CLEANSTART-2026-PC71052

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    CLEANSTART-2026-PC71052

    Published: 31 Oct 2026Last Modified: 31 Oct 2026
    Upstream:
    CVE-2026-41851

    Summary: Applications which accept user-supplied Spring Expression Language (SpEL) expressions may be vulnerable to a Denial of Service (DoS) attack if the evaluation of a SpEL expression triggers unbounded...

    Details: Security vulnerability affects the apache-nifi package. Applications which accept user-supplied Spring Expression Language (SpEL) expressions may be vulnerable to a Denial of Service (DoS) attack if the evaluation of a SpEL expression triggers unbounded cache growth.

    References: https://github.com/cleanstart-dev/cleanstart-security-advisories/tree/main/advisories/2026/CLEANSTART-2026-PC71052.json, https://osv.dev/vulnerability/CVE-2026-41851, https://nvd.nist.gov/vuln/detail/CVE-2026-41851

    Affected packages

    Package

    Name: apache-nifi

    Purl: pkg:apk/cleanstart/apache-nifi

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -2.9.0-r3

    Affected versions

    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
    CLEANSTART-2026-PC71052 | CVE-DB