CVE-2026-73288

RustFS: Object Lock (WORM) protections are treated as absent when bucket metadata cannot be read, allowing retained objects to be deleted

MEDIUM
6.1
CVSS Score
Published: August 12, 2026 at 02:42 PM UTC
Updated: September 9, 2026 at 09:17 PM UTC
1 product affected across 1 vendorRustfs

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Severity
MEDIUM6.1
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 1.0.0-rc.1
Affected range stops below 1.0.0-rc.1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.1MEDIUMGitHub_M
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-693CWE-754

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