CVE-2026-25705

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Source
https://cve.org/CVERecord?id=CVE-2026-25705
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-25705.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2026-25705
Aliases
Published
2026-05-13T08:00:46.097Z
Modified
2026-05-18T05:58:36.911965596Z
Severity
  • 8.4 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H CVSS Calculator
Summary
Rancher Extensions have arbitrary file access via path traversal
Details

A vulnerability has been identified in Rancher's Extensions where malicious code can be injected in Rancher through a path traversal in the compressedEndpoint field inside a UIPlugin deployment. A malicious UI extension could abuse that to: * Overwrite Rancher binaries or configuration to inject code.

  • Write to /var/lib/rancher/ to tamper with cluster state.

  • If hostPath volumes are mounted, write to the host node filesystem.

  • Use this issue to chain with other attack vectors.

Database specific 
{
    "cna_assigner": "suse",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/25xxx/CVE-2026-25705.json",
    "cwe_ids": [
        "CWE-35"
    ]
}
References

Affected packages

Git / github.com/rancher/rancher

Affected ranges

Type
GIT
Repo
https://github.com/rancher/rancher
Events
Introduced
19d8a9c03fde57ab691101dc90a17b92c55f09ad
Fixed
9cf8959713c9152622ce8337c3242da7e44944c1
Introduced
f94ac947f75e312f1ab9217d21b2770b48b734c8
Fixed
8dbcbe437d063f86acf5da89ce686c2601a18010
Introduced
8815e66bf2e4b528493cf11222f1a63f86305a9f
Fixed
db2754edc35189187bb10c524601d3d62642ff9b
Introduced
55b9e241c5577600197c77f4b33dc55e80a35dd0
Fixed
656bed78295984ab2325c88fc63f3a5f208dd128
Database specific 
{
    "source": "AFFECTED_FIELD",
    "extracted_events": [
        {
            "introduced": "2.14.0"
        },
        {
            "fixed": "2.14.1"
        },
        {
            "introduced": "2.13.0"
        },
        {
            "fixed": "2.13.5"
        },
        {
            "introduced": "2.12.0"
        },
        {
            "fixed": "2.12.9"
        },
        {
            "introduced": "2.10.11"
        },
        {
            "fixed": "2.11.13"
        }
    ]
}

Affected versions

v2.*
v2.12.0
v2.12.1
v2.12.1-alpha1
v2.12.1-alpha2
v2.12.1-alpha3
v2.12.1-alpha4
v2.12.1-rc1
v2.12.2
v2.12.2-alpha1
v2.12.2-alpha2
v2.12.2-alpha3
v2.12.2-alpha4
v2.12.2-alpha5
v2.12.2-rc1
v2.12.2-rc2
v2.12.3
v2.12.3-alpha1
v2.12.3-alpha2
v2.12.3-rc1
v2.12.4
v2.12.4-alpha1
v2.12.4-alpha2
v2.12.4-alpha3
v2.12.4-alpha4
v2.12.4-alpha5
v2.12.4-alpha6
v2.12.4-hotfix-a3c0.1
v2.12.4-rc1
v2.12.5
v2.12.5-alpha1
v2.12.5-alpha2
v2.12.5-rc1
v2.12.6
v2.12.6-alpha1
v2.12.6-alpha2
v2.12.6-rc1
v2.12.6-rc2
v2.12.7
v2.12.7-alpha1
v2.12.7-alpha2
v2.12.7-alpha3
v2.12.7-rc1
v2.12.8
v2.12.8-alpha1
v2.12.8-alpha2
v2.12.8-rc1
v2.12.9-alpha1
v2.12.9-alpha2
v2.12.9-alpha3
v2.12.9-alpha4
v2.12.9-alpha5
v2.12.9-alpha6
v2.12.9-alpha7
v2.12.9-rc1
v2.13.0
v2.13.0-rc4
v2.13.1
v2.13.1-alpha1
v2.13.1-alpha2
v2.13.1-alpha3
v2.13.1-alpha4
v2.13.1-alpha5
v2.13.1-alpha6
v2.13.1-alpha7
v2.13.1-rc1
v2.13.2
v2.13.2-alpha1
v2.13.2-alpha2
v2.13.2-alpha3
v2.13.2-alpha4
v2.13.2-alpha5
v2.13.2-alpha6
v2.13.2-alpha7
v2.13.2-rc1
v2.13.2-rc2
v2.13.3
v2.13.3-alpha1
v2.13.3-alpha2
v2.13.3-alpha3
v2.13.3-alpha4
v2.13.3-alpha5
v2.13.3-alpha6
v2.13.3-rc1
v2.13.3-rc2
v2.13.3-rc3
v2.13.4
v2.13.4-alpha1
v2.13.4-alpha2
v2.13.4-alpha3
v2.13.4-alpha4
v2.13.4-alpha5
v2.13.4-rc1
v2.13.5-alpha1
v2.13.5-alpha2
v2.13.5-alpha3
v2.13.5-alpha4
v2.13.5-alpha5
v2.13.5-alpha6
v2.13.5-alpha7
v2.13.5-rc1
v2.14.0
v2.14.1-alpha1
v2.14.1-alpha10
v2.14.1-alpha11
v2.14.1-alpha12
v2.14.1-alpha13
v2.14.1-alpha2
v2.14.1-alpha3
v2.14.1-alpha4
v2.14.1-alpha5
v2.14.1-alpha6
v2.14.1-alpha7
v2.14.1-alpha8
v2.14.1-alpha9
v2.14.1-rc1
v2.14.1-rc2

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-25705.json"