Rancher Fleet SSRF in Bundle Reader via Unvalidated Helm Repository URL in fleet.yaml

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Summary

CVECVE-2026-44936
StatePUBLISHED
Assignersuse
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-07-06 11:16:27 UTC
Updated2026-07-09 20:34:30 UTC
DescriptionMissing filtering when the helmRepoURLRegex field isn't set on a GitRepo resource in SUSE Rancher Fleet's bundle reader in 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 forwards Helm authentication credentials (BasicAuth) to any URL specified in the helm.repo field of a fleet.yaml file, allowing attackers able to push to fleet monitored git repos to leak helm access credentials.

Risk And Classification

Primary CVSS: v3.1 5 MEDIUM from [email protected]

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

EPSS: 0.003700000 probability, percentile 0.290020000 (date 2026-07-08)

Problem Types: CWE-918 | CWE-918 CWE-918 Server-Side request forgery (SSRF)

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary5MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N
3.1[email protected]Secondary5MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N
3.1CNACVSS5MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
Low
Integrity
None
Availability
None

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Suse Rancher Fleet All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA SUSE Rancher affected 0.15.0 0.15.2 semver Not specified
CNA SUSE Rancher affected 0.14.0 0.14.6 semver Not specified
CNA SUSE Rancher affected 0.13.0 0.13.11 semver Not specified
CNA SUSE Rancher affected 0.12.0 0.12.15 semver Not specified

References

ReferenceSourceLinkTags
github.com/advisories/GHSA-hx4v-cxpf-vh8m [email protected] github.com Exploit, Third Party Advisory, Mitigation
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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