OSV-2026-611

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Import Source
https://github.com/google/oss-fuzz-vulns/blob/main/vulns/matio/OSV-2026-611.yaml
JSON Data
https://api.osv.dev/v1/vulns/OSV-2026-611
Published
2026-04-22T00:09:09.767586Z
Modified
2026-04-22T00:09:09.767978Z
Summary
Heap-buffer-overflow in ParseOpaqueMetadata
Details

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=504617128

Crash type: Heap-buffer-overflow READ 4
Crash state:
ParseOpaqueMetadata
ReadOpaqueInfo5
Mat_VarReadNextInfo5
References

Affected packages

OSS-Fuzz / matio

Package

Name
matio
Purl
pkg:generic/matio

Affected ranges

Type
GIT
Repo
https://github.com/tbeu/matio.git
Events
Introduced
a0210352e032d2fd78a8b228bb602db4bf78e897
Fixed
070cd4b945e775f32cc4f090eb1808a78152b6b2

Ecosystem specific 

{
    "severity": "MEDIUM"
}

Database specific

introduced_range 
"017180a9f75724c7fe90378362ab68beaa2426f2:65dca5fb5430340b065431b3568d01985b45c5ee"
source 
"https://github.com/google/oss-fuzz-vulns/blob/main/vulns/matio/OSV-2026-611.yaml"