Authentication Bypass by Capture-replay vulnerability in Spring Spring Security allows Spring Security's DPoPProofJwtDecoderFactory contains a cache-based replay attack vulnerability. The internal cache storing JWT ID claims has a strict size limit, allowing attackers to evict legitimate entries by flooding the server with dummy requests, then replay intercepted valid DPoP proofs.

This issue affects Spring Security: 7.1.0, from 7.0.0 through 7.0.6, and from 6.5.0 through 6.5.11.

Spring Statemachine's Kryo-based persistence backends (JPA, MongoDB, Redis and ZooKeeper) deserialise persisted state-machine contexts without enforcing a class allowlist (CWE-502, deserialisation of untrusted data), which can lead to remote code execution inside the application JVM.

Affected versions: Spring Statemachine 4.0.0 through 4.0.1 Spring Statemachine 3.2.0 through 3.2.4

Vulnerability in Spring Spring Security. Applications that explicitly configure One-Time Token login with JdbcOneTimeTokenService are vulnerable to a Time-of-check Time-of-use (TOCTOU) race condition. This issue affects Spring Security: from 6.4.0 through 6.4.15, from 6.5.0 through 6.5.9, from 7.0.0 through 7.0.4.

Vulnerability in Spring Spring Security. If an application uses <sec:intercept-url servlet-path="/servlet-path" pattern="/endpoint/"/> to define the servlet path for computing a path matcher, then the servlet path is not included and the related authorization rules are not exercised. This can lead to an authorization bypass.This issue affects Spring Security: from 7.0.0 through 7.0.4.

Vulnerability in Spring Spring Security. If an application is using securityMatchers(String) and a PathPatternRequestMatcher.Builder bean to prepend a servlet path, matching requests to that filter chain may fail and its related security components will not be exercised as intended by the application. This can lead to the authentication, authorization, and other security controls being rendered inactive on intended requests.This issue affects Spring Security: from 7.0.0 through 7.0.4.

Vulnerability in Spring Spring Security. If an application is using the UserDetails#isEnabled, #isAccountNonExpired, or #isAccountNonLocked user attributes, to enable, expire, or lock users, then DaoAuthenticationProvider's timing attack defense can be bypassed for users who are disabled, expired, or locked.This issue affects Spring Security: from 5.7.0 through 5.7.22, from 5.8.0 through 5.8.24, from 6.3.0 through 6.3.15, from 6.5.0 through 6.5.9, from 7.0.0 through 7.0.4.

Spring LDAP's DirContextAuthenticationStrategy implementations do not reject a bind request where a non-empty username is paired with an empty or null password.

Affected versions: Spring LDAP 2.4.0 through 2.4.4; 3.2.0 through 3.2.17; 3.3.0 through 3.3.7; 4.0.0 through 4.0.3.

Spring MVC and WebFlux applications are vulnerable to Denial of Service (DoS) attacks when resolving static resources.

Affected versions: Spring Framework 7.0.0 through 7.0.7; 6.2.0 through 6.2.18; 6.1.0 through 6.1.27; 5.3.0 through 5.3.48.

Due to incorrect host parsing, applications that rely on UriComponentsBuilder to parse and validate an externally provided URL string may be exposed to a server-side request forgery (SSRF) attack.

Affected versions: Spring Framework 7.0.0 through 7.0.7; 6.2.0 through 6.2.18.

Spring MVC and WebFlux applications are vulnerable to Multipart request smuggling attacks.

Affected versions: Spring Framework 7.0.0 through 7.0.7; 6.2.0 through 6.2.18; 6.1.0 through 6.1.27; 5.3.0 through 5.3.48.

Spring Data's internal property-lookup cache accepts and permanently retains attacker-supplied strings as cache keys, allowing heap exhaustion through repeated requests.

Affected versions: Spring Data Commons 2.7.0 through 2.7.19; 3.3.0 through 3.3.16; 3.4.0 through 3.4.14; 3.5.0 through 3.5.11; 4.0.0 through 4.0.5.

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 used without validation as the post-login redirect target.

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; 7.0.0 through 7.0.5.

src/main/java/org/springframework/data/mapping/context/PersistentPropertyPathFactory.java:175 · Unbounded Resource Allocation (Algorithmic DoS)

Impact

When a consuming module routes user-supplied dot-paths (sort parameters, projection paths, PATCH paths) through MappingContext.getPersistentPropertyPath(String, Class), each distinct string — including invalid ones — is cached forever. A remote attacker can send millions of requests with unique ?sort=aaaa<n> values and grow the heap until the service OOMs.

