CVE-2026-23634

Name: CVE-2026-23634
Creator: NVD / NIST
Published: 2026-01-16T20:15:49.733+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.3/10EPSS 0.23%

Last modified Jun 17, 2026

CVE-2026-23634 is a medium-severity vulnerability rated 4.3/10 on the CVSS scale. Pepr is a type safe K8s middleware. Prior to 1.0.5 , Pepr defaults to a cluster-admin RBAC configuration and does not explicitly force or enforce least-privilege guidance for module authors. EPSS estimates a 0.23% chance of exploitation in the next 30 days.

Description

Pepr is a type safe K8s middleware. Prior to 1.0.5 , Pepr defaults to a cluster-admin RBAC configuration and does not explicitly force or enforce least-privilege guidance for module authors. The default behavior exists to make the “getting started” experience smooth: new users can experiment with Pepr and create resources dynamically without needing to pre-configure RBAC. This vulnerability is fixed in 1.0.5.

Metrics

CVSS 3.1

4.3/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

EPSS Probability

0.23%

13.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-272

Affected Software

Vendor	Product	Versions
Defenseunicorns	Pepr	< 1.0.5

References

https://github.com/defenseunicorns/pepr/releases/tag/v1.0.5Release Notes
https://github.com/defenseunicorns/pepr/security/advisories/GHSA-w54x-r83c-x79qVendor Advisory

Timeline

Published: Jan 16, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-23634?

How severe is CVE-2026-23634?

CVE-2026-23634 has a CVSS score of 4.3/10 (MEDIUM severity). The EPSS model estimates a 0.23% probability of exploitation in the next 30 days.

How do I fix CVE-2026-23634?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-23634?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST