CVE-2026-73288

MEDIUMPre-NVD 6.16.1—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 6.1 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4% (31st percentile of EPSS-scored CVEs). 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
6.1EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 6.1Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

RustFS is a distributed object storage system built in Rust. Prior to 1.0.0-rc.1, RustFS Object Lock enforcement in crates/ecstore/src/bucket/object_lock/objectlock_sys.rs lets check_object_lock_for_deletion, delete_prefix, and lifecycle and scanner sweeps treat ConfigNotFound, unreadable .metadata.bin data, or unparseable metadata as no lock configuration, allowing objects under COMPLIANCE retention to be deleted or expired. This issue is fixed in version 1.0.0-rc.1.

CVSS v3
6.1
EG Score
6.1MEDIUMmedium confidence
EG Risk
28
EG Risk 28/100CISA SSVC

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
Severity61% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.4%
EPSS %ILE
31st
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

August 12, 2026

Last Modified

September 9, 2026

Advisory Details (3)

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

RustFS 1.0.0-rc.1 (rc)

Patch available: rustfs/rustfs 1.0.0-rc.1 (pre-release)

https://github.com/rustfs/rustfs/releases/tag/1.0.0-rc.1
github_pr

fix: address rc.1 release blockers

Fix merged in rustfs/rustfs PR #5648 on 2026-08-03 — awaiting tagged release

https://github.com/rustfs/rustfs/pull/5648
githubMentions a patch (unverified)

Object Lock (WORM) protections are treated as absent when bucket metadata cannot be read, allowing retained objects to be deleted · Advisory · rustfs/rustfs · GitHub

https://github.com/rustfs/rustfs/security/advisories/GHSA-j548-9grx-fh4f

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 8× in last 7d / 39× 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. 2026-10-10 20:00 UTCEPSS rescore
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  1. 2026-09-20 10:15 UTCEG score recompute
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  24. 2026-09-04 05:07 UTCEPSS rescore
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  52. 2026-08-19 17:04 UTCEPSS rescore
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  59. 2026-08-16 14:56 UTCEPSS rescore
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  62. 2026-08-16 01:36 UTCEG score recompute
  63. 2026-08-15 01:31 UTCEPSS rescore
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  66. 2026-08-12 23:22 UTCEG score recompute
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  69. 2026-08-12 14:48 UTCEG score recompute
  70. 2026-08-12 14:48 UTCMITRE cvelistV5first tracked

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Frequently asked(5)

What is CVE-2026-73288?
CVE-2026-73288 is a medium vulnerability published on August 12, 2026. RustFS is a distributed object storage system built in Rust. Prior to 1.0.0-rc.1, RustFS Object Lock enforcement in crates/ecstore/src/bucket/objectlock/objectlocksys.rs lets checkobjectlockfordeletion, delete_prefix, and lifecycle and scanner sweeps treat ConfigNotFound, unreadable .metadata.bin…
When was CVE-2026-73288 disclosed?
CVE-2026-73288 was first published on August 12, 2026, with the most recent update on September 9, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-73288 actively exploited?
CVE-2026-73288 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (31st percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-73288?
CVE-2026-73288 has a CVSS base score of 6.1 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-73288?
A fix for CVE-2026-73288 is available: update to the fixed version the vendor names in its advisory.

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