CVE-2026-46633
Twig template engine allows PHP code injection via crafted {% use %} template names.
Is CVE-2026-46633 being exploited?
Not confirmed. CVE-2026-46633 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.69% probability of exploitation in the next 30 days.
How severe is CVE-2026-46633?
CVE-2026-46633 is rated High with a CVSS score of 8.7. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-46633?
Yes. A fix has been recorded for CVE-2026-46633. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-46633 affect?
CVE-2026-46633 affects Twig < 3.26.0, PHP applications using Twig (e.g., Symfony integrations). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-46633?
Upgrade to Twig 3.26.0+ and purge compiled cache; avoid untrusted template names.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Injects arbitrary PHP into compiled cache leading to remote code execution if attacker can supply a template name.
Immediate action required
- affected< 3.26.0
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.