CVE-2026-13608
Published:September 02, 2026
Updated:September 02, 2026
libcurl OpenLDAP SASL authentication bypass: an incomplete SASL handshake sequence can be misinterpreted as a successful cryptographic verification, allowing a man-in-the-middle to inject a premature response and bypass peer validation. Only affects ldap:// using the OpenLDAP backend; ldaps:// is unaffected. Affects curl 7.82.0 through 8.21.0, fixed in 8.22.0.
Affected Packages
libcurl (CONAN):
Affected version(s) >=7.82.0 <8.22.0Fix Suggestion:
Update to version 8.22.0https://github.com/curl/curl.git (GITHUB):
Affected version(s) >=curl-7_82_0 <curl-8_22_0Fix Suggestion:
Update to version curl-8_22_0Related Resources (2)
Do you need more information?
Contact UsCVSS v4
Base Score:
6.3
Attack Vector
NETWORK
Attack Complexity
HIGH
Attack Requirements
PRESENT
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
LOW
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
4.8
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Weakness Type (CWE)
Improper Restriction of Communication Channel to Intended Endpoints