CVE-2026-45067: Email Header / SMTP Command Injection via CRLF in Symfony\Component\Mime\Address

More info at https://symfony.com/cve-2026-45067...

CVE-2024-50343: Incorrect response from Validator when input ends with ` `

More info at https://symfony.com/cve-2024-50343...

CVE-2019-10911: Add a separator in the remember me cookie hash

More info at https://symfony.com/cve-2019-10911...

Unguarded calls to __toString() when nesting an object into an array

More info at https://symfony.com/blog/cve-2024-51754-unguarded-calls-to-tostring-in-a-sandbox-when-an-object-is-in-an-array-or-an-argument-list...

CVE-2020-15146: Remote Code Execution in OptionsParser while using request parameters inside expression language

Impact Request parameters injected inside an expression evaluated by symfony/expression-language package haven't been sanitized properly. This allows the attacker to access any public service by manipulating that request parameter, allowing for Remote Code Execution. The vulnerable versions...

Vulnerability to bypass two-factor authentication with remember-me option

Bundle version: 4.10.0 Symfony version: 3.4.31 Description Bypass 2fa by rememberme cookie To Reproduce We have a login form with rememberme checkbox functionality, When using the checkbox, symfony creates a cookie "REMEMBERME". That moment we get redirected to the 2fa-auth page. We have no acces...

Sandbox state regression in deprecated internal wrappers in `src/Resources/core.php`

More info at https://symfony.com/blog/cve-2026-48805-sandbox-state-regression-in-deprecated-internal-wrappers-in-src-resources-core-php...

PHP code injection via `{% use %}` template name

More info at https://symfony.com/cve-2026-46633...

The `spaceless` filter implicitly marks its output as safe

More info at https://symfony.com/cve-2026-46628...

Sandbox: multiple `__toString()` policy bypasses via unguarded string coercion points

More info at https://symfony.com/cve-2026-47732...

CVE-2026-45067: Email Header / SMTP Command Injection via CRLF in Symfony\Component\Mime\Address

More info at https://symfony.com/cve-2026-45067...

Deserialization Gadget chain in Swift Mailer

Summary Symfony 1 has a gadget chain due to vulnerable Swift Mailer dependency that would enable an attacker to get remote code execution if a developer unserialize user input in his project. Details This vulnerability present no direct threat but is a vector that will enable remote code executio...

CVE-2025-64500: Incorrect parsing of PATH_INFO can lead to limited authorization bypass

More info at https://symfony.com/blog/cve-2025-64500-incorrect-parsing-of-path-info-can-lead-to-limited-authorization-bypass...

CVE-2020-15143: Remote Code Execution in ParametersParser while using request parameters inside expression language

Impact Request parameters injected inside an expression evaluated by symfony/expression-language package haven't been sanitized properly. This allows the attacker to access any public service by manipulating that request parameter, allowing for Remote Code Execution. The vulnerable versions...

Sandbox does not protect against resource exhaustion

More info at https://symfony.com/cve-2026-46627...

CVE-2019-18886: Prevent user enumeration using switch user functionality

More info at https://symfony.com/cve-2019-18886...

Sandbox property allowlist bypass via the `column` filter under `SourcePolicyInterface`

More info at https://symfony.com/blog/cve-2026-48808-sandbox-property-allowlist-bypass-via-the-column-filter-under-sourcepolicyinterface...

CVE-2026-45073: SQL Injection in PdoAdapter::doClear() via Unsanitized $prefix

More info at https://symfony.com/cve-2026-45073...

Secret data exfiltration via symfony parameters

Impact Symfony parameters which is what Mautic transforms configuration parameters into can be used within other Symfony parameters by design. However, this also means that an admin who is normally not privy to certain parameters, such as database credentials, could expose them by leveraging any ...