HOMEVULNERABILITIESCVE-2026-32836
MEDIUM

CVE-2026-32836

CWE-789Published: March 17, 2026· Updated: Mar 20, 2026

5.5
CVSS v3.1
EPSS:0.01%probability of exploitation in 30 daysPercentile:2.5th

Official Description

dr_libs dr_flac.h version 0.13.3 and earlier 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.

NVD Source

Technical Analysis

CVE-2026-32836 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 5.5.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected Vendors & Products

mackron1 product
dr libs
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://github.com/mackron/dr_libs/issues/298
ADVISORYhttps://www.vulncheck.com/advisories/mackron-dr-libs-excessive-memory-allocation-in-picture-metadata-parsing

All References (2)

→
https://github.com/mackron/dr_libs/issues/298Exploit · Issue Tracking · Mitigation · Vendor Advisory
→
https://www.vulncheck.com/advisories/mackron-dr-libs-excessive-memory-allocation-in-picture-metadata-parsingThird Party Advisory

Quick Facts

CVE IDCVE-2026-32836
CVSS Score5.5 / 10
SeverityMEDIUM
WeaknessCWE-789
CISA KEVNo
EPSS (30d)0.01%
Affected1 vendor
PublishedMar 17, 2026

Related CVEs (CWE-789)

CVE-2026-28253
8.7
CVE-2026-20048
7.7
CVE-2021-47971
7.5
CVE-2026-39312
7.5
CVE-2021-47969
7.5
CVE-2026-8485
7.5

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2026-32836 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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