Bug 2517904 (CVE-2026-73834)

Summary:	CVE-2026-73834 must-gather: must-gather: embedded Secret data in ACM wrapper CRs collected without redaction
Product:	[Other] Security Response	Reporter:	Christopher Lusk <clusk>
Component:	vulnerability	Assignee:	Product Security <prodsec-ir-bot>
Status:	NEW ---	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	gparvin, rhaigner, security-response-team
Target Milestone:	---	Keywords:	Security
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Hardware:	All
OS:	Linux
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Doc Text:	A flaw was found in the must-gather component of Red Hat Advanced Cluster Management for Kubernetes. Certain ACM wrapper Custom Resources that embed Secret data are collected without redaction. When an administrator runs must-gather, credentials and tokens are captured in cleartext in the resulting archive, potentially exposing sensitive information to anyone with access to the archive.	Story Points:	---
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Christopher Lusk 2026-08-18 14:29:31 UTC

The ACM must-gather tool collects certain ACM "wrapper" Custom Resources that embed Secret data (credentials, tokens) without applying redaction. When an administrator runs must-gather for troubleshooting, these secrets are captured in cleartext in the must-gather archive. Archives are routinely uploaded to support cases, exposing credentials to anyone with access to the archive.

Source: Project Glasswing AI-SAST audit of stolostron/must-gather.
Jira: ACM-38732
Remediation: Fix branch glasswing/f001/embedded-secret-data-in-acm-wrapper-crs (commit 2f863307b468), checks_passed.
Reporter: Justin Kulikauskas