CVE-2026-41727: Improper Input Validation

Spring Kafka's retry topic infrastructure did not sufficiently validate user-controlled header values before acting on them. A producer could send a record with a crafted retrytopic-attempts header to supply an out-of-range attempt count and cause the retry topic router to misidentify where the...

CVE-2026-41721: Uncontrolled Resource Consumption

Spring Data Commons contains a vulnerability that can lead to a Denial of Service DoS condition if Spring Data Web Support is enabled in conjunction with a Controller method using @ProjectedPayload, when an attacker sends a specially crafted HTTP request that causes the application to allocate lo...

CVE-2026-41726: Allocation of Resources Without Limits or Throttling

When an application opts into DelegatingDeserializer, a producer can grow the consumer's heap without bound by sending records with unique random spring.kafka.serialization.selector header values, eventually causing GC thrash and OutOfMemoryError. Affected versions: Spring for Apache Kafka 4.0.0...

CVE-2026-41701: Use of Insufficiently Random Values

Correlation IDs for replies in the RabbitTemplate.sendAndReceive with the fixed reply queue are predictable due to internal simple counter. Affected versions: Spring AMQP 4.0.0 through 4.0.3; 3.2.0 through 3.2.10; 3.1.0 through 3.1.15; 2.4.0 through 2.4.17...

CVE-2026-41706: URL Redirection to Untrusted Site

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-2026-41714: Improper Certificate Validation

Applications that configure their broker connection via RabbitConnectionFactoryBean.setUri"amqps://..." without also calling setUseSSLtrue get TLS encryption with no certificate validation and no hostname verification. Affected versions: Spring AMQP 4.0.0 through 4.0.3; 3.2.0 through 3.2.10; 3.1....

CVE-2026-41696: Improper Neutralization of Special Elements in Data Query Logic

Spring Data MongoDB repository query methods annotated with @Query that use regex parameter binding perform insufficient validation of the bound parameter. An attacker can supply a crafted string to break out of the intended regular expression quoting. Affected versions: Spring Data MongoDB 5.0.0...

CVE-2026-41008: URL Redirection to Untrusted Site

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-2026-41003: Improper Neutralization of Input During Web Page Generation

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;...

CVE-2026-40993: Deserialization of Untrusted Data

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...

CVE-2026-40988: Uncontrolled Resource Consumption

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;...

PT-2026-76012

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...

PT-2026-75985

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;...

PT-2026-75996

Applications that configure their broker connection via RabbitConnectionFactoryBean.setUri"amqps://..." without also calling setUseSSLtrue get TLS encryption with no certificate validation and no hostname verification. Affected versions: Spring AMQP 4.0.0 through 4.0.3; 3.2.0 through 3.2.10; 3.1....

PT-2026-75969

JsonPulsarHeaderMapper matched type headers against trusted packages using a prefix check, meaning that trusting any package implicitly trusted all of its subpackages. Additionally, an empty trusted-packages configuration fell back to trusting all packages rather than applying a safe default...

PT-2026-75928

Spring Kafka's retry topic infrastructure did not sufficiently validate user-controlled header values before acting on them. A producer could send a record with a crafted retry topic-attempts header to supply an out-of-range attempt count and cause the retry topic router to misidentify where the...

PT-2026-75919

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;...

PT-2026-75927

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

PT-2026-75933

Spring Data Commons contains a vulnerability that can lead to a Denial of Service DoS condition if Spring Data Web Support is enabled in conjunction with a Controller method using @ProjectedPayload, when an attacker sends a specially crafted HTTP request that causes the application to allocate lo...

PT-2026-75916

An attacker with write permissions to the database table managed by JdbcAssertingPartyMetadataRepository saml2 asserting party metadata may be able to store malicious serialized payloads in the columns containing the collection of verification or encryption credentials verification credentials an...