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🛡️ CVE-2022-21831 — active-storage

🔴 CVSS 9.8 — Critical ✅ No Known Exploit CWE-94 NVD
9.8
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Possible code injection vulnerability in Rails / Active Storage

The Active Storage module of Rails starting with version 5.2.0 is possibly vulnerable to code injection. This issue was patched in versions 5.2.6.3, 6.0.4.7, 6.1.4.7, and 7.0.2.3. To work around this issue, applications should implement a strict allow-list on accepted transformation methods or arguments. Additionally, a strict ImageMagick security policy will help mitigate this issue.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability high.

CVSS metrics in full

The score comes from this vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

  • Attack vector: Network — reachable from anywhere that can route to the service.
  • Attack complexity: Low — the attack works reliably, with no preparation.
  • Privileges required: None — an unauthenticated stranger can try it.
  • User interaction: None — nobody has to be tricked into anything.
  • Scope: Unchanged — the damage stays inside the vulnerable component.
  • Confidentiality impact: High — total loss, or loss the attacker controls.
  • Integrity impact: High — total loss, or loss the attacker controls.
  • Availability impact: High — total loss, or loss the attacker controls.

Weakness class

CVE-2022-21831 is classified as CWE-94: Code Injection. Input is incorporated into code that the runtime evaluates, so an attacker can have their own code executed.

Affected software

CVE-2022-21831 is recorded against 3 packages.

  • active-storage (from 7.0.0 up to 7.0.2.3)
  • activestorage (from 7.0.0 up to 7.0.2.3)
  • debian-linux

Timeline and source

Published on 26 May 2022 and last revised on 17 June 2026. No public exploit is currently recorded for this entry. A vendor advisory or fix has been published. Record sourced from NVD.

References

github.com
lists.debian.org
security.netapp.com
www.debian.org
github.com
lists.debian.org
security.netapp.com
www.debian.org

Same weakness in other software

These advisories are the same class of weakness (CWE-94: Code Injection) in other software:

CVE-2022-21831 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Details

Severity CRITICAL
CVSS Score 9.8
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE CWE-94
Public Exploit ✅ No
Source NVD
Published 2022-05-26
Updated 2026-08-20
Modified 2026-06-17

Affected Packages

Software From version Fixed in
active-storage 7.0.0 7.0.2.3
activestorage 7.0.0 7.0.2.3
debian-linux — —

Exploit Protection

Are you running active-storage?

CVE-2022-21831 carries CVSS 9.8 Critical rating. BotEraser checks your installation against this and other known CVE records, and blocks IPs associated with exploit activity.

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ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.

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