CLEANSTART-2026-NB25503

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    CLEANSTART-2026-NB25503

    Published: 30 Oct 2026Last Modified: 31 Oct 2026
    Upstream:
    CVE-2026-5199

    Summary: writer role user in an attacker-controlled namespace could signal, delete, and reset workflows or activities in a victim namespace on the same cluster

    Details: CVE-2026-5199 affects multiple packages. A writer role user in an attacker-controlled namespace could signal, delete, and reset workflows or activities in a victim namespace on the same cluster. See references for individual vulnerability details.

    References: https://github.com/cleanstart-dev/cleanstart-security-advisories/tree/main/advisories/2026/CLEANSTART-2026-NB25503.json, https://osv.dev/vulnerability/CVE-2026-5199, https://nvd.nist.gov/vuln/detail/CVE-2026-5199

    Affected packages

    Package

    Name: temporal-server

    Purl: pkg:apk/cleanstart/temporal-server

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1.31.1-r1

    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-NB25503 | CVE-DB