CVE-2026-73284

HIGHPre-NVD 8.88.8—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.8 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.3%, top 80% 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
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.8Exploit: None knownExposed: 0

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

RustFS is a distributed object storage system built in Rust. RustFS AddServiceAccount in rustfs/src/admin/handlers/service_account.rs accepts an attacker-controlled target_user after only checking CreateServiceAccountAdminAction, passes it to new_service_account, and prepare_service_account_auth sets is_owner for the resulting root-parent service account. This issue is fixed in version 1.0.0-beta.11.

CVSS v3
8.8
EG Score
8.8(medium)
EG Risk
40(Track)
EG Risk 40/100SSVC: 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
Severity88% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
20%
KEV
Not listed

Published

August 12, 2026

Last Modified

August 12, 2026

Advisory Details (4)

Auto-updated Aug 12, 2026
Patch available. Sources: github, github_pr, github_commit, github_release.
github_release Patch Available

RustFS 1.0.0-beta.11 (beta)

Patch available: rustfs/rustfs 1.0.0-beta.11 (pre-release)

https://github.com/rustfs/rustfs/releases/tag/1.0.0-beta.11
github_commit

commit 9866f68d8648 (rustfs/rustfs)

Fix landed in rustfs/rustfs commit 9866f68d8648 — awaiting tagged release

https://github.com/rustfs/rustfs/commit/9866f68d86482b3de7e0058a908727c3815e72b9
github_pr

fix(admin): confine service-account parent to caller scope (GHSA-5354)

Fix merged in rustfs/rustfs PR #5141 on 2026-07-22 — awaiting tagged release

https://github.com/rustfs/rustfs/pull/5141
github Patch Available

Critical Privilege Escalation: AddServiceAccount Handler Allows Creation of Root-Parent Service Accounts in RustFS · Advisory · rustfs/rustfs · GitHub

https://github.com/rustfs/rustfs/security/advisories/GHSA-5354-r3w2-34m8

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 12× in last 7d / 38× 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 08:38 UTCEG score recompute
  3. 2026-08-28 21:42 UTCEPSS rescore
  4. 2026-08-27 19:37 UTCEG score recompute
  5. 2026-08-27 14:25 UTCEPSS rescore
  6. 2026-08-26 16:28 UTCEG score recompute
  7. 2026-08-26 14:47 UTCEPSS rescore
  8. 2026-08-25 14:49 UTCEG score recompute
  9. 2026-08-25 13:49 UTCEPSS rescore
  10. 2026-08-25 02:11 UTCEG score recompute
  11. 2026-08-24 13:33 UTCEG score recompute
  12. 2026-08-23 12:15 UTCEG score recompute
  13. 2026-08-23 00:19 UTCEPSS rescore
  14. 2026-08-22 10:57 UTCEG score recompute
  15. 2026-08-21 23:49 UTCEPSS rescore
  16. 2026-08-21 09:41 UTCEG score recompute
  17. 2026-08-20 22:56 UTCEPSS rescore
  18. 2026-08-19 19:44 UTCEG score recompute
  19. 2026-08-19 17:04 UTCEPSS rescore
  20. 2026-08-18 18:26 UTCEG score recompute
  21. 2026-08-18 13:49 UTCEPSS rescore
  22. 2026-08-18 13:49 UTCEPSS rescore
  23. 2026-08-17 17:06 UTCEG score recompute
  24. 2026-08-17 13:47 UTCEPSS rescore
  25. 2026-08-16 15:49 UTCEG score recompute
Show 13 more
  1. 2026-08-16 14:56 UTCEPSS rescore
  2. 2026-08-16 14:56 UTCEPSS rescore
  3. 2026-08-16 03:11 UTCEG score recompute
  4. 2026-08-16 02:15 UTCEPSS rescore
  5. 2026-08-15 01:54 UTCEG score recompute
  6. 2026-08-15 01:31 UTCEPSS rescore
  7. 2026-08-14 00:38 UTCEG score recompute
  8. 2026-08-13 22:00 UTCEPSS rescore
  9. 2026-08-12 23:22 UTCEG score recompute
  10. 2026-08-12 22:21 UTCEG score recompute
  11. 2026-08-12 15:25 UTCEG score recompute
  12. 2026-08-12 14:48 UTCEG score recompute
  13. 2026-08-12 14:48 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-73284?
CVE-2026-73284 is a high vulnerability published on August 12, 2026. RustFS is a distributed object storage system built in Rust. RustFS AddServiceAccount in rustfs/src/admin/handlers/serviceaccount.rs accepts an attacker-controlled targetuser after only checking CreateServiceAccountAdminAction, passes it to newserviceaccount, and prepareserviceaccountauth sets…
When was CVE-2026-73284 disclosed?
CVE-2026-73284 was first published in the National Vulnerability Database on August 12, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-73284 actively exploited?
CVE-2026-73284 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 79.6% of all scored CVEs.
What is the CVSS score of CVE-2026-73284?
CVE-2026-73284 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-73284?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-73284, 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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