CVE-2026-41706

Spring Security's CookieRequestCache and CookieServerRequestCache store the pre-authentication request URL in a browser cookie so that users can be redirected back to their intended destination after a successful login. In affected versions, the full absolute URL is stored in the cookie and is us...

CVE-2026-41008

Spring Security Authorization Server's authorization endpoint performs insufficient validation of the requesturi parameter. An attacker can craft a malicious authorization request containing an invalid requesturi and an arbitrary, unvalidated redirecturi, which can lead to an Open Redirect...

CVE-2026-40997: Generation of Error Message Containing Sensitive Information

Several Spring WS integration paths with Spring Security could surface detailed account state for example locked or disabled user semantics to remote SOAP clients through exception messages or callback outcomes, instead of failing with generic authentication errors. That behavior assists remote...

PT-2026-48620

Name of the Vulnerable Software and Affected Versions Spring Web Services versions 5.0.0 through 5.0.1 Spring Web Services versions 4.1.0 through 4.1.3 Spring Web Services versions 4.0.0 through 4.0.18 Spring Web Services versions 3.1.0 through 3.1.8 Description Integration paths between Spring W...

Improper Handling of Highly Compressed Data (Data Amplification)

Overview org.springframework.security:spring-security-saml2-service-provider is a security component for the Spring Framework. Affected versions of this package are vulnerable to Improper Handling of Highly Compressed Data Data Amplification in the REDIRECT binding. An attacker can exhaust system...

Cross-site Scripting (XSS)

Overview org.springframework.security:spring-security-saml2-service-provider is a security component for the Spring Framework. Affected versions of this package are vulnerable to Cross-site Scripting XSS via the RelyingPartyRegistration function. An attacker can execute arbitrary scripts in the...

Open Redirect

Overview org.springframework.security:spring-security-web is a package within Spring Security that provides security services for the Spring IO Platform. Affected versions of this package are vulnerable to Open Redirect in the CookieRequestCache function. An attacker can redirect users to arbitra...

EUVD-2026-35911

SubjectDnX509PrincipalExtractor does not correctly handle certain malformed X.509 certificate CN values, which can lead to reading the wrong value for the username. In a carefully crafted certificate, this can lead to an attacker impersonating another user. Affected versions: Spring Security 5.7....

Spring Security Vulnerable to Unauthorized User Impersonation when Using X.509 Client Certificates

In Spring Security Web, SubjectDnX509PrincipalExtractor does not correctly handle certain malformed X.509 certificate CN values, which can lead to reading the wrong value for the username. In a carefully crafted certificate, this can lead to an attacker impersonating another user...

GHSA-293Q-567P-WMWQ Spring Security Vulnerable to Unauthorized User Impersonation when Using X.509 Client Certificates

In Spring Security Web, SubjectDnX509PrincipalExtractor does not correctly handle certain malformed X.509 certificate CN values, which can lead to reading the wrong value for the username. In a carefully crafted certificate, this can lead to an attacker impersonating another user...

EUVD-2026-35896

Spring Security's CookieRequestCache and CookieServerRequestCache store the pre-authentication request URL in a browser cookie so that users can be redirected back to their intended destination after a successful login. In affected versions, the full absolute URL is stored in the cookie and is us...

GHSA-X2R2-RVHQ-2MQV Spring Security: Open Redirect via Unvalidated Post-Login Redirect URL Stored in CookieRequestCache

Spring Security's CookieRequestCache and CookieServerRequestCache store the pre-authentication request URL in a browser cookie so that users can be redirected back to their intended destination after a successful login. In affected versions, the full absolute URL is stored in the cookie and is us...

Spring Security SAML2 Service Provider: Decryption Oracle Vulnerability from Unsigned SAML Response and Logout Payloads

Since Spring Security SAML decrypts SAML Responses as well as elements of SAML LogoutRequests and LogoutResponses without requiring a valid signature, attackers may be able to craft these SAML payloads and use the Service Provider as a decryption oracle. Affected versions: Spring Security 5.7.0...

Spring Security OAuth2 Authorization Server: Authorization endpoint performs insufficient validation of the request_uri parameter

Spring Security Authorization Server's authorization endpoint performs insufficient validation of the requesturi parameter. An attacker can craft a malicious authorization request containing an invalid requesturi and an arbitrary, unvalidated redirecturi, which can lead to an Open Redirect...

Spring Security SAML2 Service Provider: RelyingPartyRegistration may run arbitrary code on HTML forms generated by Spring Security filters

An attacker able to influence values in RelyingPartyRegistration may be able to run arbitrary code on HTML forms generated by Spring Security filters. Affected versions: Spring Security 5.7.0 through 5.7.23; 5.8.0 through 5.8.25; 6.3.0 through 6.3.16; 6.4.0 through 6.4.16; 6.5.0 through 6.5.10;...

GHSA-2Q7C-5GJM-7Q23 Spring Security SAML2 Service Provider is vulnerable to Deserialization of Untrusted Data via JdbcAssertingPartyMetadataRepository

An attacker with write permissions to the database table managed by JdbcAssertingPartyMetadataRepository saml2assertingpartymetadata may be able to store malicious serialized payloads in the columns containing the collection of verification or encryption credentials verificationcredentials and...

GHSA-M69X-PW9P-7J3Q Spring Security SAML2 Service Provider: Unbounded writer inflates the compressed SAML payload into memory (DoS)

An application using spring-security-saml2-service-provider and the REDIRECT binding for SAML 2.0 Login or Logout may be vulnerable to a denial of service by way of an unbounded writer that inflates the compressed SAML payload into memory. Affected versions: Spring Security 5.7.0 through 5.7.23;...

GHSA-WW38-37G9-M3Q3 Spring Security SAML2 Service Provider: Decryption Oracle Vulnerability from Unsigned SAML Response and Logout Payloads

Since Spring Security SAML decrypts SAML Responses as well as elements of SAML LogoutRequests and LogoutResponses without requiring a valid signature, attackers may be able to craft these SAML payloads and use the Service Provider as a decryption oracle. Affected versions: Spring Security 5.7.0...

EUVD-2026-35886

An attacker with write permissions to the database table managed by JdbcAssertingPartyMetadataRepository saml2assertingpartymetadata may be able to store malicious serialized payloads in the columns containing the collection of verification or encryption credentials verificationcredentials and...

EUVD-2026-35887

An attacker able to influence values in RelyingPartyRegistration may be able to run arbitrary code on HTML forms generated by Spring Security filters. Affected versions: Spring Security 5.7.0 through 5.7.23; 5.8.0 through 5.8.25; 6.3.0 through 6.3.16; 6.4.0 through 6.4.16; 6.5.0 through 6.5.10;...