CVE-2026-32952

go-ntlmssp NTLM challenges can panic on malformed payloads

Published Apr 24, 2026 CVSS 3.1 · 5.3 Medium EPSS 1.0% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-pjcq-xvwq-hhpj go-ntlmssp NTLM challenges can panic on malformed payloads
History
Type Values Removed Values Added
First Time appeared Microsoft
Microsoft go-ntlmssp
CPEs cpe:2.3:a:microsoft:go-ntlmssp:*:*:*:*:*:go:*:*
Vendors & Products Microsoft
Microsoft go-ntlmssp
Type Values Removed Values Added
First Time appeared Azure
Azure go-ntlmssp
Vendors & Products Azure
Azure go-ntlmssp
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title go-ntlmssp NTLM challenges can panic on malformed payloads
Weaknesses CWE-190
References
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Apr 24, 2026, 4:29 PM
Reserved
Mar 17, 2026, 12:05 AM
Status
Analyzed
Published
Apr 24, 2026, 3:16 AM
Modified
Oct 26, 2026, 9:10 PM
Severity
Moderate
Public date
Apr 24, 2026, 1:46 AM