OSV-2026-623

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Import Source
https://github.com/google/oss-fuzz-vulns/blob/main/vulns/matio/OSV-2026-623.yaml
JSON Data
https://api.test.osv.dev/v1/vulns/OSV-2026-623
Published
2026-04-25T00:20:05.313883Z
Modified
2026-04-29T14:45:26.367607Z
Summary
Use-of-uninitialized-value in Mat_PrintNumber
Details

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=505903317

Crash type: Use-of-uninitialized-value
Crash state:
Mat_PrintNumber
Mat_PrintData
Mat_VarPrint
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
95ef616e596c15a72abed28ab0b3f6b72bd6e691
Fixed
658240b9b536f6926e5ff4500968cf024a972e1f
Fixed
2f89a7e9ebe198f16b62048dd02cd6de5dc47573

Affected versions

v1.*
v1.5.30

Ecosystem specific 

{
    "severity": "MEDIUM"
}

Database specific

source 
"https://github.com/google/oss-fuzz-vulns/blob/main/vulns/matio/OSV-2026-623.yaml"
fixed_range 
"5df1d83e0f81b8e82073d34302c7714ea3a8eeb0:2f89a7e9ebe198f16b62048dd02cd6de5dc47573"