CVE-2026-72782

Craft CMS versions >= 5.0.0-RC1 before 5.10.6 and >= 4.0.0-RC1 before 4.18.2 interpolate environment variables and secrets (via ${ENV_VAR} strings in the elementId parameter) into Twig templates before rendering, even when the Twig sandbox is enabled. An authenticated attacker with control panel access can render a malicious sandboxed Twig template and, using a blind error-based technique across many requests, incrementally leak arbitrary environment variables and secrets. These can be abused to forge sessions (via CRAFT_SECURITY_KEY), escalate privileges, and steal database, SMTP, API, or blob storage credentials. Fixed in 5.10.6 and 4.18.2.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/craftcms/cms/security/advisories/GHSA-596p-6jv8-775v
https://www.vulncheck.com/advisories/craft-cms-rc1-before-environment-variable-leak

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-11 13:19

Updated : 2026-08-28 18:45

NVD link : CVE-2026-72782

Mitre link : CVE-2026-72782

CVE.ORG link : CVE-2026-72782

JSON object : View

Products Affected

No product.

CWE

CWE-668

Exposure of Resource to Wrong Sphere

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