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CVE-2026-13608

high CVSS 7.4 EPSS 0.5%

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.

Versions it affects

Software versions checked with the free lookup that CVE-2026-13608 applies to, and the release that fixes it where the sources name one.

curl 8.1.2 fixed in 8.14.2

At a glance

Severity
High
CVSS base score
7.4 out of 10
Known exploited
Not in CISA's catalogue of exploited vulnerabilities
EPSS
0.5% probability of exploitation in the next 30 days, higher than 40% of scored vulnerabilities
Weakness
CWE-923
Published
2026-09-06
NVD CVE.org

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