CVE-2026-44935

Rancher Fleet vulnerable to cross namespace secret disclosure via unvalidated `valuesFrom` references in Helm Deployer

State: Published
Severity: 9.9 Critical
Published: Jul 2, 2026
Updated: Jul 3, 2026
Reserved: May 8, 2026

Description

Missing validation of "valuesFrom" references in Helm Deployer of SUSE Rancher Fleet 0.15 before 0.15.2, 0.14 before 0.14.6, 0.13 before 0.13.11 and 0.12 before 0.12.15 could be used by owners of one tenant to access fleet credentials of other tenants.

Scores

CVSS	Score	Vector	Source
3.1	9.9 Critical	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H	suse

Weaknesses

CWE-1287 Improper validation of specified type of input

Affected Products

Product	Versions
RancherSUSE	0.15.0 to before 0.15.2Affected 0.14.0 to before 0.14.6Affected 0.13.0 to before 0.13.11Affected 0.12.0 to before 0.12.15Affected

References

https://github.com/rancher/fleet/security/advisories/GHSA-xr65-5cpm-g36xvendor-advisory

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