CVE-2026-13608 Affecting curl package, versions <8.22.0-r0


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.48% (39th percentile)

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  • Snyk IDSNYK-ALPINE323-CURL-19533372
  • published5 Sept 2026
  • disclosed6 Sept 2026

Introduced: 5 Sep 2026

CVE-2026-13608  (opens in a new tab)

How to fix?

Upgrade Alpine:3.23 curl to version 8.22.0-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream curl package and not the curl package as distributed by Alpine. See How to fix? for Alpine:3.23 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1