Command execution via unsafe image transformation allowlist
Published Jan 30, 2026 · Updated Jan 30, 2026
Command injection in Rails Active Storage before 7.1.5.2, 7.2.2.2, and 8.0.2.1 allows remote attackers to execute commands. The default image-transformation allowlist accepts apply, loader, and saver, allowing untrusted variant names or nested arguments to reach MiniMagick command construction. Exposure requires image_processing with MiniMagick and attacker-controlled transformation methods or parameters, behavior Rails does not support by default.
Summary
What happened
Command injection in Rails Active Storage before 7.1.5.2, 7.2.2.2, and 8.0.2.1 allows remote attackers to execute commands. The default image-transformation allowlist accepts apply, loader, and saver, allowing untrusted variant names or nested arguments to reach MiniMagick command construction. Exposure requires image_processing with MiniMagick and attacker-controlled transformation methods or parameters, behavior Rails does not support by default.
The record
- CVE
- CVE-2025-24293
- Published
- Jan 30, 2026
- Updated
- Jan 30, 2026
- Vendor
- Rails
- Product
- Active Storage
- Classifications
- CWE-77, T1059, T1190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jan 30, 2026CVE publishedPublication date reported by the CVE source.
- Jan 30, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=5.2 <5.*
- Affected versionversion=7.0 <7.1.5.2
- Affected versionversion=8.0 <7.0.2.1
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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