Integer overflow in Azure Go-ntlmssp
CVE-2026-32952
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`…
Vulnerability class: Integer Overflow
EPSS: 0.001 (21.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
Affected products
- Azure Go-ntlmssp — versions < 0.1.1
- Microsoft Go-ntlmssp
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)
- security-advisories@github.com (Product, x_refsource_MISC, Release Notes)
Frequently asked questions
- What is CVE-2026-32952?
- CVE-2026-32952 is a medium-severity vulnerability in Azure Go-ntlmssp, classified under Integer Overflow or Wraparound. CVSS score: 5.3/10. Published 2026-04-24.
- How severe is CVE-2026-32952?
- Medium severity. CVSS v3 base score is 5.3 out of 10.