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CVE-2026-32952

go-ntlmssp NTLM challenges can panic on malformed payloads

Published: Apr 24, 2026Updated: Apr 24, 2026 Sources: CVE List NVD
NVD MITRE
5.3CVSS
MEDIUM

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.

EPSS Score
N/A
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:NA:L
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:LAvailability
Low

Weaknesses

CWE-190

Affected Products

go-ntlmssp
Azure

Attack Graph

Products CVE Techniques Tactics

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Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

MITRE ATT&CK

1 technique
Initial Access
View detailed technique mapping

References

https://github.com/Azure/go-ntlmssp/releases/tag/v0.1.1
github.com
https://github.com/Azure/go-ntlmssp/security/advisories/GHSA-pjcq-xvwq-hhpj
github.com

Timeline

Published
Apr 24, 2026
Last Updated
Apr 24, 2026

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