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Microsoft Security Response CenterCVE-2026-2369

Libsoup: libsoup: buffer overread due to integer underflow when handling zero-length resources

Mariner

Read the vendor bulletin Get alerts for cbl2 libsoup 3.0.4-12 on CBL Mariner
6.5CVSS out of 10Medium severity
Scope

What the vendor says is affected

  • cbl2 libsoup 3.0.4-12 on CBL Mariner 2.0
  • azl3 libsoup 3.4.4-12 on Azure Linux 3.0
  • azl3 libsoup 3.4.4-14 on Azure Linux 3.0
  • cbl2 libsoup 3.0.4-13 on CBL Mariner 2.0

Versions the vendor lists as fixed

  • 3.4.4-14
  • 3.0.4-14
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.

  4. Confirmed at the source

    Our collector saw this advisory during a later source check.

Vulnerabilities

CVEs named in this advisory

CVE-2026-2369View CVSS, KEV, EPSS, and threat context
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