critical
CVE-2026-126082
Rails activestorage before 8.0.5.2: Active Storage advisories - a CVSS 9.8 critical (CVE-2026-126082), Blob#open (8.8), service URL, filename and GCS handling, and blob data exposure
- Severity
- critical
- Affected product
- activestorage
- Affected versions
- activestorage < 8.0.5.2
- Affected versions
- activestorage ≥ 8.1.0, < 8.1.4.1
- Fixed in
- activestorage 8.0.5.2 (8.0 line) / 8.1.4.1
- Fixed in
- activestorage 8.1.4.1
- Detection basis
- Component version range
- Shipped rule
- activestorage: Rails activestorage before 8.0.5.2: Active Storage advisories - a CVSS 9.8 critical (CVE-2026-126082), Blob#open (8.8), service URL, filename and GCS handling, and blob data exposure
activestorage: Rails activestorage 8.1.0 before 8.1.4.1: Active Storage advisories - a CVSS 9.8 critical (CVE-2026-126082), Blob#open (8.8), service URL, filename and GCS handling, and blob data exposure - Added to NewScan
- 2026-11-11
- Detected by
- NewScan — free, self-hosted
How NewScan reports it
COMPONENT VERSION RANGE
NewScan fingerprints activestorage from its response and reports this CVE when the detected version falls inside the affected range below.
COMPONENT VERSION RANGE
NewScan fingerprints activestorage from its response and reports this CVE when the detected version falls inside the affected range below.
Related CVEs covered by this detection
The same shipped rule and upgrade also cover these identifiers:
References
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