CVE Explorer

CVE-2026-32836

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.

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:ac51289ed99ec2dd4692d03802995f85792fcabbb32c7747443f5b7c59814bf9

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Preserved source conflicts

No provider value was silently selected as the winner.

cvss · 2 assertions

{"metric":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":6.2,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:115298347ddf93c15f50dcfa6283b6e151fe07727fc1feccab47471a6dd4fadc · sha256:b6cf558791bee06a… · /containers/cna/metrics/1/cvssV3_1

{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"LOCAL","baseScore":6.9,"baseSeverity":"MEDIUM","exploitMaturity":"NOT_DEFINED","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"…

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:115298347ddf93c15f50dcfa6283b6e151fe07727fc1feccab47471a6dd4fadc · sha256:b6cf558791bee06a… · /containers/cna/metrics/0/cvssV4_0

Affected products and versions

1 source assertion

{"defaultStatus":"unknown","modules":["dr_flac.h"],"packageURL":"pkg:github/mackron/dr_libs","product":"dr_libs dr_flac.h","repo":"https://github.com/mackron/dr_libs/blob/master/dr_flac.h","vendor":"mackron","versions":[{"lessThanOrEqual":"0.13.3","status":"affected","version":"0","versionType":"semver"},{"status":"unaffected","version":"fefced4a64adfb1a68a2d31d882366e56096dee8","versionType":"git"},{"status":"unaffected","version":"4f5a4cd3b57564d969443c580c75857e039f100a","versionType":"git"},{"status":"unaffected","version":"663239a3d0460c33bd5b6e5166edcb404e3df676","versionType":"git"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:115298347ddf93c15f50dcfa6283b6e151fe07727fc1feccab47471a6dd4fadc · sha256:b6cf558791bee06a… · /containers/cna/affected/0

Provider-owned CVSS observations

2 source assertions

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:115298347ddf93c15f50dcfa6283b6e151fe07727fc1feccab47471a6dd4fadc · sha256:b6cf558791bee06a… · /containers/cna/metrics/1/cvssV3_1

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:115298347ddf93c15f50dcfa6283b6e151fe07727fc1feccab47471a6dd4fadc · sha256:b6cf558791bee06a… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion

{"cweId":"CWE-789","description":"CWE-789 Memory allocation with excessive size value","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:115298347ddf93c15f50dcfa6283b6e151fe07727fc1feccab47471a6dd4fadc · sha256:b6cf558791bee06a… · /containers/cna/problemTypes/0/descriptions/0

Source references

5 source assertions

{"tags":["patch"],"url":"https://github.com/mackron/dr_libs/commit/4f5a4cd3b57564d969443c580c75857e039f100a"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:115298347ddf93c15f50dcfa6283b6e151fe07727fc1feccab47471a6dd4fadc · sha256:b6cf558791bee06a… · /containers/cna/references/2

{"tags":["patch"],"url":"https://github.com/mackron/dr_libs/commit/663239a3d0460c33bd5b6e5166edcb404e3df676"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:115298347ddf93c15f50dcfa6283b6e151fe07727fc1feccab47471a6dd4fadc · sha256:b6cf558791bee06a… · /containers/cna/references/3

{"tags":["patch"],"url":"https://github.com/mackron/dr_libs/commit/fefced4a64adfb1a68a2d31d882366e56096dee8"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:115298347ddf93c15f50dcfa6283b6e151fe07727fc1feccab47471a6dd4fadc · sha256:b6cf558791bee06a… · /containers/cna/references/1

{"tags":["issue-tracking"],"url":"https://github.com/mackron/dr_libs/issues/298"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:115298347ddf93c15f50dcfa6283b6e151fe07727fc1feccab47471a6dd4fadc · sha256:b6cf558791bee06a… · /containers/cna/references/0

{"tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/mackron-dr-libs-excessive-memory-allocation-in-picture-metadata-parsing"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:115298347ddf93c15f50dcfa6283b6e151fe07727fc1feccab47471a6dd4fadc · sha256:b6cf558791bee06a… · /containers/cna/references/4

Attribution and limitations

CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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