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CVE-2026-33202 is a file deletion vulnerability in Rails Active Storage affecting versions prior to 8.1.2.1, 8.0.4.1, and 7.2.3.1. In the DiskService#delete_prefixed code path, blob keys are passed to Dir.glob without escaping glob metacharacters. When blob keys contain attacker-controlled input or custom-generated values that include wildcard or other glob pattern characters, the glob operation can match files beyond the intended target set within the Active Storage disk backend. This can result in unintended deletion of files from the storage directory. The issue was fixed by escaping glob metacharacters in the resolved path before invoking Dir.glob.
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What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
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Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
3 sources tracked across advisories and community write-ups. News coverage will land here when it surfaces.
No news coverage yet. Advisories and community discussion only.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.