Threat database

Spring Cloud Config allows applications to serve arbitrary text and binary files through the spring-cloud-config-server module. A malicious user, or attacker, can send a request using a specially crafted URL that can lead to a directory traversal attack. Spring Cloud Config 3.1.x: affected from 3.1.0 through 3.1.13 (inclusive); upgrade to 3.1.14 or greater (Enterprise Support Only). Spring Cloud Config 4.1.x: affected from 4.1.0 through 4.1.9 (inclusive); upgrade to 4.1.10 or greater (Enterprise Support Only). Spring Cloud Config 4.2.x: affected from 4.2.0 through 4.2.6 (inclusive); upgrade to 4.2.7 or greater (Enterprise Support Only). Spring Cloud Config 4.3.x: affected from 4.3.0 through 4.3.2 (inclusive); upgrade to 4.3.3 or greater. Spring Cloud Config 5.0.x: affected from 5.0.0 through 5.0.2 (inclusive); upgrade to 5.0.3 or greater.

The raw message of every server-side AuthenticationException is returned to the unauthenticated remote caller in the gRPC status description. This allows an attacker to obtain information about the authentication failure, which may be useful for further attacks. Affected versions: Spring gRPC: 1.0.0 - 1.0.2 (fixed in 1.0.3). Older, unsupported versions are also affected.

When an authenticated user is denied access to a gRPC method, their authenticated identity remains bound to the gRPC worker thread and can be inherited by a subsequent unauthenticated request on the same thread. This may allow the subsequent user to gain escalated permissions. Affected versions: Spring gRPC: 1.0.0 - 1.0.2 (fixed in 1.0.3). Older, unsupported versions are also affected.

In Spring AI, a malicious PDF file can be crafted that triggers the allocation of unreasonable amounts of memory when handled by `ForkPDFLayoutTextStripper`. Affected versions: Spring AI: 1.0.0 - 1.0.5 (fixed in 1.0.6), 1.1.0 - 1.1.4 (fixed in 1.1.5)

In Spring AI, having access to a shared environment can expose the ONNX model used by the application. Affected versions: Spring AI: 1.0.0 - 1.0.5 (fixed in 1.0.6), 1.1.0 - 1.1.4 (fixed in 1.1.5)

CVE-2026-40978 is a high-severity SQL injection vulnerability in the CosmosDBVectorStore component of Spring AI versions 1.0.0 through 1.0.5 and 1.1.0 through 1.1.4. This flaw allows attackers with limited privileges to execute arbitrary SQL commands by leveraging crafted document IDs.

CVE-2026-40967 is a high-severity vulnerability in Spring AI affecting versions 1.0.0 through 1.0.5 and 1.1.0 through 1.1.4. The issue involves improper escaping of keys and values in FilterExpressionConverter implementations, which translate filter expressions into vector store query languages.

CVE-2026-40977 is a medium severity vulnerability in Spring Boot affecting versions 2.7.0 through 4.0.5. It involves improper link resolution before file access in the ApplicationPidFileWriter component. A local attacker with write access to the PID file location can corrupt one file on the host each time the application starts. The vulnerability impacts the integrity of the host system but does not affect confidentiality or availability. Fixed versions include 2.7.

In certain circumstances, Spring Boot's default web security is ineffective allowing unauthorized access to all endpoints. For an application to be vulnerable, it must: be a servlet-based web application; have no Spring Security configuration of its own and rely on the default web security filter chain; depend on spring-boot-actuator-autoconfigure; not depend on spring-boot-health. If any of the above does not apply, the application is not vulnerable. Affected: Spring Boot 4.0.0–4.0.5; upgrade to 4.0.6 or later per vendor advisory.

Values produced by ${random.value} are not suitable for use as secrets. ${random.uuid} is not affected. ${random.int} and ${random.long} should never be used for secrets as they are numeric values with a predictable range. Affected: Spring Boot 4.0.0–4.0.5 (fix 4.0.6), 3.5.0–3.5.13 (fix 3.5.14), 3.4.0–3.4.15 (fix 3.4.16), 3.3.0–3.3.18 (fix 3.3.19), 2.7.0–2.7.32 (fix 2.7.33); random value property source / weak PRNG for secrets. Versions that are no longer supported are also affected per vendor advisory.

CVE-2026-40974 is a medium severity vulnerability in Spring Boot's Cassandra SSL auto-configuration where hostname verification is not performed during SSL connections to Cassandra. This affects multiple Spring Boot versions from 2.7.0 through 4.0.5, with fixes available in later patch versions. The lack of hostname verification can lead to improper certificate validation, potentially allowing man-in-the-middle attacks that compromise confidentiality, integrity, and availability. No known exploits are reported in the wild at this time.

A local attacker on the same host as the application may be able to take control of the directory used by `ApplicationTemp`. When `server.servlet.session.persistent` is set to `true` and the attack persists across application restarts, this may allow the attacker to read session information and hijack authenticated users or deploy a gadget chain and execute code as the application's user. Affected: Spring Boot 4.0.0–4.0.5 (fix 4.0.6), 3.5.0–3.5.13 (fix 3.5.14), 3.4.0–3.4.15 (fix 3.4.16), 3.3.0–3.3.18 (fix 3.3.19), 2.7.0–2.7.32 (fix 2.7.33); predictable temp directory / `ApplicationTemp` ownership verification. Versions that are no longer supported are also affected per vendor advisory.

An attacker on the same network as the remote application may be able to utilize a timing attack to discover information about the remote secret. In extreme circumstances this could result in the attacker determining the secret and uploading changed classes, thereby achieving remote code execution in the remote application. Affected: Spring Boot 4.0.0–4.0.5 (fix 4.0.6), 3.5.0–3.5.13 (fix 3.5.14), 3.4.0–3.4.15 (fix 3.4.16), 3.3.0–3.3.18 (fix 3.3.19), 2.7.0–2.7.32 (fix 2.7.33); DevTools remote secret comparison. Versions that are no longer supported are also affected per vendor advisory.

CVE-2026-40971 is a medium severity vulnerability in Spring Boot versions 3.5.0 through 3.5.13 and 4.0.0 through 4.0.5. When using SSL bundles for RabbitMQ auto-configuration, Spring Boot does not perform hostname verification when connecting to the RabbitMQ broker.

When configured to use an SSL bundle, Spring Boot's Elasticsearch auto-configuration does not perform hostname verification when connecting to the Elasticsearch server. Affected: Spring Boot 4.0.0–4.0.5; upgrade to 4.0.6 or later per vendor advisory.

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.

CVE-2026-22753 is a vulnerability in Spring Security versions 7.0.0 through 7.0.4 where using securityMatchers(String) combined with a PathPatternRequestMatcher. Builder bean to prepend a servlet path can cause requests to bypass the intended security filter chain. This results in authentication, authorization, and other security controls not being applied to those requests as designed, potentially allowing unauthorized actions. The vulnerability has a CVSS score of 7.5, indicating high severity. No official patch or remediation guidance is currently provided by the vendor.

CVE-2026-22748 is a medium severity vulnerability in Spring Security affecting versions 6.3.0 through 6.3.14, 6.4.0 through 6.4.14, 6.5.

Vulnerability in Spring Spring Security. SubjectX500PrincipalExtractor 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. This issue affects Spring Security: from 7.0.0 through 7.0.4.

CVE-2026-22746 is a low severity vulnerability in Spring Security affecting versions from 5.7.0 through 5.7.22, 5.8.0 through 5.8.24, 6.3.