Addressable
Monthly
Regular expression denial of service (ReDoS) in the Addressable Ruby library versions 2.3.0 through 2.8.x allows unauthenticated remote attackers to cause application-level denial of service through maliciously crafted URIs that trigger catastrophic backtracking in URI template expansion. The vulnerability affects URI templates using explode modifiers (e.g., {foo*}, {+var*}) and multi-variable templates with + or # operators (e.g., {+v1,v2,v3}), generating O(2^n) and O(n^k) complexity regex patterns respectively. EPSS exploitation probability and KEV status data not available; no public exploit identified at time of analysis. Vendor-released patch: version 2.9.0.
Addressable is an alternative implementation to the URI implementation that is part of Ruby's standard library. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Uncontrolled Resource Consumption vulnerability could allow attackers to cause denial of service by exhausting system resources.
Regular expression denial of service (ReDoS) in the Addressable Ruby library versions 2.3.0 through 2.8.x allows unauthenticated remote attackers to cause application-level denial of service through maliciously crafted URIs that trigger catastrophic backtracking in URI template expansion. The vulnerability affects URI templates using explode modifiers (e.g., {foo*}, {+var*}) and multi-variable templates with + or # operators (e.g., {+v1,v2,v3}), generating O(2^n) and O(n^k) complexity regex patterns respectively. EPSS exploitation probability and KEV status data not available; no public exploit identified at time of analysis. Vendor-released patch: version 2.9.0.
Addressable is an alternative implementation to the URI implementation that is part of Ruby's standard library. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Uncontrolled Resource Consumption vulnerability could allow attackers to cause denial of service by exhausting system resources.