Have found a security issue in Symfony? Send the details to
security [at] symfony.com and don't
disclose it publicly until we can provide a fix for it.
Manage your notification preferences to receive an email as soon as a Symfony security release is published.
XSS in profiler HtmlDumper via unescaped template and profile names
May 20, 2026
#Security Advisories
Arbitrary PHP code execution via `_self.(
May 20, 2026
#Security Advisories
Sandbox property and method bypass via object-destructuring assignment
May 20, 2026
#Security Advisories
`{% sandbox %}{% include %}` skips checkSecurity() on cached templates (incomplete fix for CVE-2024-45411)
May 20, 2026
#Security Advisories
HTML-output filters in twig/* extras incorrectly declared `is_safe => ['all']`
May 20, 2026
#Security Advisories
Sandbox property allowlist bypass via the `column` filter (array_column on objects)
May 20, 2026
#Security Advisories
`template_from_string()` escapes a SourcePolicy-driven sandbox via synthesized template name
May 20, 2026
#Security Advisories
PHP code injection via `{% use %}` template name
May 20, 2026
#Security Advisories
Unbounded formatter memoisation in twig/intl-extra keyed on template-controlled arguments
May 20, 2026
#Security Advisories
The `spaceless` filter implicitly marks its output as safe
May 20, 2026
#Security Advisories