Description

PersistentPropertyPathFactory.propertyPaths (line 53) is a ConcurrentHashMap<TypeAndPath, PathResolution> populated by getPotentiallyCachedPath() (line 174-177) via computeIfAbsent. The key is (TypeInformation, rawPathString). Crucially, unresolvable paths are also cached (as PathResolution.unresolved, line 204) so that the same InvalidPersistentPropertyPath can be re-thrown — meaning every distinct garbage string an attacker sends creates a permanent entry. There is no eviction. This is reachable from AbstractMappingContext.getPersistentPropertyPath(String, Class) (AbstractMappingContext.java:345), which Spring Data REST and several store query mappers call with HTTP-request-derived sort/filter property names.

By contrast, the sibling SimplePropertyPath.cache was already hardened to use ConcurrentReferenceHashMap (soft refs); this cache was not given the same treatment.

Exploit scenario

Against a Spring Data REST endpoint, an attacker scripts GET /things?sort=<random-40-char-string> in a loop. Each request fails fast with InvalidPersistentPropertyPath, but each distinct random string leaves behind a TypeAndPath key, a PathResolution object holding the split segments list, and the source string in the map. After ~10M requests the JVM OOMs.

Preconditions

- A downstream component (Spring Data REST, a store-specific QueryMapper, or application code) passes externally-supplied strings to MappingContext.getPersistentPropertyPath(String, ...) - No upstream rate-limiting or path-string validation

How to fix

A cache whose key can be derived from external input must be bounded. Replace propertyPaths (line 53) with a ConcurrentLruCache<TypeAndPath, PathResolution> of fixed capacity, or ConcurrentReferenceHashMap (matching the sibling SimplePropertyPath.cache). Additionally, do not cache PathResolution.unresolved results at all (line 204 in createPersistentPropertyPath) — re-computing a failed lookup is cheap, and caching negative results for arbitrary attacker strings is what makes this exploitable.

Adversarial verification

Verdict: TRUEPOSITIVE (confidence: 7/10) — unbounded hard-ref ConcurrentHashMap keyed by raw path string, caches unresolved entries (line 204), reachable via public MappingContext.getPersistentPropertyPath(String, ...); sibling PropertyPath cache was already converted to soft-refs but this one was missed. -3 confidence because the HTTP-input wiring lives in downstream modules (Spring Data REST / store mappers), not verifiable in this repo.

Code at the line — CONFIRMED - Line 53: private final Map<TypeAndPath, PathResolution> propertyPaths = new ConcurrentHashMap<>(); — plain CHM, hard refs, no eviction, no size bound. - Line 175: propertyPaths.computeIfAbsent(TypeAndPath.of(type, propertyPath), ...) — every distinct (type, string) pair is inserted. - Line 204: return PathResolution.unresolved(parts, segment, type, currentPath); — returned from inside computeIfAbsent's mapping function, so unresolvable paths are cached. The PathResolution retains the full attacker string (source = StringUtils.collectionToDelimitedString(parts, "."), line 452).

Callers within spring-data-commons - AbstractMappingContext.getPersistentPropertyPath(String, Class<?>) (line 345) and (String, TypeInformation<?>) (line 350) → persistentPropertyPathFactory.from(type, propertyPath) → straight into the unbounded cache. No validation, no PropertyPath.from gate. - This is the public MappingContext interface (MappingContext.java:174,186), documented to throw InvalidPersistentPropertyPath on bad input — i.e., the contract explicitly anticipates being called with possibly-invalid strings. - No in-repo caller routes HTTP input directly into the String overload. The Sort.Order.property → getPersistentPropertyPath(String, ...) bridge lives in store modules (Spring Data MongoDB QueryMapper, Spring Data REST sort translator). That wiring is out-of-repo as the finding states.

Protections — NONE on this cache Contrast: SimplePropertyPath.java:52 (the PropertyPath.from cache) uses ConcurrentReferenceHashMap (soft refs, GC-evictable). Spring already hardened the sibling cache against exactly this pattern. PersistentPropertyPathFactory.propertyPaths was not given the same treatment.

Stress-test Is this exclusion #3 (intended design)? The PathResolution javadoc (line 426-430) says caching unresolved paths is deliberate — to make repeated lookups of the same bad path cheap. But unbounded hard-ref caching of arbitrary attacker-chosen keys is not the intent; the sibling fix proves Spring considers this a bug class.

Applications that configure their broker connection via RabbitConnectionFactoryBean.setUri("amqps://...") without also calling setUseSSL(true) 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; 3.1.0 through 3.1.15; 2.4.0 through 2.4.17.

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 lots of memory.

Affected versions: Spring Data Commons 4.0.0 through 4.0.5; 3.5.0 through 3.5.11; 3.4.0 through 3.4.14; 3.3.0 through 3.3.16; 3.2.0 through 3.2.15; 3.1.0 through 3.1.14; 3.0.0 through 3.0.15; 2.7.0 through 2.7.19.

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.

