CVE-2021-26911

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    CVE-2021-26911

    Published: 17 Feb 2021Last Modified: 9 Jul 2026

    Summary:

    Details: core/imap/MCIMAPSession.cpp in Canary Mail before 3.22 has Missing SSL Certificate Validation for IMAP in STARTTLS mode.

    References: https://apps.apple.com/us/app/canary-mail/id1236045954, https://census-labs.com/news/category/advisories/, http://www.openwall.com/lists/oss-security/2021/02/17/3, https://github.com/canarymail/mailcore2/commit/45acb4efbcaa57a20ac5127dc976538671fce018, https://www.openwall.com/lists/oss-security/2021/02/17/3, https://census-labs.com/news/2021/02/17/canary-mail-app-missing-certificate-validation-check-on-imap-starttls/

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -45acb4efbcaa57a20ac5127dc976538671fce018

    Affected versions

    0.6.2
    0.6.1
    0.6

    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-2021-26911 | CVE-DB