CVE-2019-9942

Name: CVE-2019-9942
Creator: NVD / NIST
Published: 2019-03-23T15:29:00.323+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

LOWCVSS 3.7/10EPSS 1.41%

Last modified Jun 17, 2026

CVE-2019-9942 is a low-severity vulnerability rated 3.7/10 on the CVSS scale. 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.. EPSS estimates a 1.41% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

3.7/10

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

EPSS Probability

1.41%

69.1th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Symfony	Twig	< 1.38.0
Symfony	Twig	>= 2.0.0, < 2.7.0
Debian	Debian Linux	9.0

References

https://github.com/twigphp/Twig/commit/eac5422956e1dcca89a3669a03a3ff32f0502077Patch, Third Party Advisory
https://seclists.org/bugtraq/2019/Mar/60Mailing List, Third Party Advisory
https://symfony.com/blog/twig-sandbox-information-disclosurePatch, Vendor Advisory
https://www.debian.org/security/2019/dsa-4419Third Party Advisory
https://github.com/twigphp/Twig/commit/eac5422956e1dcca89a3669a03a3ff32f0502077Patch, Third Party Advisory
https://seclists.org/bugtraq/2019/Mar/60Mailing List, Third Party Advisory
https://symfony.com/blog/twig-sandbox-information-disclosurePatch, Vendor Advisory
https://www.debian.org/security/2019/dsa-4419Third Party Advisory

Timeline

Published: Mar 23, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-9942?

How severe is CVE-2019-9942?

CVE-2019-9942 has a CVSS score of 3.7/10 (LOW severity). The EPSS model estimates a 1.41% probability of exploitation in the next 30 days.

How do I fix CVE-2019-9942?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-9942?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST