# CVE-2024-51755: Twig has unguarded calls to `__isset()` and to array-accesses when the sandbox is enabled

Source: https://junglewise.ai/threats/cve-2024-51755-twig-has-unguarded-calls-to-isset-and-to-array-accesses-when-the  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2024-11-06  
License: CC BY 4.0 with a link back

CVE-2024-51755 · Severity: low · CVSS 3.1 · Published 2024-11-06

Twig has unguarded calls to `__isset()` and to array-accesses when the sandbox is enabled

Technologies: [twig/twig (Packagist)](https://junglewise.ai/threats/technologies/twig-twig). Vendors: [Packagist](https://junglewise.ai/threats/vendors/packagist).

## Quick answers

**Is CVE-2024-51755 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2024-51755 being exploited in the wild.

**How severe is CVE-2024-51755?** Low severity, with a CVSS score of 3.1, published 6 November 2024.

**Which products and versions are affected?** twig/twig (Packagist) ECOSYSTEM:introduced=0,fixed=3.11.2.

**Is there a fix for CVE-2024-51755?** Yes. twig/twig (Packagist): upgrade to 3.11.2 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected by CVE-2024-51755?** Check whether you run twig/twig (Packagist) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- twig/twig (Packagist): upgrade to 3.11.2 or later

  ```sh
  composer require twig/twig:^3.11.2
  ```


## Affected products

- twig/twig (Packagist) ECOSYSTEM:introduced=0,fixed=3.11.2

## Identifiers

- CVE-2024-51755
- GHSA-jjxq-ff2g-95vh

## Related threats

- [Twig sandbox allow-list bypass via template cache reuse](https://junglewise.ai/threats/cve-2026-49981-twig-sandbox-allow-list-bypass-via-template-cache-reuse)
- [Twig sandbox bypass in column filter via SourcePolicyInterface](https://junglewise.ai/threats/cve-2026-48808-twig-sandbox-bypass-in-column-filter-via-sourcepolicyinterface)
- [Twig sandbox policy bypass via Traversable objects in filters and operators](https://junglewise.ai/threats/cve-2026-48807-twig-sandbox-policy-bypass-via-traversable-objects-in-filters-and)
- [Twig sandbox policy bypass via dynamic mapping keys](https://junglewise.ai/threats/cve-2026-48806-twig-sandbox-policy-bypass-via-dynamic-mapping-keys)
- [Twig sandbox bypass in deprecated internal wrappers](https://junglewise.ai/threats/cve-2026-48805-twig-sandbox-bypass-in-deprecated-internal-wrappers)