What’s Vulnerable › Vulnerabilities

CVE-2019-9942

• Severity: low (CVSS 3.7 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2019-03-23 · updated 2026-06-17

Description

A sandbox information disclosure exists in Twig before 1.38.0 and 2.x before 2.7.0 because, under some circumstances, it is possible to call the __toString() method on an object even if not allowed by the security policy in place.

Affected products

• Debian Linux: 9.0
• twigphp Twig: before 1.38.0; from 2.0.0 before 2.7.0 — fixed in 1.38.0, 2.7.0

How to fix

Upgrade to a fixed version: twigphp Twig 1.38.0, 2.7.0. Check the vendor advisory for mitigations.

References

• https://github.com/twigphp/Twig/commit/eac5422956e1dcca89a3669a03a3ff32f0502077
• https://seclists.org/bugtraq/2019/Mar/60
• https://symfony.com/blog/twig-sandbox-information-disclosure
• https://www.debian.org/security/2019/dsa-4419
• https://github.com/twigphp/Twig/commit/eac5422956e1dcca89a3669a03a3ff32f0502077
• https://seclists.org/bugtraq/2019/Mar/60
• https://symfony.com/blog/twig-sandbox-information-disclosure
• https://www.debian.org/security/2019/dsa-4419

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