OSV-2021-1809
Heap-buffer-overflow in ujson.cpython-38-x86_64-linux-gnu.so
No scoreFix available
OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=44973
Crash type: Heap-buffer-overflow WRITE 1
Crash state:
ujson.cpython-38-x86_64-linux-gnu.so
ujson.cpython-38-x86_64-linux-gnu.so
ujson.cpython-38-x86_64-linux-gnu.so
What each source reports
OSV No score
Heap-buffer-overflow in ujson.cpython-38-x86_64-linux-gnu.so
OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=44973
Crash type: Heap-buffer-overflow WRITE 1
Crash state:
ujson.cpython-38-x86_64-linux-gnu.so
ujson.cpython-38-x86_64-linux-gnu.so
ujson.cpython-38-x86_64-linux-gnu.so
- Record
OSV-2021-1809- Updated
- 2026-11-02
Affected packages
| Package | Affected | Fixed |
|---|---|---|
ujsonPyPI |
Listed versions, plus commit ranges 5.1.0 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
OSV-2021-1809 is a vulnerability with no CVSS score yet in ujson, published February 25, 2022. No source lists public exploit code. A source reports a fix.