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CVE-2026-44939· NVD / CVE Program· CNA suse

Command injection through unsanitized YAML parameter in Rancher

A command injection vulnerability in the Rancher Manager cluster before 2.14.2 import endpoint /v3/import/{token}_{clusterId}.yaml through unsanitized YAML parameters could allow remote attackers to break out of an image, and execute e.g. malicious containers.

CriticalCVSS 9.4 · v4.0—No exploit Fix available
Published
Jun 19, 2026
Updated
Jun 24, 2026
EPSS
1.3% · 70th percentile
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Report tools

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Action score

37

Monitor

Low priority for now.

CVSS
37 / 40 · 9.4 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 1.3%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · suse
9.4
NVD has not scored this yet; the score shown is the CNA’s.

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Affected systems

—

Versions reported by the vendor

Affected version ranges reported by the assigning authority (suse). Independent of NVD's CPE analysis and usually ahead of it.

  • SUSE Rancher

    • 2.14.0 and later · before 2.14.2affected · semver
    • 2.13.0 and later · before 2.13.6affected · semver
    • 2.12.0 and later · before 2.12.10affected · semver
    • 2.11.0 and later · before 2.11.14affected · semver
    • 2.10.0 and later · before 2.10.12affected · semver

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Gogithub.com/rancher/rancherfrom 2.10.0 · before 2.10.122.10.12
Gogithub.com/rancher/rancherfrom 2.11.0 · before 2.11.142.11.14
Gogithub.com/rancher/rancherfrom 2.12.0 · before 2.12.102.12.10
Gogithub.com/rancher/rancherfrom 2.13.0 · before 2.13.62.13.6
Gogithub.com/rancher/rancherfrom 2.14.0 · before 2.14.22.14.2
Gogithub.com/rancher/rancherbefore 0.0.0-20260617231817-2aa77eb283e70.0.0-20260617231817-2aa77eb283e7

Same product

suse: all records

Other highest-scoring records for the same primary product.

  • CVE-2022-43755Rancher: Non-random authentication token
    40Plan
  • CVE-2021-36782Rancher: Plaintext storage and exposure of credentials in Rancher API and cluster.management.cattle.io object
    40Plan
  • CVE-2026-41050Helm impersonation bypass of `RESTClientGetter` retains `cluster-admin` during template rendering
    39Monitor
  • CVE-2025-62878Local Path Provisioner vulnerable to Path Traversal via parameters.pathPattern
    39Monitor
  • CVE-2023-22651Improper Privilege Management vulnerability in SUSE Rancher allows Privilege Escalation.
    39Monitor
  • CVE-2021-36783Rancher: Failure to properly sanitize credentials in cluster template answers
    39Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
SUSE Rancher2.10.12Vendor (CNA)
SUSE Rancher2.11.14Vendor (CNA)
SUSE Rancher2.12.10Vendor (CNA)
SUSE Rancher2.13.6Vendor (CNA)
SUSE Rancher2.14.2Vendor (CNA)
Go:github.com/rancher/rancher0.0.0-20260617231817-2aa77eb283e7Package registry (OSV)
Go:github.com/rancher/rancher2.10.12Package registry (OSV)
Go:github.com/rancher/rancher2.11.14Package registry (OSV)
Go:github.com/rancher/rancher2.12.10Package registry (OSV)
Go:github.com/rancher/rancher2.13.6Package registry (OSV)
Go:github.com/rancher/rancher2.14.2Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
Integrity
Availability
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
P
Scope
X

Weakness class (CWE)

CWE-95 · Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection')

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

nvd-secondary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Noroxi analysis

No Noroxi analysis for this record yet

We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.

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Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records