CVE-2026-23634 (GCVE-0-2026-23634)
Vulnerability from cvelistv5 – Published: 2026-01-16 19:14 – Updated: 2026-01-16 21:38
VLAI
EPSS
VEX
Title
Pepr Overly Permissive RBAC ClusterRole in Admin Mode
Summary
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.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-16 21:38 UTC
CWE
- CWE-272 - Least Privilege Violation
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/defenseunicorns/pepr/security/… | x_refsource_CONFIRM |
| https://github.com/defenseunicorns/pepr/releases/… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| defenseunicorns | pepr |
Affected:
< 1.0.5
|
guessed |
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The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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