CVE-2026-59675

HIGHPre-NVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.5 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4%, top 64% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.5Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
7.5
EG Score
7.5(medium)
EG Risk
49(Track)
EG Risk 49/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity75% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
36%
KEV
Not listed

Published

August 5, 2026

Last Modified

August 5, 2026

Advisory Details (2)

Auto-updated Aug 5, 2026
Patch available. Sources: github.
github Patch Available

Rancher Audit-Log Middleware Unauthenticated Memory Exhaustion Denial of Service · Advisory · rancher/rancher · GitHub

https://github.com/rancher/rancher/security/advisories/GHSA-g4f6-44g4-23xm
generic

Making sure you're not a bot!

https://bugzilla.suse.com/show_bug.cgi?id=CVE-2026-59675

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 10× in last 7d / 49× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-08-30 01:22 UTCEPSS rescore
  2. 2026-08-29 21:30 UTCEG score recompute
  3. 2026-08-28 21:42 UTCEPSS rescore
  4. 2026-08-27 21:10 UTCEG score recompute
  5. 2026-08-27 14:25 UTCEPSS rescore
  6. 2026-08-26 20:19 UTCEG score recompute
  7. 2026-08-26 14:46 UTCEPSS rescore
  8. 2026-08-25 19:28 UTCEG score recompute
  9. 2026-08-25 13:49 UTCEPSS rescore
  10. 2026-08-24 18:38 UTCEG score recompute
  11. 2026-08-23 05:18 UTCEG score recompute
  12. 2026-08-23 00:19 UTCEPSS rescore
  13. 2026-08-22 04:26 UTCEG score recompute
  14. 2026-08-21 23:49 UTCEPSS rescore
  15. 2026-08-21 03:34 UTCEG score recompute
  16. 2026-08-20 22:55 UTCEPSS rescore
  17. 2026-08-20 02:43 UTCEG score recompute
  18. 2026-08-19 17:04 UTCEPSS rescore
  19. 2026-08-19 01:51 UTCEG score recompute
  20. 2026-08-18 13:48 UTCEPSS rescore
  21. 2026-08-18 00:58 UTCEG score recompute
  22. 2026-08-17 13:47 UTCEPSS rescore
  23. 2026-08-16 23:52 UTCEG score recompute
  24. 2026-08-16 14:56 UTCEPSS rescore
  25. 2026-08-16 11:27 UTCEG score recompute
Show 24 more
  1. 2026-08-16 02:14 UTCEPSS rescore
  2. 2026-08-15 10:36 UTCEG score recompute
  3. 2026-08-15 01:30 UTCEPSS rescore
  4. 2026-08-14 09:45 UTCEG score recompute
  5. 2026-08-13 22:00 UTCEPSS rescore
  6. 2026-08-12 20:27 UTCEG score recompute
  7. 2026-08-12 13:51 UTCEPSS rescore
  8. 2026-08-11 19:37 UTCEG score recompute
  9. 2026-08-11 07:06 UTCEG score recompute
  10. 2026-08-11 00:00 UTCEPSS rescore
  11. 2026-08-09 17:50 UTCEG score recompute
  12. 2026-08-09 13:46 UTCEPSS rescore
  13. 2026-08-08 17:00 UTCEG score recompute
  14. 2026-08-08 16:37 UTCEPSS rescore
  15. 2026-08-08 04:34 UTCEG score recompute
  16. 2026-08-06 15:17 UTCEG score recompute
  17. 2026-08-06 13:47 UTCEPSS rescore
  18. 2026-08-06 02:52 UTCEG score recompute
  19. 2026-08-05 19:17 UTCEPSS rescore
  20. 2026-08-05 14:26 UTCEG score recompute
  21. 2026-08-05 13:47 UTCEG score recompute
  22. 2026-08-05 08:20 UTCEG score recompute
  23. 2026-08-05 08:12 UTCEG score recompute
  24. 2026-08-05 08:10 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-59675?
CVE-2026-59675 is a high vulnerability published on August 5, 2026. 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…
When was CVE-2026-59675 disclosed?
CVE-2026-59675 was first published in the National Vulnerability Database on August 5, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-59675 actively exploited?
CVE-2026-59675 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 64.0% of all scored CVEs.
What is the CVSS score of CVE-2026-59675?
CVE-2026-59675 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-59675?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-59675, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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