CVE-2026-45305

Summary of CVE-2026-45305 (Symfony YAML Parser ReDoS) Symfony’s YAML handling (Symfony\Component\Yaml\Parser::cleanup) can hang parsing crafted input due to the use of overlapping quantifiers in regular expressions for YAML directive, comment, and document marker cleanup. This is a client-side pa...

CVE-2026-45304

Symfony is a PHP framework for web and console applications and a set of reusable PHP components. Prior to 5.4.52, 6.4.40, 7.4.12, and 8.0.12, Symfony\Component\Yaml\Parser resolved YAML collection aliases recursively, allowing a small untrusted YAML input to expand into a multi-gigabyte structur...

CVE-2026-45069

Symfony is a PHP framework for web and console applications and a set of reusable PHP components. Prior to 6.4.40, 7.4.12, and 8.0.12, OidcTokenHandler::verifyClaims registered audience aud, issuer iss, and expiry exp checkers but did not pass the mandatory claims list to...

CVE-2026-45069

CVE-2026-45069 concerns Symfony’s OidcTokenHandler, where verifyClaims() registered aud/iss/exp checkers but did not pass the mandatory claims list to ClaimCheckerManager::check(). Consequently, a validly signed JWT missing these claims could pass verification. The issue is fixed in Symfony relea...

CVE-2026-45133

Symfony is a PHP framework for web and console applications and a set of reusable PHP components. Prior to 5.4.52, 6.4.40, 7.4.12, and 8.0.12, when the parser is exposed to attacker-controlled input, deeply nested mappings or sequences cause both the block-level Parser::parseBlock and inline...

CVE-2026-45075 Symfony: HEAD Request Bypasses methods: ['GET'] Filter in #[IsGranted] / #[IsSignatureValid] / #[IsCsrfTokenValid]

Symfony is a PHP framework for web and console applications and a set of reusable PHP components. Prior to 7.4.12 and 8.0.12, method-scoped IsGranted, IsSignatureValid, and IsCsrfTokenValid attributes can be configured for GET only, but Symfony routes HEAD requests to the GET handler while the...

CVE-2026-47767

Symfony is a PHP framework for web and console applications and a set of reusable PHP components. From 5.4.46 until 5.4.52, 6.4.40, 7.4.12, and 8.0.12, the CVE-2024-50340 fix gated runtime argv parsing on empty$GET, but parsestr and the web SAPI can disagree, allowing a crafted query string to...

CVE-2026-47767

Symfony is a PHP framework for web and console applications and a set of reusable PHP components. From 5.4.46 until 5.4.52, 6.4.40, 7.4.12, and 8.0.12, the CVE-2024-50340 fix gated runtime argv parsing on empty$GET, but parsestr and the web SAPI can disagree, allowing a crafted query string to...

CVE-2026-45063

Symfony is a PHP framework for web and console applications and a set of reusable PHP components. Prior to 5.4.52, 6.4.40, 7.4.12, and 8.0.12, X509Authenticator extracts the user identifier from $SERVER'SSLCLIENTSDN' with an unanchored regex that matches emailAddress= anywhere in the distinguishe...

CVE-2026-45063

Symfony is a PHP framework for web and console applications and a set of reusable PHP components. Prior to 5.4.52, 6.4.40, 7.4.12, and 8.0.12, X509Authenticator extracts the user identifier from $SERVER'SSLCLIENTSDN' with an unanchored regex that matches emailAddress= anywhere in the distinguishe...

CVE-2026-45070

Symfony is a PHP framework for web and console applications and a set of reusable PHP components. Prior to 5.4.52, 6.4.40, 7.4.12, and 8.0.12, Symfony\Component\Mime\Header\ParameterizedHeader validates and encodes parameter values but emits parameter names verbatim, allowing a caller that derive...

CVE-2026-45070

Symfony is a PHP framework for web and console applications and a set of reusable PHP components. Prior to 5.4.52, 6.4.40, 7.4.12, and 8.0.12, Symfony\Component\Mime\Header\ParameterizedHeader validates and encodes parameter values but emits parameter names verbatim, allowing a caller that derive...

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

Symfony is a PHP framework for web and console applications and a set of reusable PHP components. Prior to 5.4.52, 6.4.40, 7.4.12, and 8.0.12, PdoAdapter::doClear builds a DELETE statement using a namespace derived from the caller-supplied $prefix without binding or escaping it, allowing a caller...

CVE-2026-45753

Symfony HtmlSanitizer UrlAttributeSanitizer omits action, formaction, poster, and cite URL-valued attributes, allowing javascript: URIs to bypass sanitization and enable XSS when forms or buttons are used. Affected: Symfony components prior to versions 6.4.40, 7.4.12, and 8.0.12. Mitigation: upgr...

CVE-2026-45074

Symfony is a PHP framework for web and console applications and a set of reusable PHP components. From 7.1.0 until 7.4.12 and 8.0.12, Cas2Handler builds the CAS service parameter from Request::getSchemeAndHttpHost, which reflects an attacker-controlled Host header when framework.trustedhosts is n...

PT-2026-51054

Name of the Vulnerable Software and Affected Versions Symfony UX LiveComponent versions prior to 2.x Symfony UX LiveComponent versions prior to 3.x Description Methods annotated with LiveAction in symfony/ux-live-component are invokable from the browser to mutate server-side state via AJAX. The...

Interpretation Conflict

Overview symfony/symfony is a PHP framework for web applications and a set of reusable PHP components. Affected versions of this package are vulnerable to Interpretation Conflict via the SymfonyRuntime::getInput process. An attacker can modify environment variables and enable debug mode by sendin...

Debian dsa-6317 : php-symfony - security update

The remote Debian 12 host has packages installed that are affected by multiple vulnerabilities as referenced in the dsa-6317 advisory. - ------------------------------------------------------------------------- Debian Security Advisory DSA-6317-1 [email protected] https://www.debian.org/securit...

[SECURITY] [DSA 6312-1] symfony security update

------------------------------------------------------------------------- Debian Security Advisory DSA-6312-1 [email protected] https://www.debian.org/security/ Moritz Muehlenhoff May 31, 2026 https://www.debian.org/security/faq -...

Improper Validation of Unsafe Equivalence in Input

Overview symfony/ux-live-component is a Live components for Symfony Affected versions of this package are vulnerable to Improper Validation of Unsafe Equivalence in Input via hydration of writable LiveProp properties typed as DateTimeInterface. An attacker can manipulate time-based application...