CVE-2026-13608

Published: Sep 6, 2026Modified: Sep 15, 2026

7.4

Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Exploitability: 2.2 / Impact: 5.2

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

Description

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.

Affected (1)

Products: Haxx: Curl

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Haxx Curl	7.82.0 ≤ version < 8.22.0

Related CWEs

Improper Restriction of Communication Channel to Intended Endpoints

The product establishes a communication channel to (or from) an endpoint for privileged or protected operations, but it does not properly ensure that it is communicating with the correct endpoint.

References (4)

https://curl.se/docs/CVE-2026-13608.html

Source: 2499f714-1537-4658-8207-48ae4bb9eae9

PatchVendor Advisory

https://curl.se/docs/CVE-2026-13608.json

Source: 2499f714-1537-4658-8207-48ae4bb9eae9

Vendor Advisory

https://hackerone.com/reports/3822248

Source: 2499f714-1537-4658-8207-48ae4bb9eae9

ExploitThird Party Advisory

https://hackerone.com/reports/3822248

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

ExploitThird Party Advisory

Timeline

No history available yet.