CVE-2026-32952

MEDIUM

go-ntlmssp NTLM challenges can panic on malformed payloads

Title source: cna

Description

go-ntlmssp is a Go package that provides NTLM/Negotiate authentication over HTTP. Prior to version 0.1.1, a malicious NTLM challenge message can causes an slice out of bounds panic, which can crash any Go process using `ntlmssp.Negotiator` as an HTTP transport. Version 0.1.1 patches the issue.

References (2)

Core 2

Core References

X_Refsource_Confirm x_refsource_confirm

https://github.com/Azure/go-ntlmssp/security/advisories/GHSA-pjcq-xvwq-hhpj

X_Refsource_Misc x_refsource_misc

https://github.com/Azure/go-ntlmssp/releases/tag/v0.1.1

Scores

CVSS v3 5.3

EPSS 0.0103

EPSS Percentile 59.0%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-190

Status published

Products (3)

Azure/go-ntlmssp 0 - 0.1.1Go

Azure/go-ntlmssp < 0.1.1

microsoft/go-ntlmssp < 0.1.1

Published Apr 24, 2026

Tracked Since Apr 24, 2026