PYSEC-2026-1811

    Dashboard / Vulnerabilities / PYSEC-2026-1811

    PYSEC-2026-1811

    Published: 7 Jul 2026Last Modified: 7 Jul 2026

    Summary: PyCryptodome and pycryptodomex side-channel leakage for OAEP decryption

    Details: PyCryptodome and pycryptodomex before 3.19.1 allow side-channel leakage for OAEP decryption, exploitable for a Manger attack.

    References: https://nvd.nist.gov/vuln/detail/CVE-2023-52323, https://github.com/Legrandin/pycryptodome/commit/0deea1bfe1489e8c80d2053bbb06a1aa0b181ebd, https://github.com/Legrandin/pycryptodome, https://github.com/Legrandin/pycryptodome/blob/master/Changelog.rst, https://github.com/pypa/advisory-database/tree/main/vulns/pycryptodomex/PYSEC-2024-3.yaml, https://pypi.org/project/pycryptodomex/#history, https://pypi.org/project/pycryptodome, https://github.com/advisories/GHSA-j225-cvw7-qrx7

    Affected packages

    Package

    Name: pycryptodome

    Purl: pkg:pypi/pycryptodome

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -3.19.1

    Affected versions

    3.0

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    PYSEC-2026-1811 | CVE-DB