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symfony — Vulnerabilities & Security Advisories 65

Browse all 65 CVE security advisories affecting symfony. AI-powered Chinese analysis, POCs, and references for each vulnerability.

Symfony is an open-source PHP web framework designed to accelerate the development of web applications and APIs. With twenty-six recorded CVEs, its security history reflects typical risks associated with complex server-side logic. Common vulnerability classes include remote code execution, cross-site scripting, and improper access control, often stemming from input validation failures or insecure deserialization practices. The framework’s modular architecture allows developers to integrate security components, yet misconfigurations in routing or session handling have historically led to privilege escalation incidents. Notable security characteristics involve its robust dependency management, which mitigates supply chain risks, though outdated versions remain susceptible to known exploits. Security audits frequently highlight the importance of keeping dependencies updated to prevent exploitation of legacy code paths.

CVE IDTitleCVSSSeverityPublished
CVE-2026-49215 Symfony UX: CSRF Protection Bypass in symfony/ux-live-component — Accept Header is CORS-Safelisted — uxCWE-352--2026-07-17
CVE-2026-49216 Symfony UX: XSS in symfony/ux-autocomplete via unescaped AJAX response data — uxCWE-79--2026-07-17
CVE-2026-49211 Symfony UX: Information exposure via unescaped LIKE wildcards in EntitySearchUtil — uxCWE-200--2026-07-17
CVE-2026-49208 Symfony UX: Format-less date LiveProps parsed with the permissive DateTime constructor — uxCWE-20--2026-07-17
CVE-2026-49210 Symfony UX: XSS in symfony/ux-live-component via attacker-controlled child component tag — uxCWE-79--2026-07-17
CVE-2026-49212 Symfony UX: LiveComponentHydrator HMAC checksum lacks component and slot binding — uxCWE-345--2026-07-17
CVE-2026-49209 Symfony UX: Denial of service in symfony/ux-live-component via unbounded batch action requests — uxCWE-770--2026-07-17
CVE-2026-46644 symfony/polyfill-intl-idn accepts xn-- labels whose Punycode payload decodes to ASCII-only: insecure equivalence — polyfillCWE-1289--2026-07-14
CVE-2026-48761 Symfony: HtmlSanitizer UrlAttributeSanitizer Misses URL Attributes on <object>, <applet>, <iframe>, <img> and the URL Inside <meta http-equiv="refresh"> content — symfonyCWE-79--2026-07-14
CVE-2026-48747 Symfony: Mailomat Mailer Webhook Parser Reads the HMAC Algorithm from the Request: Signature Algorithm Downgrade — symfonyCWE-347--2026-07-14
CVE-2026-48489 Symfony: Security Firewall Bypass via failure_forward Subrequest: Unauthenticated Access to access_control-Protected GET Routes — symfonyCWE-863--2026-07-14
CVE-2026-48760 Symfony: HtmlSanitizer URL Parser Deny Gates Underinclusive: Percent-Encoded BiDi Marks and Unicode Whitespace Bypass Visual-Spoofing Defense — symfonyCWE-451--2026-07-14
CVE-2026-48736 Symfony: IpUtils::PRIVATE_SUBNETS Omits IPv6 Transition Forms (6to4, NAT64, Teredo, IPv4-compatible): SSRF Bypass in NoPrivateNetworkHttpClient — symfonyCWE-184--2026-07-14
CVE-2026-48784 Symfony: UrlGenerator Dot-Segment Encoding Skips Every Other Chained `../` or `./` → Generated URL Collapses Off-Route Under RFC 3986 Normalization — symfonyCWE-172--2026-07-14
CVE-2026-45068 Symfony: Argument Injection in SendmailTransport via Dash-Prefixed Recipient Address — symfonyCWE-88--2026-07-14
CVE-2026-47212 Symfony: Twilio Notifier Webhook Parser Never Verifies the X-Twilio-Signature HMAC: Unauthenticated Webhook Event Injection — symfonyCWE-306--2026-07-14
CVE-2026-45071 Symfony: XXE (Local File Disclosure) in DomCrawler::addXmlContent() via validateOnParse = true — symfonyCWE-611--2026-07-14
CVE-2026-45755 Symfony: Mailtrap Mailer Webhook Parser Never Verifies the X-Mt-Signature HMAC — Unauthenticated Webhook Event Injection — symfonyCWE-306--2026-07-14
CVE-2026-45754 Symfony: Mailjet Mailer Webhook Parser Never Verifies the Configured Secret — Unauthenticated Webhook Event Injection — symfonyCWE-287--2026-07-14
CVE-2026-45305 Symfony: YAML Parser ReDoS via Catastrophic Backtracking in Parser::cleanup() Regex — symfonyCWE-1333--2026-07-14
CVE-2026-45304 Symfony: YAML Parser Exponential Memory Allocation via Recursive Collection-Alias Expansion ("Billion Laughs") — symfonyCWE-776--2026-07-14
CVE-2026-45069 Symfony: OidcTokenHandler Accepts JWTs Missing aud/iss/exp Claims — symfonyCWE-345--2026-07-14
CVE-2026-45133 Symfony: [Yaml] Harden the parser when handling untrusted input — symfonyCWE-674--2026-07-14
CVE-2026-45075 Symfony: HEAD Request Bypasses methods: ['GET'] Filter in #[IsGranted] / #[IsSignatureValid] / #[IsCsrfTokenValid] — symfonyCWE-863--2026-07-14
CVE-2026-47767 Symfony: SymfonyRuntime CVE-2024-50340 Patch Bypass: Web Requests Can Still Set APP_ENV/APP_DEBUG via parse_str/SAPI Argv Mismatch — symfonyCWE-436--2026-07-14
CVE-2026-45064 Symfony: HtmlSanitizer URL Attributes Pass Through BiDi Override Characters → Visual href Spoofing — symfonyCWE-451--2026-07-14
CVE-2026-45063 Symfony: Identity Spoofing via Unanchored DN Regex in X509Authenticator — symfonyCWE-290--2026-07-14
CVE-2026-45070 Symfony: Email Header Injection via Non-Token Characters in Mime Parameter Names — symfonyCWE-93--2026-07-14
CVE-2026-45073 Symfony: SQL Injection in PdoAdapter::doClear() via Unsanitized $prefix — symfonyCWE-89--2026-07-14
CVE-2026-45753 Symfony: HtmlSanitizer UrlAttributeSanitizer Omits action/formaction/poster/cite — javascript: URI Survives Sanitization (XSS) — symfonyCWE-79--2026-07-14

This page lists every published CVE security advisory associated with symfony. Each entry links to a detailed page with CVSS scoring, CWE classification, affected products and references. AI-generated Chinese analysis is provided for fast triage.