OSV-2026-981
Heap-buffer-overflow in std::__1::__function::__func<grk::FileFormatJP2Decompress::FileFormatJP2Decompre
No scoreFix available
OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=527773834
Crash type: Heap-buffer-overflow WRITE 4
Crash state:
std::__1::__function::__func<grk::FileFormatJP2Decompress::FileFormatJP2Decompre
std::__1::__function::__func<grk::CodeStreamDecompress::postMultiTile
grk::CodeStreamDecompress::wait
What each source reports
OSV No score
Heap-buffer-overflow in std::__1::__function::__func<grk::FileFormatJP2Decompress::FileFormatJP2Decompre
OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=527773834
Crash type: Heap-buffer-overflow WRITE 4
Crash state:
std::__1::__function::__func<grk::FileFormatJP2Decompress::FileFormatJP2Decompre
std::__1::__function::__func<grk::CodeStreamDecompress::postMultiTile
grk::CodeStreamDecompress::wait
- Record
OSV-2026-981- Updated
- 2026-11-02
Affected packages
| Package | Affected | Fixed |
|---|---|---|
grokOSS-Fuzz |
Listed versions, plus commit ranges v20.3.5v20.3.6 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
OSV-2026-981 is a vulnerability with no CVSS score yet in grok, published June 27, 2026. No source lists public exploit code. A source reports a fix.