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Advisory record · GHSA-4jj9-cgqc-x9h5

NeuVector OpenID Connect is vulnerable to man-in-the-middle (MITM)

CVSS 8.8 HighEPSS 0.0036 · 30th percentile

Published by the GitHub Advisory Database at 12 Dec 2025, 19:22 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
github.com/neuvector/neuvectorGo>=5.3.0, <5.4.85.4.8
Identifiers
GHSA-4jj9-cgqc-x9h5 · CVE-2025-66001 · GO-2025-4235
Weakness (CWE)
CWE-295
Tags
Published
12 Dec 2025
Updated
10 Sept 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

NeuVector versions 5.3.0 up to but not including 5.4.8 do not enforce TLS verification for OpenID Connect logins by default, so the connection to the authentication server is not checked for authenticity or integrity. An attacker positioned on the network path between NeuVector and the OIDC server could intercept or alter authentication traffic. Upgrade to NeuVector 5.4.8 or later; on existing installations, the TLS verification setting under Settings > Configuration must be enabled manually because rolling upgrades do not change it.

Written 1 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
8.8 High 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H CNA (suse)
  • CISA KEV Not listed.
  • EPSS 0.0036, the 30th percentile, on 14 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:14 UTC First seen by agentprime
  2. 31 Oct 2026, 14:14 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.