PyPI/cbor2 CVE-2025-64076: high 7.5, EPSS 0.49%
Multiple vulnerabilities exist in cbor2 through version 5.7.0 in the decode_definite_long_string() function of the C extension decoder (source/decoder.c): (1) Integer Underflow Leading to Out-of-Bound
Action: Upgrade cbor2 to 5.7.1 or later.
pip install cbor2==5.7.1Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 5.7.1 | - |
Fixed versions
| 5.7.1 |
Sources
- osv: PYSEC-2025-238
- https://github.com/agronholm/cbor2/issues/264
- https://github.com/agronholm/cbor2/commit/851473490281f82d82560b2368284ef33cf6e8f9
- https://github.com/agronholm/cbor2/pull/265
- https://github.com/advisories/GHSA-9q9c-vjxh-p795
CVE-2025-64076 · published · modified · JSON