CVE-2023-26151

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    CVE-2023-26151

    Published: 3 Oct 2023Last Modified: 12 Aug 2026

    Summary:

    Details: Versions of the package asyncua before 0.9.96 are vulnerable to Denial of Service (DoS) such that an attacker can send a malformed packet and as a result, the server will enter into an infinite loop and consume excessive memory.

    References: https://gist.github.com/artfire52/1540b234350795e0ecb4d672608dbec8, https://github.com/FreeOpcUa/opcua-asyncio/releases/tag/v0.9.96, https://security.snyk.io/vuln/SNYK-PYTHON-ASYNCUA-5673709, https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/26xxx/CVE-2023-26151.json, https://nvd.nist.gov/vuln/detail/CVE-2023-26151, https://github.com/FreeOpcUa/opcua-asyncio/issues/1013, https://github.com/FreeOpcUa/opcua-asyncio/commit/f6603daa34a93a658f0e176cb0b9ee5a6643b262, https://github.com/FreeOpcUa/opcua-asyncio/pull/1039

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -c55447d865a6f9b9505bc538f3c56cf3a1421c60

    Affected versions

    v0.9.95
    v0.9.94
    v0.9.93
    v0.9.92
    v0.9.91
    v0.9.90
    v0.9.12
    v0.9.11
    v0.9.10
    v0.9.8
    v0.9.13

    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
    CVE-2023-26151 | CVE-DB