PT-2026-95489 · Capsule · Capsule

CVE-2026-61794

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Published

2026-09-18

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Updated

2026-09-28

CVSS v3.1

6.8

Medium

VectorAV:N/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
Name of the Vulnerable Software and Affected Versions Capsule versions 0.13.0 through 0.13.6
Description A validation error in internal/webhook/tenant/validation/forbidden annotations regex.go allows a malformed ForbiddenAnnotations.Regex value to bypass validation during a Tenant update. This occurs because the system incorrectly compiles ForbiddenLabels.Regex for both label and annotation checks. When a Namespace is subsequently created or updated, the stored malformed expression is processed by pkg/api/forbidden list.go, where the regexp.MustCompile() function can panic. This leads to a denial of service for namespace operations within the affected tenant.
Recommendations Update to version 0.13.7.

Exploit

Fix

RCE

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Weakness Enumeration

Related Identifiers

CVE-2026-61794
GHSA-GXJC-74V5-3VX3
GO-2026-6521

Affected Products

Capsule