CVE-2026-48806 twigphp CVE debrief

Who should care

Users of Twig template language for PHP, version prior to 3.27.0, should review and apply the patch to prevent exploitation. This includes developers, administrators, and security teams responsible for maintaining and securing systems that use the Twig template language for PHP.

Technical summary

The Twig template language for PHP, prior to version 3.27.0, has a vulnerability in ArrayExpression that allows dynamic mapping keys to be coerced to strings without proper guarding. This could potentially lead to code execution via __toString() method invocation. The vulnerability is fixed in version 3.27.0. Affected users of Twig template language for PHP should review and apply the patch to prevent exploitation. This includes developers, administrators, and security teams responsible for maintaining and securing systems that use the Twig template language for PHP. Evidence from the CVE record and NVD entry supports this mitigation strategy, emphasizing the importance of upgrading to version 3.27.0 or later to address the vulnerability.

Defensive priority

High priority for users of affected Twig versions due to potential for code execution.

Recommended defensive actions

• Review and apply the patch by upgrading to Twig version 3.27.0 or later.
• Inventory and verify the version of Twig in use.
• Monitor for potential exploitation attempts.
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up.
• Review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance.
• Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed.

Evidence notes

The CVE record and NVD entry provide details on the vulnerability and its mitigation. Evidence is limited to publicly available information from the CVE record and NVD entry. Defenders should verify the affected scope, severity, and vendor guidance. The vulnerability affects Twig template language for PHP, prior to version 3.27.0. Users should review and apply the patch to prevent exploitation. The CVE record was published on 2026-07-14T22:17:04.943Z and has not been modified since then.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.