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TI-2026-25299 Aliases CVE-2026-32836GHSA-6mgc-4427-8p4x

mackron / dr_libs dr_flac.h Excessive Memory Allocation in PICTURE Metadata Parsing

Priority LOW 30CWE-789Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-789.

Summary

dr_libs dr_flac.h version 0.13.3 and earlier (fixed in commits fefced4, 4f5a4cd, and 663239a) contain an uncontrolled memory allocation vulnerability in drflac__read_and_decode_metadata() that allows attackers to trigger excessive memory allocation by supplying crafted PICTURE metadata blocks. Attackers can exploit attacker-controlled mimeLength and descriptionLength fields to cause denial of service through memory exhaustion when processing FLAC streams with metadata callbacks.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00195 9th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
mackrondr_libs dr_flac.hup to 0.13.3—Patch availableCNA
  • dr_libs dr_flac.h Vendormackron Affected up to 0.13.3 Fixed in — Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:mackron:dr_libs:*:*:*:*:*:*:*:*up to 0.13.3Vulnerablemackron
  • cpe:2.3:a:mackron:dr_libs:*:*:*:*:*:*:*:* Versions up to 0.13.3 Vulnerable ·mackron

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-32836
  2. 2026-10-03 Alias added: GHSA-6mgc-4427-8p4x

References

Exploit 1

Patch 3

  • TI-2026-23180 mackron / dr_libs dr_wav.h Heap Buffer Overflow via WAV File CVSS 4.0MEDIUM 6.8

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences