denial of service

mediumCVE-2026-43894

A local attacker can exploit a vulnerability in jq to conduct a denial of service attack.

CSIRTS triage

vendor: jq product: jq Denial of service

What: A local attacker can exploit a vulnerability in jq to conduct a denial of service attack.
Who is affected: Local 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 jq

Get an email when a new jq advisory drops — max one per day, one-click unsubscribe.

Details

Source: CERT-Bund (BSI) Security Advisories (DE · national-cert · site)
Severity: medium
Published: 2026-08-10
Exploitation: Not in CISA KEV at last sync
Language: Machine-translated to English — verify against the original

Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-1384

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-2026-438940.16% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 5% of all EPSS-scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-43894	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

unknownDSA-6416-1 jq - security updatedebian

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.

medium[UPDATE] [medium] jq: Vulnerability allows denial of servicecert-bund · 2026-08-10
medium[UPDATE] [medium] jq: Vulnerability allows unspecified attackcert-bund · 2026-08-10
medium[UPDATE] [medium] jq: Multiple vulnerabilities allow Denial of Servicecert-bund · 2026-08-10
high[UPDATE] [high] jq: Multiple vulnerabilitiescert-bund · 2026-08-10
medium[UPDATE] [medium] jq: Vulnerability allows bypassing security measurescert-bund · 2026-08-10
medium[UPDATE] [medium] jq: Vulnerability allows denial of servicecert-bund · 2026-08-10