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🛡️ CVE-2023-32188 — neuvector

🔴 CVSS 9.5 — Critical ✅ No Known Exploit CWE-1270 NVD
9.5
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

JWT token compromise can allow malicious actions including Remote Code Execution (RCE)

Impact

A user can reverse engineer the JWT token (JSON Web Token) used in authentication for Manager and API access, forging a valid NeuVector Token to perform malicious activity in NeuVector. This can lead to an RCE.

Patches

Upgrade to NeuVector [version 5.2.2](https://open-docs.neuvector.com/releasenotes/5x) or later and latest Helm chart (2.6.3+).

+ In 5.2.2 the certificate for JWT-signing is created automatically by controller with validity of 90days and rotated automatically.

+ Use Helm-based deployment/upgrade to 5.2.2 to generate a unique certificate for Manager, REST API, ahd registry adapter. Helm based installation/upgrade is required in order to automatically generate certificates upon initial installation and each subsequent upgrade.

+ See [release notes](https://open-docs.neuvector.com/releasenotes/5x) for manual/yaml based deployment advice.

+ 5.2.2 also implements additional protections against possible RCE for the feature of custom compliance scripts.

Workarounds

Users can replace the Manager & Controller certificate manually by following the instructions in documented [here](https://open-docs.neuvector.com/configuration/console/replacecert). However, upgrading to 5.2.2 and replacing Manager/REST API certificate is recommended to provide additional security enhancements to prevent possible attempted exploit and resulting RCE. See [release notes](https://open-docs.neuvector.com/releasenotes/5x) for additional details.

Credits

Thank you to [Dejan Zelic](https://dejandayoff.com/) at [Offensive Security](https://www.offsec.com/) for responsibly reporting this vulnerability.

For More Information

View the NeuVector [Security Policy](https://github.com/neuvector/neuvector/security)

General NeuVector [documentation](https://open-docs.neuvector.com/)

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. 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:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

  • Attack vector: Network — reachable from anywhere that can route to the service.
  • Attack complexity: Low — the attack works reliably, with no preparation.
  • Attack requirements: None — no deployment-specific condition has to hold.
  • Privileges required: Low — an ordinary user account is enough.
  • User interaction: None — nobody has to be tricked into anything.
  • 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-2023-32188 is classified as CWE-1270: Generation of Incorrect Security Tokens. The product implements a Security Token mechanism to differentiate what actions are allowed or disallowed when a transaction originates from an entity. However, the Security Tokens generated in the system are incorrect.

Affected software

CVE-2023-32188 is recorded against 2 packages.

  • github.com/neuvector/neuvector
  • unknown

Timeline and source

Published on 6 October 2023 and last revised on 4 May 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

github.com (Web)
nvd.nist.gov (Advisory)
bugzilla.suse.com (Web)
github.com (Package)
open-docs.neuvector.com (Web)

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-1270: Generation of Incorrect Security Tokens) in other software:

Details

Severity CRITICAL
CVSS Score 9.5
CVSS Vector CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CWE CWE-1270
Public Exploit ✅ No
Source NVD
Published 2023-10-06
Updated 2026-08-20
Modified 2026-05-04
Fix URL N/A

Affected Packages

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

Similar Threats

Exploit Protection

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ⓘ 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.

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