OSV-2026-646

See a problem?

Import Source

https://github.com/google/oss-fuzz-vulns/blob/main/vulns/sentencepiece/OSV-2026-646.yaml

JSON Data

https://api.osv.dev/v1/vulns/OSV-2026-646

Published

2026-04-29T00:04:02.164830Z

Modified

2026-04-29T00:04:02.165140Z

Summary

Heap-buffer-overflow in sentencepiece::unigram::Model::EncodeOptimized

Details

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=507169860

Crash type: Heap-buffer-overflow READ 8
Crash state:
sentencepiece::unigram::Model::EncodeOptimized
sentencepiece::unigram::Model::Encode
sentencepiece::SentencePieceProcessor::Encode

References

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=507169860

Affected packages

OSS-Fuzz / sentencepiece

Package

Name: sentencepiece
Purl: pkg:generic/sentencepiece

Affected ranges

Type: GIT
Repo: https://github.com/google/sentencepiece.git
Events: Introduced

ea83729ca83c4696a775d3d1e8a03e3bd4fa8d97

Fixed

eb3ba49278fd10e5ae7b1d71c87f50e5a842f541

Ecosystem specific

{
    "severity": "MEDIUM"
}

Database specific

fixed_range

"c1f97156bbd3b3ac8346f0b738b87f4e60fb857c:eb3ba49278fd10e5ae7b1d71c87f50e5a842f541"

source

"https://github.com/google/oss-fuzz-vulns/blob/main/vulns/sentencepiece/OSV-2026-646.yaml"