OSV-2026-1281

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Import Source
https://github.com/google/oss-fuzz-vulns/blob/main/vulns/md4c/OSV-2026-1281.yaml
JSON Data
https://api.osv.dev/v1/vulns/OSV-2026-1281
Published
2026-09-15T00:14:21Z
Modified
2026-09-15T00:14:21Z
Summary
Heap-buffer-overflow in md_decode_utf8__
Details

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=560854538

Crash type: Heap-buffer-overflow READ 1
Crash state:
md_decode_utf8__
md_label_hash
md_lookup_label_hashtable
References

Affected packages

OSS-Fuzz / md4c

Package

Name
md4c
Purl
pkg:generic/md4c

Affected ranges

Type
GIT
Repo
https://github.com/mity/md4c
Events
Introduced
f7f9c57a6375e7303fae3af72e92edfdb4a70c66
Fixed
60965ab9ab0e0b69a091d493631feffd09a8f908

Ecosystem specific 

{
    "severity": "HIGH"
}

Database specific

fixed_range 
"fb83eb2bedcf730bc721ab91b07c80d011cbe38f:60965ab9ab0e0b69a091d493631feffd09a8f908"
introduced_range 
"00788b157b2b6ef3efd8659b66f6521229f382d7:10fa4f4410a58cdd03cb4de1ade6efbbe7de59a4"
source 
"https://github.com/google/oss-fuzz-vulns/blob/main/vulns/md4c/OSV-2026-1281.yaml"