RustFS is a distributed object storage system built in Rust. In versions 1.0.0-alpha.56 through 1.0.0-alpha.82, RustFS does not validate policy conditions in presigned POST uploads (PostObject), allowing attackers to bypass content-length-range, starts-with, and Content-Type constraints. This enables unauthorized file uploads exceeding size limits, uploads to arbitrary object keys, and content-type spoofing, potentially leading to storage exhaustion, unauthorized data access, and security bypasses. Version 1.0.0-alpha.83 fixes the issue.
References
| Link | Resource |
|---|---|
| https://github.com/rustfs/rustfs/security/advisories/GHSA-w5fh-f8xh-5x3p | Vendor Advisory |
Configurations
Configuration 1 (hide)
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History
25 Feb 2026, 15:37
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://github.com/rustfs/rustfs/security/advisories/GHSA-w5fh-f8xh-5x3p - Vendor Advisory | |
| First Time |
Rustfs rustfs
Rustfs |
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| CPE | cpe:2.3:a:rustfs:rustfs:1.0.0:alpha75:*:*:*:rust:*:* cpe:2.3:a:rustfs:rustfs:1.0.0:alpha56:*:*:*:rust:*:* cpe:2.3:a:rustfs:rustfs:1.0.0:alpha70:*:*:*:rust:*:* cpe:2.3:a:rustfs:rustfs:1.0.0:alpha69:*:*:*:rust:*:* cpe:2.3:a:rustfs:rustfs:1.0.0:alpha77:*:*:*:rust:*:* cpe:2.3:a:rustfs:rustfs:1.0.0:alpha58:*:*:*:rust:*:* cpe:2.3:a:rustfs:rustfs:1.0.0:alpha78:*:*:*:rust:*:* cpe:2.3:a:rustfs:rustfs:1.0.0:alpha57:*:*:*:rust:*:* cpe:2.3:a:rustfs:rustfs:1.0.0:alpha79:*:*:*:rust:*:* cpe:2.3:a:rustfs:rustfs:1.0.0:alpha61:*:*:*:rust:*:* cpe:2.3:a:rustfs:rustfs:1.0.0:alpha76:*:*:*:rust:*:* cpe:2.3:a:rustfs:rustfs:1.0.0:alpha67:*:*:*:rust:*:* cpe:2.3:a:rustfs:rustfs:1.0.0:alpha72:*:*:*:rust:*:* cpe:2.3:a:rustfs:rustfs:1.0.0:alpha65:*:*:*:rust:*:* cpe:2.3:a:rustfs:rustfs:1.0.0:alpha71:*:*:*:rust:*:* cpe:2.3:a:rustfs:rustfs:1.0.0:alpha81:*:*:*:rust:*:* cpe:2.3:a:rustfs:rustfs:1.0.0:alpha64:*:*:*:rust:*:* cpe:2.3:a:rustfs:rustfs:1.0.0:alpha74:*:*:*:rust:*:* cpe:2.3:a:rustfs:rustfs:1.0.0:alpha68:*:*:*:rust:*:* cpe:2.3:a:rustfs:rustfs:1.0.0:alpha80:*:*:*:rust:*:* cpe:2.3:a:rustfs:rustfs:1.0.0:alpha73:*:*:*:rust:*:* cpe:2.3:a:rustfs:rustfs:1.0.0:alpha59:*:*:*:rust:*:* cpe:2.3:a:rustfs:rustfs:1.0.0:alpha63:*:*:*:rust:*:* cpe:2.3:a:rustfs:rustfs:1.0.0:alpha62:*:*:*:rust:*:* cpe:2.3:a:rustfs:rustfs:1.0.0:alpha82:*:*:*:rust:*:* cpe:2.3:a:rustfs:rustfs:1.0.0:alpha60:*:*:*:rust:*:* cpe:2.3:a:rustfs:rustfs:1.0.0:alpha66:*:*:*:rust:*:* |
25 Feb 2026, 03:16
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-02-25 03:16
Updated : 2026-02-25 15:37
NVD link : CVE-2026-27607
Mitre link : CVE-2026-27607
CVE.ORG link : CVE-2026-27607
JSON object : View
Products Affected
rustfs
- rustfs