OSV-2026-727

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Import Source
https://github.com/google/oss-fuzz-vulns/blob/main/vulns/md4c/OSV-2026-727.yaml
JSON Data
https://api.osv.dev/v1/vulns/OSV-2026-727
Published
2026-05-14T00:05:08.265509Z
Modified
2026-05-14T00:05:08.265818Z
Summary
Global-buffer-overflow in md_start_new_block
Details

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=512429152

Crash type: Global-buffer-overflow READ 4
Crash state:
md_start_new_block
md_parse
md_html
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
ed89abed05845225cdfe2c94a49ec13a37b7578f
Fixed
5f9b246fd01e90afa8075c1b6c2904ea44375fe3

Ecosystem specific 

{
    "severity": null
}

Database specific

fixed_range 
"4f0b252c8e8952d53156949777ebfe3f9355def3:5f9b246fd01e90afa8075c1b6c2904ea44375fe3"
introduced_range 
"07712a59a4cdb66170d608125ce3a191ffa3d4c7:345666722d965072c2c94bbb08b2ae91385c1592"
source 
"https://github.com/google/oss-fuzz-vulns/blob/main/vulns/md4c/OSV-2026-727.yaml"