ALPINE-CVE-2021-29157

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    ALPINE-CVE-2021-29157

    Published: 28 Jun 2021Last Modified: 27 Aug 2026
    Upstream:
    CVE-2021-29157

    Summary:

    Details: Dovecot before 2.3.15 allows ../ Path Traversal. An attacker with access to the local filesystem can trick OAuth2 authentication into using an HS256 validation key from an attacker-controlled location. This occurs during use of local JWT validation with the posix fs driver.

    References: https://security.alpinelinux.org/vuln/CVE-2021-29157

    Affected packages

    Package

    Name: dovecot

    Purl: pkg:apk/alpine/dovecot?arch=source

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 2.3.11
    Fixed -2.3.15-r0

    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
    ALPINE-CVE-2021-29157 | CVE-DB