Skip to content
Fencer Vulns
critical 9.8

CVE-2023-22463 in the critical feed json

KubePi's Hardcoded Jwtsigkeys allows malicious actor to login with a forged JWT token

published 2023-01-04 3 y ago modified 2026-09-10 1 mo ago also GHSA-vjhf-8vqx-vqpq , GO-2023-1283 , EUVD-2023-0560

cvss
9.8
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
69.7%
EPSS 69.7% chance of exploitation in 30 days, percentile 99.3%
public exploits
0
none known, plus a Nuclei check

Summary

KubePi is a k8s panel. The jwt authentication function of KubePi through version 1.6.2 uses hard-coded Jwtsigkeys, resulting in the same Jwtsigkeys for all online projects. This means that an attacker can forge any jwt token to take over the administrator account of any online project. Furthermore, they may use the administrator to take over the k8s cluster of the target enterprise. `session.go`, the use of hard-coded JwtSigKey, allows an attacker to use this value to forge jwt tokens arbitrarily. The JwtSigKey is confidential and should not be hard-coded in the code. The vulnerability has been fixed in 1.6.3. In the patch, JWT key is specified in app.yml. If the user leaves it blank, a random key will be used. There are no workarounds aside from upgrading.

Patch / fix

  • go github.com/KubeOperator/kubepi 1.6.3
  • fit2cloud kubepi 1.6.3

CISA SSVC

Exploitation
Proof of concept is public
Automatable
yes
Technical impact
total
Assessed
19 mo ago

Exploit prediction

69.67% chance of exploitation in the next 30 days, higher than 99.3% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • Nuclei template KubePi JwtSigKey - Admin Authentication Bypass nuclei detection template
  • github.com https://github.com/KubeOperator/KubePi/security/advisories/GHSA-vjhf-8vqx-vqpq referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.0 9.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
GitHub 3.0 9.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
go github.com/KubeOperator/kubepi
<1.6.3
1.6.3

Affected products

  • KubeOperator KubePi

Classification

Weakness
  • CWE-798 Use of Hard-coded Credentials

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.