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 5.7.0 through 5.7.24; 5.8.0 through 5.8.26; 6.3.0 through 6.3.17; 6.4.0 through 6.4.17; 6.5.0 through 6.5.10.

Authentication bypass by primary weakness vulnerability in Spring Security Spring Authorization Server.

This issue affects Spring Authorization Server: from 7.0.0 through 7.0.4, from 1.5.0 through 1.5.6, from 1.4.0 through 1.4.9, from 1.3.0 through 1.3.10.

The MCP Streamable HTTP server transport (WebFlux and WebMvc variants) does not place any limit on the number of sessions it retains, and by default does not require clients to be authenticated. As a result, a remote attacker can cause the server to accumulate an unbounded number of sessions over time, gradually exhausting available memory and ultimately causing a Denial of Service that affects all legitimate clients. Affected versions: Spring AI: 2.0.0

In Spring AI's Semantic Cache support, the context hash used to isolate cached responses between different system prompts could allow cached responses to be shared across unrelated contexts. Affected versions: Spring AI: 2.0.0

DefaultExecutionContextSerializer, used by default in Spring Batch's JDBC job repository, passes Base64-decoded bytes directly to ObjectInputStream.readObject() without an ObjectInputFilter that restricts types to a trusted class allowlist. Spring Batch 6.0.0 - 6.0.4 Spring Batch 5.2.6 and earlier

Spring Cloud Gateway JsonToGrpcGatewayFilterFactory allows arbitrary Spring Resource locations for defining the proto descriptor. Spring Cloud Gateway 5.0.0 - 5.0.2 Spring Cloud Gateway 4.3.0 - 4.3.5 Spring Cloud Gateway 4.0.0 - 4.2.9 Spring Cloud Gateway 3.1.13 and earlier

A producer who can publish to a JMS destination consumed by any Spring Integration JMS inbound component can set String JMS properties named replyChannel, errorChannel, or jsonTypeId which are copied verbatim into the Spring Integration MessageHeaders. Spring Integration 7.1.0 Spring Integration 7.0.0 - 7.0.5 Spring Integration 6.5.0 - 6.5.10 Spring Integration 6.4.0 - 6.4.12 Spring Integration 5.5.21 and earlier

UrlHandlerFilter can be vulnerable to an open redirect when configured with very broadly matching patterns. The issue applies to the filter variants in both Spring MVC and Spring WebFlux. Spring Framework 7.0.0 - 7.0.8 Spring Framework 6.2.0 - 6.2.19

A WebFlux application running on the Jetty 12 Core reactive adapter serializes response cookies without the sameSite attribute. Spring Framework 7.0.0 - 7.0.8 Spring Framework 6.2.0 - 6.2.19

A Spring RSocket application is exposed to a memory leak via a malformed SETUP frame. Spring Framework 7.0.0 - 7.0.8 Spring Framework 6.2.0 - 6.2.19 Spring Framework 6.1.0 - 6.1.28 Spring Framework 6.0.0 - 6.0.30 Spring Framework 5.3.0 - 5.3.49 Spring Framework 5.2.0.RELEASE - 5.2.25.RELEASE

Applications that evaluate user-supplied Spring Expression Language (SpEL) expressions may be vulnerable to a Denial of Service (DoS) attack when the power operator (^) is used with a BigDecimal or BigInteger operand and a large exponent value. Spring Framework 7.0.0 - 7.0.8 Spring Framework 6.2.0 - 6.2.19 Spring Framework 6.1.0 - 6.1.28 Spring Framework 6.0.0 - 6.0.30 Spring Framework 5.3.0 - 5.3.49 Spring Framework 5.2.25.RELEASE and earlier

A Spring MVC application that uses UrlFileNameViewController that is mapped with an end-of-path, and does not have a configured prefix is vulnerable to an open redirect. Spring Framework 7.0.0 - 7.0.8 Spring Framework 6.2.0 - 6.2.19 Spring Framework 6.1.0 - 6.1.28 Spring Framework 6.0.0 - 6.0.30 Spring Framework 5.3.0 - 5.3.49 Spring Framework 5.2.25.RELEASE and earlier

Use of XsltView in a Spring MVC application can result in SSRF and RCE attack if the application has an "/" mapping that results in view rendering, and where the view name is not explicitly specified. Spring Framework 7.0.0 - 7.0.8 Spring Framework 6.2.0 - 6.2.19 Spring Framework 6.1.0 - 6.1.28 Spring Framework 6.0.0 - 6.0.30 Spring Framework 5.3.0 - 5.3.49 Spring Framework 5.2.25.RELEASE and earlier

The PartEventHttpMessageReader in Spring WebFlux does not enforce the maxPartSize limit when maxInMemorySize is set to -1. Spring Framework 7.0.0 - 7.0.8 Spring Framework 6.2.0 - 6.2.19 Spring Framework 6.1.0 - 6.1.28