CVE-2026-47732: CWE-863: Incorrect Authorization in twigphp Twig
Twig versions prior to 3.26.0 contain an authorization vulnerability where certain language constructs cause PHP string coercion on Stringable objects without proper security checks. This allows sandboxed template authors to invoke the __toString() method on objects accessible in the rendering context, potentially bypassing intended sandbox restrictions. The issue is resolved in version 3.26.0.
AI Analysis
Technical Summary
CVE-2026-47732 is an incorrect authorization vulnerability (CWE-863) in twigphp Twig prior to version 3.26.0. Several Twig language constructs trigger PHP string coercion on Stringable operands without invoking SecurityPolicy::checkMethodAllowed(), enabling a sandboxed template author to call __toString() on objects reachable in the render context. This can occur through conditional expressions, comparison operators, tests, template-loading tags, dynamic attribute names, spread arguments, the do tag, and the .. range operator. The vulnerability is fixed in Twig version 3.26.0.
Potential Impact
An attacker with the ability to author sandboxed templates can bypass sandbox restrictions to invoke __toString() on objects in the rendering context. This may lead to unauthorized information disclosure or other unintended behavior depending on the __toString() implementations of those objects. The vulnerability does not require user interaction and has a high severity rating (CVSS 7.1).
Mitigation Recommendations
Upgrade Twig to version 3.26.0 or later, where this authorization issue is fixed. Patch status is confirmed by the vendor advisory indicating the fix in 3.26.0. No other mitigations are specified.
CVE-2026-47732: CWE-863: Incorrect Authorization in twigphp Twig
Description
Twig versions prior to 3.26.0 contain an authorization vulnerability where certain language constructs cause PHP string coercion on Stringable objects without proper security checks. This allows sandboxed template authors to invoke the __toString() method on objects accessible in the rendering context, potentially bypassing intended sandbox restrictions. The issue is resolved in version 3.26.0.
CVSS v4.0
Score 7.1high
Affected software
Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-47732 is an incorrect authorization vulnerability (CWE-863) in twigphp Twig prior to version 3.26.0. Several Twig language constructs trigger PHP string coercion on Stringable operands without invoking SecurityPolicy::checkMethodAllowed(), enabling a sandboxed template author to call __toString() on objects reachable in the render context. This can occur through conditional expressions, comparison operators, tests, template-loading tags, dynamic attribute names, spread arguments, the do tag, and the .. range operator. The vulnerability is fixed in Twig version 3.26.0.
Potential Impact
An attacker with the ability to author sandboxed templates can bypass sandbox restrictions to invoke __toString() on objects in the rendering context. This may lead to unauthorized information disclosure or other unintended behavior depending on the __toString() implementations of those objects. The vulnerability does not require user interaction and has a high severity rating (CVSS 7.1).
Mitigation Recommendations
Upgrade Twig to version 3.26.0 or later, where this authorization issue is fixed. Patch status is confirmed by the vendor advisory indicating the fix in 3.26.0. No other mitigations are specified.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-05-19T22:16:39.503Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a56aea268715ace4342b115
Added to database: 07/14/2026, 21:48:18 UTC
Last enriched: 07/21/2026, 22:44:29 UTC
Last updated: 08/25/2026, 22:52:11 UTC
Views: 79
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.