CVE-2026-46629

MEDIUM

Twig: Unbounded formatter memoisation in twig/intl-extra keyed on template-controlled arguments

Title source: cna
STIX 2.1

Description

Twig is a template language for PHP. Prior to 3.26.0, twig/intl-extra memoises IntlDateFormatter and NumberFormatter instances in arrays keyed by template-controlled filter arguments such as locale, pattern, and attrs, allowing a template to allocate many ICU formatter objects that remain pinned for the lifetime of the Twig\Environment. This issue is fixed in version 3.26.0.

References (3)

Core 3

Scores

CVSS v3 6.5
EPSS 0.0030
EPSS Percentile 22.5%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-770
Status published
Products (2)
symfony/twig < 3.26.0
twigphp/Twig < 3.26.0
Published Jul 14, 2026
Tracked Since Jul 15, 2026