A code injection vulnerability exists in the Active Storage >= v5.2.0 that could allow an attacker to execute code via image_processing arguments.
CVE-2022-21831
This critical-severity CVE scores 9.8 under NVD CVSS v3. EPSS exploit probability: 2.9%, top 14% of all CVEs by exploit prediction. 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).
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 9.8
- EG Score
- 9.8(medium)
- EG Risk
- 50(Track)EG Risk 50/100SSVC: Track
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 computedSeverity98% × 45%Exploitation3% × 40%Automatability30% × 15%Action: Routine — remediate on your standard cadence. - EPSS
- 85.6%
- KEV
- Not listed
Published
May 26, 2022
Last Modified
November 21, 2024
Advisory Details (4)
Auto-updated Jun 8, 2026[SECURITY] [DLA 3093-1] rails security update
https://lists.debian.org/debian-lts-announce/2022/09/msg00002.htmlPossible code injection vulnerability in Rails / Active Storage · CVE-2022-21831 · GitHub Advisory Database · GitHub
Affected: versions 5.2.6.3, 6.0.4.7, 6.1.4.7, and 7.0.2.3. To work around this issue, appli
https://github.com/advisories/GHSA-w749-p3v6-hccqAffected Packages
(1 across 1 ecosystem)
RubyGems(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| activestorage | 7.0.0, 7.0.1, 7.0.2, 7.0.2.1, 7.0.2.2 | 7.0.2.3 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 14× in last 7d / 45× 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.
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Related CVEs(same CWE)
Same CWE
10 shownCWE-94
Frequently asked(5)
What is CVE-2022-21831?
When was CVE-2022-21831 disclosed?
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Dependency Blast Radius
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