Rancher Audit-Log Middleware Unauthenticated Memory Exhaustion Denial of Service
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
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| SUSE | Rancher | unaffected |
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No data.
No data.
| Vendor | Product | Versions | ||||||||||||||||
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| Suse | Rancher |
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No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.557% probability within 30 days)
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| Metrics |
ssvc
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| First Time appeared |
Suse
Suse rancher |
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| Vendors & Products |
Suse
Suse rancher |
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| Description | 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. | |
| Title | Rancher Audit-Log Middleware Unauthenticated Memory Exhaustion Denial of Service | |
| Weaknesses | CWE-770 | |
| References |
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| Metrics |
cvssV3_1
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