Vulnerability DatabaseCVE-2026-48807
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CVE-2026-48807
Published:July 14, 2026
Updated:July 19, 2026
Twig is a template language for PHP. Prior to 3.27.0, the sandbox __toString() checks do not fully cover Traversable values passed to join and replace filters or operands evaluated by the in and not in operators, allowing contained Stringable objects to be coerced to strings without consulting the sandbox policy. This issue is fixed in version 3.27.0.
Affected Packages
twig/twig (PHP):
Affected version(s) >=dev-block-fix <v3.27.0
Fix Suggestion:
Update to version v3.27.0
twig/twig (PHP):
Affected version(s) >=v0.9.0 <v3.27.0
Fix Suggestion:
Update to version v3.27.0
Related Resources (5)
https://github.com/twigphp/Twig/releases/tag/v3.27.0
https://github.com/FriendsOfPHP/security-advisories/blob/master/twig/twig/CVE-2026-48807.yaml
https://github.com/twigphp/Twig
https://github.com/twigphp/Twig/security/advisories/GHSA-8x9c-rmqh-456c
https://symfony.com/blog/cve-2026-48807-sandbox-tostring-policy-bypass-via-traversable-in-join-replace-and-in-not-in-operators
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CVSS v4
Base Score:
7.1
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
LOW
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.1
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
LOW
Availability
NONE
Weakness Type (CWE)
Incorrect Authorization
CWE-863
Protection Mechanism Failure
CWE-693
EPSS
Base Score:
0.21