Sporkmonger Addressable up to 2.9.0 Template Template#match resource consumption

Summaryinfo

A vulnerability described as problematic has been identified in Sporkmonger Addressable up to 2.9.0. This vulnerability affects the function Template#match of the component Template. The manipulation results in resource consumption. This vulnerability is known as CVE-2026-126350. It is possible to launch the attack remotely. No exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Sporkmonger Addressable up to 2.9.0. It has been classified as problematic. Affected is the function Template#match of the component Template. The manipulation with an unknown input leads to a resource consumption vulnerability. CWE is classifying the issue as CWE-400. The product does not properly control the allocation and maintenance of a limited resource. This is going to have an impact on availability. CVE summarizes:

Addressable is an alternative implementation to the URI implementation that is part of Ruby's standard library. From 2.3.0 until 2.9.1, URI template expressions using the explode modifier with the slash, dot, semicolon, question-mark, or ampersand operators generate ambiguous regular expressions. When Template#match or Template#extract processes an attacker-controlled URI beginning with the operator's leading character, optional member separators allow catastrophic backtracking and denial of service on MRI Ruby before 3.2 and JRuby. Addressable 2.9.0 incompletely remediated the earlier template issue because its tests did not reach these operator-prefixed paths. URI parsing and Template#expand are unaffected. This issue is fixed in version 2.9.1.

The advisory is shared for download at github.com. This vulnerability is traded as CVE-2026-126350 since 11/10/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1499.

Upgrading to version 2.9.1 eliminates this vulnerability.

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Productinfo

Vendor

• Sporkmonger

Name

• Addressable

Version

• 2.0
• 2.1
• 2.2
• 2.3
• 2.4
• 2.5
• 2.6
• 2.7
• 2.8
• 2.9.0

Website

• Product: https://github.com/sporkmonger/addressable/

CPE 2.3info

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