CVE-2026-24425

Twig versions 2.16.x and 3.9.0 through 3.25.x contain a sandbox bypass vulnerability when using a SourcePolicyInterface that allows attackers with template rendering capabilities to pass arbitrary PHP callables to sort, filter, map, and reduce filters. Attackers can exploit the runtime check that fails to use the current template source to bypass sandbox restrictions and execute arbitrary code when the sandbox is enabled through a source policy rather than globally.

CVSS v3 8.8 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/twigphp/Twig/releases/tag/v3.26.0	Product Release Notes
https://github.com/twigphp/Twig/security/advisories/GHSA-2q52-x2ff-qgfr	Vendor Advisory
https://www.vulncheck.com/advisories/twig-x-x-sandbox-bypass-via-sourcepolicyinterface	Third Party Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:symfony:twig::::::::
	cpe:2.3:a:symfony:twig::::::::

History

02 Jun 2026, 00:58

Type	Values Removed	Values Added
CPE		cpe:2.3:a:symfony:twig::::::::
References	~~() https://github.com/twigphp/Twig/releases/tag/v3.26.0 -~~	() https://github.com/twigphp/Twig/releases/tag/v3.26.0 - Product, Release Notes
References	~~() https://github.com/twigphp/Twig/security/advisories/GHSA-2q52-x2ff-qgfr -~~	() https://github.com/twigphp/Twig/security/advisories/GHSA-2q52-x2ff-qgfr - Vendor Advisory
References	~~() https://www.vulncheck.com/advisories/twig-x-x-sandbox-bypass-via-sourcepolicyinterface -~~	() https://www.vulncheck.com/advisories/twig-x-x-sandbox-bypass-via-sourcepolicyinterface - Third Party Advisory
First Time		Symfony twig Symfony

20 May 2026, 14:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-05-20 14:16

Updated : 2026-06-02 00:58

NVD link : CVE-2026-24425

Mitre link : CVE-2026-24425

CVE.ORG link : CVE-2026-24425

JSON object : View

Products Affected

symfony

twig

CWE

CWE-693

Protection Mechanism Failure

{"id": "CVE-2026-24425", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "disclosure@vulncheck.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.8, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 2.8}, {"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 9.9, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 6.0, "exploitabilityScore": 3.1}], "cvssMetricV40": [{"type": "Secondary", "source": "disclosure@vulncheck.com", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 8.7, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "HIGH", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED"}}]}, "published": "2026-05-20T14:16:38.917", "references": [{"url": "https://github.com/twigphp/Twig/releases/tag/v3.26.0", "tags": ["Product", "Release Notes"], "source": "disclosure@vulncheck.com"}, {"url": "https://github.com/twigphp/Twig/security/advisories/GHSA-2q52-x2ff-qgfr", "tags": ["Vendor Advisory"], "source": "disclosure@vulncheck.com"}, {"url": "https://www.vulncheck.com/advisories/twig-x-x-sandbox-bypass-via-sourcepolicyinterface", "tags": ["Third Party Advisory"], "source": "disclosure@vulncheck.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "disclosure@vulncheck.com", "description": [{"lang": "en", "value": "CWE-693"}]}], "descriptions": [{"lang": "en", "value": "Twig versions 2.16.x and 3.9.0 through 3.25.x contain a sandbox bypass vulnerability when using a SourcePolicyInterface that allows attackers with template rendering capabilities to pass arbitrary PHP callables to sort, filter, map, and reduce filters. Attackers can exploit the runtime check that fails to use the current template source to bypass sandbox restrictions and execute arbitrary code when the sandbox is enabled through a source policy rather than globally."}], "lastModified": "2026-06-02T00:58:58.103", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:symfony:twig:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "41D01EA0-D23D-49BC-822F-F3643259E4CA", "versionEndIncluding": "2.16.1", "versionStartIncluding": "2.16.0"}, {"criteria": "cpe:2.3:a:symfony:twig:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "CC2950BA-8936-46D6-B9AD-F5595FACA2E8", "versionEndExcluding": "3.26.0", "versionStartIncluding": "3.9.0"}], "operator": "OR"}]}], "sourceIdentifier": "disclosure@vulncheck.com"}