PyCryptodome and pycryptodomex side-channel leakage for OAEP decryption
PyCryptodome and pycryptodomex before 3.19.1 allow side-channel leakage for OAEP decryption, exploitable for a Manger attack.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Python (PyPI) | pycryptodome | < 3.19.1 | 3.19.1 |
| Python (PyPI) | pycryptodomex | < 3.19.1 | 3.19.1 |
References
- https://github.com/Legrandin/pycryptodome/blob/master/Changelog.rst
- https://pypi.org/project/pycryptodomex/#history
- https://nvd.nist.gov/vuln/detail/CVE-2023-52323
- https://github.com/Legrandin/pycryptodome/commit/0deea1bfe1489e8c80d2053bbb06a1aa0b181ebd
- https://github.com/Legrandin/pycryptodome
- https://github.com/pypa/advisory-database/tree/main/vulns/pycryptodomex/PYSEC-2024-3.yaml
- https://pypi.org/project/pycryptodome
- https://github.com/advisories/GHSA-j225-cvw7-qrx7
- CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N- Weakness (CWE)
CWE-203- Platform
- Python (PyPI)
- Package
pycryptodome, pycryptodomex- Disclosed
- 05.01.2024
- Updated
- 11.10.2026 15:17
Sources and licenses
OSV / GitHub Advisory Database - PYSEC-2024-3 - PyPA Advisory Database; CC BY 4.0
OSV / GitHub Advisory Database - PYSEC-2026-1811 - PyPA Advisory Database; CC BY 4.0
OSV / GitHub Advisory Database - GHSA-j225-cvw7-qrx7 - CC BY 4.0
Vulnerability history: pycryptodomex
All published vulnerabilities of this package (Python (PyPI)), newest first. Shows whether this is a one-off slip or a package that needs watching.
This is the only known vulnerability of this package.
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