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CVE-2026-32316CVE-2026-33947CVE-2026-33948CVE-2026-39956CVE-2026-39979CVE-2026-40164

USN-8202-2: jq vulnerabilities

USN-8202-1 fixed vulnerabilities in jq. This update provides the corresponding update to Ubuntu 26.04 LTS. Original advisory details: It was discovered that jq did not correctly handle certain string concatenations. An attacker could possibly use this issue to cause a denial of service or execute arbitrary code. (CVE-2026-32316) It was discovered that jq did not correctly handle recursion in certain circumstances. An attacker could possibly use this issue to cause a denial of service. (CVE-2026-

Tuesday, April 28, 2026UbuntuVulnios Threat Intelligence
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Vulnerability Snapshot

CVE-2026-32316 is rated CRITICAL โ€” exploitation is trivial or already observed in the wild and impact is severe. Patch immediately, not on the next maintenance window.

Executive Summary

USN-8202-1 fixed vulnerabilities in jq. This update provides the corresponding update to Ubuntu 26.04 LTS. Original advisory details: It was discovered that jq did not correctly handle certain string concatenations. An attacker could possibly use this issue to cause a denial of service or execute arbitrary code. (CVE-2026-32316) It was discovered that jq did not correctly handle recursion in certain circumstances. An attacker could possibly use this issue to cause a denial of service. (CVE-2026-

Source

How Vulnios Detects This

Vulnios scans for this vulnerability using Trivy and Grype for CVE matching against your container images and OS package manifests. Run a scan against your environment to see whether you are exposed; findings are linked back to the original CVE record so triage starts with the patch path already known.

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Frequently Asked Questions

What is CVE-2026-32316?

CVE-2026-32316 is a critical-severity vulnerability tracked under the Common Vulnerabilities and Exposures program. USN-8202-1 fixed vulnerabilities in jq. This update provides the corresponding update to Ubuntu 26.04 LTS. Original advisory details: It was discovered that jq did not correctly handle certain string

Am I affected?

Affected technology is listed in the Affected Products section above. If your asset inventory contains any of them, assume in-scope until you can prove otherwise.

How urgent is the response?

Critical: do not wait for your normal patch cycle. Verify exposure today, apply the vendor patch immediately, and add detection rules for any post-exploit indicators.

How do I remediate?

Apply the vendor patch listed in the upstream advisory linked under Sources. If the patch is not yet available, follow the vendor-supplied workaround (often a config flag or feature disable) and add detections for the published exploit pattern in your SIEM. Re-scan after the patch lands to confirm the finding clears.

Where can I track exploitation activity?

Watch CISA's Known Exploited Vulnerabilities catalog for CVE-2026-32316. Cross-reference with public exploit databases and your own SIEM/IDS for indicator-of-compromise patterns. Vulnios tracks KEV status automatically and surfaces it on the asset findings view.

How does Vulnios help with this?

Vulnios continuously cross-references your asset inventory against the live CVE feed (NVD, vendor advisories, CISA KEV, and curated OSINT). When a new CVE matches your environment, you get a prioritized finding with the severity, KEV status, exploit-prediction (EPSS), and a direct path to the vendor patch. You can start a free scan from the homepage.

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