CVE-2026-59675

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Source
https://cve.org/CVERecord?id=CVE-2026-59675
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-59675.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-59675
Aliases
  • GHSA-g4f6-44g4-23xm
Published
2026-08-05T07:49:11Z
Modified
2026-09-03T03:30:41Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
Rancher Audit-Log Middleware Unauthenticated Memory Exhaustion Denial of Service
Details

When API audit logging is enabled, the middleware reads the entire HTTP request body into memory without enforcing a size limit on login endpoints. Because the audit middleware is positioned earlier in the handler chain than Rancher's APIBodyLimitingHandler, the body-size cap (default 1 MiB) is bypassed for requests that pass through the audit copyReqBody path. An unauthenticated attacker can send arbitrarily large request bodies to the public login endpoints, causing the Rancher Manager server process to allocate memory proportional to the supplied body size. With just a few concurrent connections, this can exhaust available memory and terminate the Rancher Manager plane process, making the Rancher API and UI unavailable and interrupting management of all downstream clusters.

Database specific 
{
    "cna_assigner": "suse",
    "cwe_ids": [
        "CWE-770"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/59xxx/CVE-2026-59675.json"
}
References

Affected packages

Git / github.com/rancher/rancher

Affected ranges

Type
GIT
Repo
https://github.com/rancher/rancher
Events
Introduced
19d8a9c03fde57ab691101dc90a17b92c55f09ad
Fixed
79b003279fec8814d9dc5252c5f6d8100a170348
Introduced
f94ac947f75e312f1ab9217d21b2770b48b734c8
Fixed
853a0e93a1ca67653b80ae9550df98344e4e21c5
Introduced
8815e66bf2e4b528493cf11222f1a63f86305a9f
Fixed
3bc84195ee8855d7426718b4b87988fb6bc14fc0
Database specific
Show details 
{
    "extracted_events": [
        {
            "introduced": "2.14.0"
        },
        {
            "fixed": "2.14.4"
        },
        {
            "introduced": "2.13.0"
        },
        {
            "fixed": "2.13.8"
        },
        {
            "introduced": "2.12.0"
        },
        {
            "fixed": "2.12.12"
        }
    ],
    "source": "AFFECTED_FIELD"
}

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
v2.12.10
v2.12.10-alpha1
v2.12.10-alpha2
v2.12.10-alpha3
v2.12.10-alpha4
v2.12.10-alpha5
v2.12.10-rc1
v2.12.11
v2.12.11-alpha1
v2.12.11-alpha2
v2.12.11-alpha3
v2.12.11-alpha4
v2.12.11-alpha5
v2.12.11-rc1
v2.12.12-alpha1
v2.12.12-alpha2
v2.12.12-alpha3
v2.12.12-alpha4
v2.12.12-alpha5
v2.12.12-alpha6
v2.12.12-alpha7
v2.12.12-alpha8
v2.12.12-alpha9
v2.12.12-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
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
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
v2.13.6
v2.13.6-alpha1
v2.13.6-alpha2
v2.13.6-alpha3
v2.13.6-alpha4
v2.13.6-alpha5
v2.13.6-alpha6
v2.13.6-rc1
v2.13.7
v2.13.7-alpha1
v2.13.7-alpha2
v2.13.7-alpha3
v2.13.7-alpha4
v2.13.7-alpha5
v2.13.7-alpha6
v2.13.7-alpha7
v2.13.7-rc1
v2.13.8-alpha1
v2.13.8-alpha2
v2.13.8-alpha3
v2.13.8-alpha4
v2.13.8-alpha5
v2.13.8-alpha6
v2.13.8-alpha7
v2.13.8-alpha8
v2.13.8-rc1
v2.14.0
v2.14.1
v2.14.1-alpha1
v2.14.1-alpha10
v2.14.1-alpha11
v2.14.1-alpha12
v2.14.1-alpha13
v2.14.1-alpha14
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
v2.14.2
v2.14.2-alpha1
v2.14.2-alpha2
v2.14.2-alpha3
v2.14.2-alpha4
v2.14.2-alpha5
v2.14.2-alpha6
v2.14.2-alpha7
v2.14.2-alpha8
v2.14.2-rc1
v2.14.3
v2.14.3-alpha1
v2.14.3-alpha2
v2.14.3-alpha3
v2.14.3-alpha4
v2.14.3-alpha5
v2.14.3-alpha6
v2.14.3-rc1
v2.14.4-alpha1
v2.14.4-alpha2
v2.14.4-alpha3
v2.14.4-alpha4
v2.14.4-alpha5
v2.14.4-alpha6
v2.14.4-alpha7
v2.14.4-rc1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-59675.json"