Symfony
This hub aggregates every CVE we track for Symfony, a product in the oss libraries space. Use it to gauge the current risk picture and drill into individual advisories.
95
CVEs tracked
10
Critical
33
High
0
In CISA KEV
Severity distribution
MEDIUM47HIGH33CRITICAL10LOW5
Monthly trend
0
0
7
0
0
0
0
0
0
0
0
0
0
0
1
1
1
0
0
0
0
0
28
0
2024-092026-08
Latest CVEs
The 15 most recently published vulnerabilities affecting Symfony.
- CVE-2026-48761Symfony: HtmlSanitizer UrlAttributeSanitizer Misses URL Attributes on <object>, <applet>, <iframe>, <img> and the URL Inside <meta http-equiv="refresh"> content6.1
- CVE-2026-48747Symfony: Mailomat Mailer Webhook Parser Reads the HMAC Algorithm from the Request: Signature Algorithm Downgrade5.3
- CVE-2026-48489Symfony: Security Firewall Bypass via failure_forward Subrequest: Unauthenticated Access to access_control-Protected GET Routes7.5
- CVE-2026-48760Symfony: HtmlSanitizer URL Parser Deny Gates Underinclusive: Percent-Encoded BiDi Marks and Unicode Whitespace Bypass Visual-Spoofing Defense6.1
- CVE-2026-48736Symfony: IpUtils::PRIVATE_SUBNETS Omits IPv6 Transition Forms (6to4, NAT64, Teredo, IPv4-compatible): SSRF Bypass in NoPrivateNetworkHttpClient8.6
- CVE-2026-48784Symfony: UrlGenerator Dot-Segment Encoding Skips Every Other Chained `../` or `./` → Generated URL Collapses Off-Route Under RFC 3986 Normalization6.1
- CVE-2026-45068Symfony: Argument Injection in SendmailTransport via Dash-Prefixed Recipient Address7.5
- CVE-2026-47212Symfony: Twilio Notifier Webhook Parser Never Verifies the X-Twilio-Signature HMAC: Unauthenticated Webhook Event Injection5.3
- CVE-2026-45071Symfony: XXE (Local File Disclosure) in DomCrawler::addXmlContent() via validateOnParse = true7.5
- CVE-2026-45755Symfony: Mailtrap Mailer Webhook Parser Never Verifies the X-Mt-Signature HMAC — Unauthenticated Webhook Event Injection5.3
- CVE-2026-45754Symfony: Mailjet Mailer Webhook Parser Never Verifies the Configured Secret — Unauthenticated Webhook Event Injection5.3
- CVE-2026-45305Symfony: YAML Parser ReDoS via Catastrophic Backtracking in Parser::cleanup() Regex7.5
- CVE-2026-45304Symfony: YAML Parser Exponential Memory Allocation via Recursive Collection-Alias Expansion ("Billion Laughs")7.5
- CVE-2026-45069Symfony: OidcTokenHandler Accepts JWTs Missing aud/iss/exp Claims9.1
- CVE-2026-45133Symfony: [Yaml] Harden the parser when handling untrusted input7.5
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