Skip to main content

Boteraser | Website and Server Security Solutions

🛡️ CVE-2025-66001 — neuvector

🟠 CVSS 8.8 — High ✅ No Known Exploit CWE-295 NVD
8.8
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

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

Impact

NeuVector supports login authentication through OpenID Connect. However, the TLS verification (which verifies the remote server's authenticity and integrity) for OpenID Connect is not enforced by default. As a result this may expose the system to man-in-the-middle (MITM) attacks.

Starting from version 5.4.0, NeuVector supports TLS verification for following connection types:

  • Registry Connections
  • Auth Server Connections (SAML, LDAP and OIDC)
  • Webhook Connections

By default, TLS verification remains disabled, and its configuration is located under Settings > Configuration in the NeuVector UI.

In the patched version, the new NeuVector deployment enables TLS verification by default.

For rolling upgrades, NeuVector does not automatically change this setting to prevent disruptions.

Note: When "TLS verification" is enabled, it affects all connections to:

  • Registry servers
  • Auth servers (SAML, LDAP and OIDC)
  • Webhook servers

Patches

Patched versions include release v5.4.8 and above.

Workarounds

To manually enable TLS verification:

1. Open the NeuVector UI.

2. Navigate to Settings > Configuration.

3. In the TLS Self-Signed Certificate Configuration section, select Enable TLS verification.

4. (Optional) Upload or paste the TLS self-signed certificate.

References

If you have any questions or comments about this advisory:

  • Reach out to the [SUSE Rancher Security team](https://github.com/rancher/rancher/security/policy) for security related inquiries.
  • Open an issue in the [NeuVector](https://github.com/neuvector/neuvector/issues/new/choose) repository.
  • Verify with our [support matrix](https://www.suse.com/suse-neuvector/support-matrix/all-supported-versions/neuvector-v-all-versions/) and [product support lifecycle](https://www.suse.com/lifecycle/#suse-security).

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. A user must be tricked into taking some action. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability high.

CVSS metrics in full

The score comes from this vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

  • Attack vector: Network — reachable from anywhere that can route to the service.
  • Attack complexity: Low — the attack works reliably, with no preparation.
  • Privileges required: None — an unauthenticated stranger can try it.
  • User interaction: Required — someone has to click, open or visit something.
  • Scope: Unchanged — the damage stays inside the vulnerable component.
  • Confidentiality impact: High — total loss, or loss the attacker controls.
  • Integrity impact: High — total loss, or loss the attacker controls.
  • Availability impact: High — total loss, or loss the attacker controls.

Weakness class

CVE-2025-66001 is classified as CWE-295: Improper Certificate Validation. A TLS certificate is accepted without proper verification, so a man-in-the-middle can present their own.

Affected software

CVE-2025-66001 is recorded against 2 packages.

  • github.com/neuvector/neuvector
  • unknown

Timeline and source

Published on 12 December 2025 and last revised on 1 July 2026. No public exploit is currently recorded for this entry. A vendor advisory or fix has been published. Record sourced from NVD.

References

github.com (Web)
nvd.nist.gov (Advisory)
github.com (Web)
bugzilla.suse.com (Web)
github.com (Package)

Other advisories for this package

github.com/neuvector/neuvector has other advisories on record. If you are patching this one, these are worth checking on the same host:

Same weakness in other software

These advisories are the same class of weakness (CWE-295: Improper Certificate Validation) in other software:

Details

Severity HIGH
CVSS Score 8.8
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE CWE-295
Public Exploit ✅ No
Source NVD
Published 2025-12-12
Updated 2026-08-20
Modified 2026-07-01

Affected Packages

Software From version Fixed in
github.com/neuvector/neuvector — —
unknown — —

Similar Threats

Site Security Check

Is neuvector part of your stack?

CVE-2025-66001 is rated CVSS 8.8 High. BotEraser scans your installation against known CVE records and tells you whether this vulnerability applies to the versions you actually run.

Scan My Site Free →

No credit card required  ·  Results in minutes

ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.

Browse related advisories

All advisoriesCVECVE 2025
✓