CVE-2026-46629Disclosure(symfony / twig)

LOWCVSS 6.5 · MEDIUM

Signal is active with 1 mentions in latest observed window

Immediate actions

Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD 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.

symfony CVEs Back to dashboard

0.0/ 10 priority

Sources & remediation

Patch / fix

https://github.com/twigphp/Twig/commit/6add9066fc5c0455eb764c1f3af6e4e4e3562419

Vendor / third-party advisories

https://github.com/twigphp/Twig/security/advisories/GHSA-35wc-cvqg-78fp

Other references

https://github.com/twigphp/Twig/releases/tag/v3.26.0

Weakness type (CWE)

CWE-770

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

twig

Threat summary

1 mentions across 1 observed day

What's happening

Technical details provided in 1 signal
Disclosure: 1 classified signal
1 total mentions across 1 day

Affected systems

Vendors

symfony

Products

twig

Deep dive

Activity timeline1 mentions / 1d

Signal classification1 categories

Disclosure

1100.0%

Referenced assets1 URL

By indicator

https://symfony.com/blog/cve-2026-46629-unbounded-formatter-memoisation-in-twig-intl-extra-keyed-on-template-controlled-arguments

Full discourse1 post

Symfony@symfony143d
Disclosure
🔐 CVE-2026-46629: Unbounded formatter memoisation in twig/intl-extra keyed on template-controlled arguments ➡️ https://symfony.com/blog/cve-2026-46629-unbounded-formatter-memoisation-in-twig-intl-extra-keyed-on-template-controlled-arguments
Post summary
The tweet announces CVE-2026-46629, detailing an unbounded formatter memoisation vulnerability in Symfony's Twig/Intl-Extra, but provides no PoC, exploit, active exploitation, or patch information.
020901.6K
45.2K followersView on X

CPE platform detail1 entries

Part:

Vendor:

Product:

Version:

Target SW:

Target HW:

1 of 1 entries

Part	Vendor	Product	Version	Target SW	Target HW
App	symfony	twig	-	-	-

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