go-ntlmssp NTLM challenges can panic on malformed payloads
Priority LOW 35CWE-190Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Partial Red Hat: 27 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-190 and the CVSS impact.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01027 63rd percentileScored 2026-11-07
Fix Partial go-ntlmssp (Azure): 0.1.1github.com/Azure/go-ntlmssp (Go): 0.1.1Red Hat: 27 without a fix
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Microsoft | go-ntlmssp | before 0.1.1 | 0.1.1 | Patch available | CNA |
| — | github.com/Azure/go-ntlmssp (Go) | before 0.1.1 | 0.1.1 | Patch available | GHSA-pjcq-xvwq-hhpj |
- go-ntlmssp VendorMicrosoft Affected before 0.1.1 Fixed in 0.1.1 Patch available CNA
- github.com/Azure/go-ntlmssp (Go) Vendor— Affected before 0.1.1 Fixed in 0.1.1 Patch available GHSA-pjcq-xvwq-hhpj
Remediation
- Fix · CNA go-ntlmssp (Azure) Fixed in 0.1.1
- Fix · GHSA-pjcq-xvwq-hhpj github.com/Azure/go-ntlmssp (Go) Fixed in 0.1.1 Advisory →
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Assisted Installer for Red Hat OpenShift Container Platform 2 | Affected | — |
| Confidential Compute Attestation | Affected | — |
| Kernel Module Management Operator for Red Hat Openshift | Affected | — |
| Logging Subsystem for Red Hat OpenShift | Affected | — |
| Logical Volume Manager Storage | Affected | — |
| Migration Toolkit for Containers | Affected | — |
| Migration Toolkit for Virtualization | Affected | — |
| Multicluster Engine for Kubernetes | Affected | — |
| Multicluster Global Hub | Affected | — |
| Node HealthCheck Operator | Affected | — |
| OpenShift API for Data Protection | Affected | — |
| OpenShift Developer Tools and Services | Affected | — |
| OpenShift Serverless | Affected | — |
| OpenShift Service Mesh 2 | Affected | — |
| OpenShift Service Mesh 3 | Affected | — |
| Pen Drive Powered by Red Hat Lightspeed | Affected | — |
| Power monitoring for Red Hat OpenShift | Affected | — |
| Red Hat Advanced Cluster Management for Kubernetes 2 | Affected | — |
| Red Hat Build of Kueue | Affected | — |
| Red Hat Enterprise Linux 10 | Affected | — |
| Red Hat Enterprise Linux 9 | Affected | — |
| Red Hat OpenShift AI (RHOAI) | Affected | — |
| Red Hat OpenShift Container Platform 4 | Affected | — |
| Red Hat OpenShift GitOps | Affected | — |
| Red Hat OpenStack Platform 18.0 | Affected | — |
| Red Hat Openshift Data Foundation 4 | Affected | — |
| Red Hat Quay 3 | Affected | — |
Not affected: 7 products
- External Secrets Operator for Red Hat OpenShift
- Red Hat Ansible Automation Platform 2
- Red Hat Ceph Storage 5
- Red Hat Ceph Storage 6
- Red Hat Ceph Storage 9
- Red Hat OpenShift Virtualization 4
- cert-manager Operator for Red Hat OpenShift
Timeline
- 2026-10-02 Threatist record created from CVE-2026-32952
- 2026-10-03 Alias added: GHSA-pjcq-xvwq-hhpj
References
Sources
- CVE-2026-32952 · CVE Program
- CVE-2026-32952 · NVD
- FIRST EPSS
- GHSA-pjcq-xvwq-hhpj · GitHub Advisory Database · CC BY 4.0
- CVE-2026-32952 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences