CVE-2026-71404

HIGHPre-NVD 8.78.7—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.7 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.2%, top 84% 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
8.7EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.7Exploit: None knownExposed: 0

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

A flaw was found in Rancher Manager. The GlobalRole controller derived the target ClusterRole name from the user-settable authz.management.cattle.io/cr-name annotation and overwrote that object's rules without verifying ownership. A user with delegated GlobalRole create or update permission could point the annotation at any existing ClusterRole, such as cluster-admin, and revoke the permissions of every principal bound to it. The change persists after the malicious GlobalRole is deleted.

This issue affects Rancher: before 2.15.1.

CVSS v3
8.7
EG Score
8.7(medium)
EG Risk
39(Track)
EG Risk 39/100SSVC: 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
Severity87% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
16%
KEV
Not listed

Published

September 3, 2026

Last Modified

September 18, 2026

Advisory Details (2)

Auto-updated Sep 3, 2026
Upstream fix merged — awaiting tagged release. Sources: github_pr.
github_pr

Remove annotation logic from GR and GRBs

Fix merged in rancher/rancher PR #56593 on 2026-08-14 — awaiting tagged release

https://github.com/rancher/rancher/pull/56593
github_pr

[v2.15] Globalrole annotation cleanup

Fix merged in rancher/rancher PR #56642 on 2026-08-18 — awaiting tagged release

https://github.com/rancher/rancher/pull/56642

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 12× in last 7d / 31× 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. 2026-09-20 22:16 UTCEG score recompute
  2. 2026-09-20 20:16 UTCEPSS rescore
  3. 2026-09-20 00:11 UTCEG score recompute
  4. 2026-09-19 02:06 UTCEG score recompute
  5. 2026-09-18 19:28 UTCEPSS rescore
  6. 2026-09-17 20:35 UTCEG score recompute
  7. 2026-09-16 18:35 UTCEG score recompute
  8. 2026-09-16 14:08 UTCEPSS rescore
  9. 2026-09-16 05:22 UTCEG score recompute
  10. 2026-09-16 05:15 UTCEPSS rescore
  11. 2026-09-15 06:45 UTCEG score recompute
  12. 2026-09-15 03:12 UTCEPSS rescore
  13. 2026-09-13 21:37 UTCEG score recompute
  14. 2026-09-12 23:31 UTCEG score recompute
  15. 2026-09-12 15:02 UTCEPSS rescore
  16. 2026-09-12 01:25 UTCEG score recompute
  17. 2026-09-11 14:53 UTCEPSS rescore
  18. 2026-09-11 14:22 UTCEG score recompute
  19. 2026-09-10 16:16 UTCEG score recompute
  20. 2026-09-10 09:35 UTCEPSS rescore
  21. 2026-09-09 07:06 UTCEG score recompute
  22. 2026-09-08 22:01 UTCEPSS rescore
  23. 2026-09-07 20:05 UTCEG score recompute
  24. 2026-09-06 21:55 UTCEG score recompute
  25. 2026-09-06 13:48 UTCEPSS rescore
Show 6 more
  1. 2026-09-05 23:49 UTCEG score recompute
  2. 2026-09-04 14:39 UTCEG score recompute
  3. 2026-09-03 16:33 UTCEG score recompute
  4. 2026-09-03 15:25 UTCEG score recompute
  5. 2026-09-03 14:59 UTCEG score recompute
  6. 2026-09-03 14:58 UTCMITRE cvelistV5first tracked

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Frequently asked(5)

What is CVE-2026-71404?
CVE-2026-71404 is a high vulnerability published on September 3, 2026. A flaw was found in Rancher Manager. The GlobalRole controller derived the target ClusterRole name from the user-settable authz.management.cattle.io/cr-name annotation and overwrote that object's rules without verifying ownership. A user with delegated GlobalRole create or update permission could…
When was CVE-2026-71404 disclosed?
CVE-2026-71404 was first published in the National Vulnerability Database on September 3, 2026, with the most recent update on September 18, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-71404 actively exploited?
CVE-2026-71404 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 84.5% of all scored CVEs.
What is the CVSS score of CVE-2026-71404?
CVE-2026-71404 has a CVSS v3 base score of 8.7 (NVD).
How do I remediate CVE-2026-71404?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-71404, 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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