Rancher Audit-Log Middleware Unauthenticated Memory Exhaustion Denial of Service (SUSE Rancher)
En bref
- Source
- NVD
- EPSS
- EPSS 0.56 % · centile 46 ()
- État
- PUBLISHED
- Publiée
- Mise à jour
- Attribuée par
- suse
- Statut NVD
- Awaiting Analysis
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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.
Faiblesses (CWE)
- CWE-770 — Allocation de ressources sans limite ni régulation
Références
Scores
| Version | Score | Vecteur | Évalué par |
|---|---|---|---|
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | suse |
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | NVD · meissner@suse.de (Secondary) |
Références européennes
- ENISA EUVD · EUVD-2026-53291
- GCVE · GCVE-0-2026-59675
Produits affectés
| Produit | Versions |
|---|---|
| SUSE · Rancher | affected 2.14.0 < 2.14.4 ; affected 2.13.0 < 2.13.8 ; affected 2.12.0 < 2.12.12 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |