Twig: Sandbox state regression in deprecated internal wrappers in `src/Resources/core.php`
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-693.
Summary
Twig is a template language for PHP. Prior to 3.27.0, deprecated internal wrappers in src/Resources/core.php do not forward the current sandbox state to CoreExtension::checkArrow(), arraySome(), and arrayEvery(), allowing legacy calls such as twig_array_some(), twig_array_every(), and twig_check_arrow_in_sandbox() to bypass sandbox callable restrictions. This issue is fixed in version 3.27.0.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| symfony | Twig | before 3.27.0 | 3.27.0 | Patch available | CNA |
| — | twig/twig (Packagist) | before 3.27.0 | 3.27.0 | Patch available | GHSA-p42q-9prx-q5wq |
- Twig Vendorsymfony Affected before 3.27.0 Fixed in 3.27.0 Patch available CNA
- twig/twig (Packagist) Vendor— Affected before 3.27.0 Fixed in 3.27.0 Patch available GHSA-p42q-9prx-q5wq
Remediation
- Fix · CNA Twig (twigphp) Fixed in 3.27.0
- Fix · GHSA-p42q-9prx-q5wq twig/twig (Packagist) Fixed in 3.27.0 Advisory →
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2026-48805
- 2026-10-03 Alias added: GHSA-p42q-9prx-q5wq
References
Other 4
More symfony Twig vulnerabilities
- TI-2026-34283 Twig: The `spaceless` filter implicitly marks its output as safe CVSS 4.0MEDIUM 5.1
- TI-2022-07667 Code injection in Twig CVSS 3.1CRITICAL 9.8
- TI-2018-10028 Twig before 2.4.4 allows Server-Side Template Injection (SSTI) via the search search_key… CVSS 3.0CRITICAL 9.8
- TI-2022-18637 Twig may load a template outside a configured directory when using the filesystem loader CVSS 3.1HIGH 7.5
- TI-2026-34292 Twig: Arbitrary PHP code execution via `_self.(<string>)` macro-reference compilation CVSS 4.0HIGH 8.7
- TI-2026-34285 Twig: PHP code injection via `{% use %}` template name CVSS 4.0HIGH 8.7
Sources
- CVE-2026-48805 · CVE Program
- CVE-2026-48805 · NVD
- FIRST EPSS
- GHSA-p42q-9prx-q5wq · GitHub Advisory Database · CC BY 4.0
- CVE-2026-48805 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences