CVE-2026-48806 | Twig is a template language for PHP. Prior to 3.27.0, ArrayE… | CVSS 7.1 HIGH

Description

Twig is a template language for PHP. Prior to 3.27.0, ArrayExpression does not guard dynamic mapping keys that are coerced to strings, allowing PHP to invoke __toString() on a Stringable object used as a mapping key without calling SandboxExtension::ensureToStringAllowed(). This issue is fixed in version 3.27.0.

Metadata

CVE ID: CVE-2026-48806
State: PUBLISHED
Assigner: GitHub_M
Reserved: 2026-05-22 20:57 UTC
Published: 2026-07-14 21:28 UTC
Last updated: 2026-07-14 21:28 UTC
Primary CWE: CWE-693
CWE-693: Protection Mechanism Failure
Vendor / Product: twigphp / Twig
Sources: cve.org · NVD

Severity & Metrics

7.1 HIGH CVSS 4.0

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N

Affected products (1)

Vendor	Product	Platform	Versions
twigphp	Twig	—	< 3.27.0

Weakness (CWE)

CWE	Source	Description
CWE-693	cna	CWE-693: Protection Mechanism Failure
CWE-863	cna	CWE-863: Incorrect Authorization

CVSS scores (1)

Score	Severity	Version	Source	Vector
7.1	HIGH	4.0	cna	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N

References (3)

https://github.com/twigphp/Twig/security/advisories/GHSA-5v5v-ww74-355v https://github.com/twigphp/Twig/security/advisories/GHSA-5v5v-ww74-355v
https://github.com/twigphp/Twig/commit/9ff41014639ef0e8eb50ac7669191c309d863105 https://github.com/twigphp/Twig/commit/9ff41014639ef0e8eb50ac7669191c309d863105
https://github.com/twigphp/Twig/releases/tag/v3.27.0 https://github.com/twigphp/Twig/releases/tag/v3.27.0