CVE-2026-13608

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    CVE-2026-13608

    Published: 6 Sept 2026Last Modified: 17 Sept 2026

    Summary: OpenLDAP SASL authentication bypass

    Details: A flaw in the libcurl SASL negotiation for LDAP authentication allows an incomplete handshake sequence to be misinterpreted as a successful cryptographic verification. An attacker executing a Man-in-the-Middle (MITM) attack can inject a premature or shortcut response that bypasses complete peer validation.

    References: https://curl.se/docs/CVE-2026-13608.html, https://curl.se/docs/CVE-2026-13608.json, https://hackerone.com/reports/3822248, https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/13xxx/CVE-2026-13608.json, https://nvd.nist.gov/vuln/detail/CVE-2026-13608, https://github.com/curl/curl.git

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 64db5c575d9c5536bd273a890f50777ad1ca7c13
    Fixed -01346829096c61b372692f6dc43ffa778c6caccd

    Affected versions

    7.82.0

    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-2026-13608 | CVE-DB