CVE-2021-4250

cgriego active_attr Regex boolean_typecaster.rb call denial of service

HIGH
7.5
CVSS Score
Published: December 18, 2022 at 12:00 AM UTC
Updated: June 17, 2026 at 04:19 AM UTC
2 products affected across 2 vendorsActive AttrAttr Project Active Attr

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Severity
HIGH7.5
Exploit prediction
EPSS 1%

Description

A vulnerability classified as problematic has been found in cgriego active_attr up to 0.15.2. This affects the function call of the file lib/active_attr/typecasting/boolean_typecaster.rb of the component Regex Handler. The manipulation of the argument value leads to denial of service. The exploit has been disclosed to the public and may be used. Upgrading to version 0.15.3 is able to address this issue. The name of the patch is dab95e5843b01525444b82bd7b336ef1d79377df. It is recommended to upgrade the affected component. The associated identifier of this vulnerability is VDB-216207.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 0.15.3
Affected range stops below 0.15.3, so it looks safe — our inference, not a vendor statement

References (5)

ExploitIssue TrackingPatchThird Party Advisory
https://github.com/cgriego/active_attr/issues/184
Technical DescriptionVDB EntryThird Party Advisory
https://vuldb.com/?id.216207

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-404

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