Medium 6.6Published Mar 23, 2026

CVE-2026-33202Rails Active Storage has possible glob injection in its DiskService

Updated under an hour ago (Oct 26, 2026, 6:10 PM ET)

Does this affect you?

It affects rails activestorage and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Do this next

Start free and add your stack

Free account, 1 product

Every CVE for rails activestorage

Exploited in the last 30 days

Active Storage allows users to attach cloud and local files in Rails applications. Prior to versions 8.1.2.1, 8.0.4.1, and 7.2.3.1, Active Storage's `DiskService#delete_prefixed` passes blob keys directly to `Dir.glob` without escaping glob metacharacters. If a blob key contains attacker-controlled input or custom-generated keys with glob metacharacters, it may be possible to delete unintended files from the storage directory. Versions 8.1.2.1, 8.0.4.1, and 7.2.3.1 contain a patch.

CVSS: 6.6 MEDIUM (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U
Weakness (CWE): CWE-74
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Analyzed
Record last updated: Mar 24, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

rails activestorage rails:activestorage (from the name)	from 8.1.0.beta1, < 8.1.2.1; from 8.0.0.beta1, < 8.0.4.1; before 7.2.3.1	CNA record
rubyonrails rails rubyonrails:rails	before 7.2.3.1; from 8.0.0 before 8.0.4.1; from 8.1.0 before 8.1.2.1	NVD

References

References

https://github.com/rails/rails/security/advisories/GHSA-73f9-jhhh-hr5m	x-refsource-confirm, vendor-advisory
https://github.com/rails/rails/commit/8c9676b803820110548cdb7523800db43bc6874c	x-refsource-misc, patch
https://github.com/rails/rails/commit/955284d26e469a9c026a4eee5b21f0414ab0bccf	x-refsource-misc, patch
https://github.com/rails/rails/commit/fa19073546360856e9f4dab221fc2c5d73a45e82	x-refsource-misc, patch
https://github.com/rails/rails/releases/tag/v7.2.3.1	x-refsource-misc, release-notes
https://github.com/rails/rails/releases/tag/v8.0.4.1	x-refsource-misc, release-notes
https://github.com/rails/rails/releases/tag/v8.1.2.1	x-refsource-misc, release-notes

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.