CVE-2026-24425

Name: CVE-2026-24425
Creator: NVD / NIST
Published: 2026-05-20T14:16:38.917+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.7/10EPSS 0.74%

Last modified Jun 17, 2026

CVE-2026-24425 is a high-severity vulnerability rated 8.7/10 on the CVSS scale. 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.. EPSS estimates a 0.74% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

9.9/10

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

CVSS 4.0

8.7/10

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

EPSS Probability

0.74%

49.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-693

Affected Software

Vendor	Product	Versions
Symfony	Twig	>= 2.16.0, <= 2.16.1
Symfony	Twig	>= 3.9.0, < 3.26.0

References

https://github.com/twigphp/Twig/releases/tag/v3.26.0Product, Release Notes
https://github.com/twigphp/Twig/security/advisories/GHSA-2q52-x2ff-qgfrVendor Advisory
https://www.vulncheck.com/advisories/twig-x-x-sandbox-bypass-via-sourcepolicyinterfaceThird Party Advisory

Timeline

Published: May 20, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-24425?

How severe is CVE-2026-24425?

CVE-2026-24425 has a CVSS score of 8.7/10 (HIGH severity). The EPSS model estimates a 0.74% probability of exploitation in the next 30 days.

How do I fix CVE-2026-24425?

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-2026-24425?

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

Scan your code now

Source: NVD / NIST