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Microsoft Security Response CenterCVE-2026-39979

jq: Out-of-Bounds Read in jv_parse_sized() Error Formatting for Non-NUL-Terminated Counted Buffers

Mariner

Read the vendor bulletin Get alerts for cbl2 jq 1.6-5 on CBL Mariner
MediumCVSS not listedMedium severity
Scope

What the vendor says is affected

  • cbl2 jq 1.6-5 on CBL Mariner 2.0
  • azl3 jq 1.7.1-4 on Azure Linux 3.0

Versions the vendor lists as fixed

  • 1.6-6
  • 1.7.1-5
Next step

What the vendor recommends

CBL-Mariner Releases

Review the complete instructions on the vendor's site
Timeline

When this advisory changed

  1. Published by Microsoft Security Response Center

    The publication date reported by the vendor.

  2. Updated by Microsoft Security Response Center

    The vendor changed the advisory after it was first published.

  3. Added to SecurityAlert

    We collected the advisory from the official source.

Vulnerabilities

CVEs named in this advisory

CVE-2026-39979View CVSS, KEV, EPSS, and threat context
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