CVE-2026-49981

Twig is a template language for PHP. Prior to 3.27.0, the per-template filter, tag, and function allow-list verdict is computed when a Template instance is constructed and can remain cached after sandbox state changes between renders, allowing a later sandboxed render to reuse a template that was originally checked with a different or empty policy. This issue is fixed in version 3.27.0.

CVSS v3 8.2 HIGH

8.2^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 4.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/twigphp/Twig/commit/23eb6eb1267cb0d303b91eb5cff9b0c559c538a4	Patch
https://github.com/twigphp/Twig/releases/tag/v3.27.0	Release Notes
https://github.com/twigphp/Twig/security/advisories/GHSA-529h-vh3j-85hq	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:symfony:twig:*:*:*:*:*:*:*:*

History

17 Jul 2026, 03:14

Type	Values Removed	Values Added
First Time		Symfony Symfony twig
CPE		cpe:2.3:a:symfony:twig::::::::
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 8.2
References	~~() https://github.com/twigphp/Twig/commit/23eb6eb1267cb0d303b91eb5cff9b0c559c538a4 -~~	() https://github.com/twigphp/Twig/commit/23eb6eb1267cb0d303b91eb5cff9b0c559c538a4 - Patch
References	~~() https://github.com/twigphp/Twig/releases/tag/v3.27.0 -~~	() https://github.com/twigphp/Twig/releases/tag/v3.27.0 - Release Notes
References	~~() https://github.com/twigphp/Twig/security/advisories/GHSA-529h-vh3j-85hq -~~	() https://github.com/twigphp/Twig/security/advisories/GHSA-529h-vh3j-85hq - Vendor Advisory

14 Jul 2026, 22:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-07-14 22:17

Updated : 2026-07-21 16:17

NVD link : CVE-2026-49981

Mitre link : CVE-2026-49981

CVE.ORG link : CVE-2026-49981

JSON object : View

Products Affected

symfony

twig

CWE

CWE-693

Protection Mechanism Failure

CWE-863

Incorrect Authorization

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