Vulnerabilities in pkg:golang/github.com/Azure/go-ntlmssp

PACKAGE
Advisory Identifier: GHSA-pjcq-xvwq-hhpj
Share
Advisory Summary

CVE-2026-32952 is a MODERATE (CVSS 5.3) go-ntlmssp ntlm challenges can panic vulnerability (CWE-190: Integer Overflow or Wraparound) affecting Github.com/Azure/go ntlmssp libraries in the Go ecosystem. The issue involves go-ntlmssp ntlm challenges can panic on malformed payloads. Remediation is available by upgrading affected packages to version 0.1.1.

1 Known Advisory Record(s)
Package Vulnerability Intelligence

pkg:golang/github.com/Azure/go-ntlmssp

1 Known Advisory Record(s)

Vulnerability advisories affecting package pkg:golang/github.com/Azure/go-ntlmssp. Select an advisory below to view technical details or fixes.

Advisory ID CVE / NVD Severity Summary
GHSA-pjcq-xvwq-hhpj CVE-2026-32952 MODERATE go-ntlmssp NTLM challenges can panic on malformed payloads

CVE-2026-32952 at a Glance

CVE Identifier CVE-2026-32952
GHSA Identifier GHSA-pjcq-xvwq-hhpj
Severity MODERATE
CVSS v3.1 Base Score 5.3
CWE Classification CWE-190: Integer Overflow or Wraparound
Affected Product Github.com/Azure/go ntlmssp
Package Ecosystem Go
Published Date
Last Updated

Security Impact

CVSS: 5.3

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality None (C:N)
Integrity None (I:N)
Availability Low (A:L)

How to Fix CVE-2026-32952

To remediate this vulnerability, upgrade all affected Github.com/Azure/go ntlmssp dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

github.com/Azure/go-ntlmssp fixed: 0.1.1 
Upgrade github.com/Azure/go-ntlmssp to 0.1.1
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for github.com/Azure/go-ntlmssp

How to Check if You Are Affected

To determine whether your application is affected by CVE-2026-32952, inspect your project dependencies for Github.com/Azure/go ntlmssp:

inspect dependencies for github.com/Azure/go-ntlmssp

Analyze the terminal output to locate any version of Github.com/Azure/go ntlmssp in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 0.1.1), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-190: Integer Overflow or Wraparound, where the product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. this occurs when an integer value is incremented to a value that is too large to store in the associated representation. when this occurs, the value may become a very small or negative number. In Github.com/Azure/go ntlmssp, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

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.

CVE-2026-32952 Affected Github.com/Azure/go ntlmssp Versions

1 component(s)
Fixed Versions:
0.1.1
Product / Package Ecosystem Affected Versions Fixed Version
github.com/Azure/go-ntlmssp
golang/github.com/Azure/go-ntlmssp
Go
< 0.1.1
0.1.1

References

GitHub Advisory / Wiki ADVISORY
https://github.com/Azure/go-ntlmssp/security/advisories/GHSA-pjcq-xvwq-hhpj
NVD — CVE-2026-32952 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-32952
Github.com/Azure/go ntlmssp Source Repository REPOSITORY
https://github.com/Azure/go-ntlmssp
Github.com/Azure/go ntlmssp Release RELEASE
https://github.com/Azure/go-ntlmssp/releases/tag/v0.1.1

Frequently Asked Questions

What is CVE-2026-32952?
CVE-2026-32952 is a security vulnerability in Github.com/Azure/go ntlmssp involving go-ntlmssp NTLM challenges can panic on malformed payloads under CWE-190: Integer Overflow or Wraparound.
Which Github.com/Azure/go ntlmssp versions are affected?
Affected versions include releases prior to 0.1.1 across affected packages: github.com/Azure/go-ntlmssp.
What version fixes CVE-2026-32952?
Upgrading to 0.1.1 (or the latest patched release for your respective branch) resolves the vulnerability.
Is github.com/Azure/go-ntlmssp affected?
Yes, github.com/Azure/go-ntlmssp is affected in releases prior to 0.1.1. Upgrade your dependency to 0.1.1 or later.
What is the CVSS score of CVE-2026-32952?
CVE-2026-32952 has a CVSS v3.1 base score of 5.3 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
What CWE is associated with CVE-2026-32952?
CVE-2026-32952 is classified under CWE-190: Integer Overflow or Wraparound (The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.).
How can I check Go dependencies for CVE-2026-32952?
Run the dependency tree command: 'inspect dependencies for github.com/Azure/go-ntlmssp'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-pjcq-xvwq-hhpj",
  "modified" : "2026-04-27T16:35:38Z",
  "published" : "2026-04-23T21:21:58Z",
  "aliases" : [ "CVE-2026-32952" ],
  "summary" : "go-ntlmssp NTLM challenges can panic on malformed payloads",
  "details" : "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.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/Azure/go-ntlmssp"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "0.1.1"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/Azure/go-ntlmssp/security/advisories/GHSA-pjcq-xvwq-hhpj"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-32952"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/Azure/go-ntlmssp"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/Azure/go-ntlmssp/releases/tag/v0.1.1"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-190" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-04-23T21:21:58Z",
    "nvd_published_at" : "2026-04-24T03:16:07Z"
  }
}