CVE-2026-41863: Spring Framework Spring AI's Support For Anthropic's Vulnerability

MODERATE
Advisory Identifier: GHSA-cc4m-mp48-x7qg
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CVSS 6.5
CWE-22
Published
Advisory Summary

CVE-2026-41863 is a MODERATE (CVSS 6.5) spring ai's support for anthropic's vulnerability (CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')) affecting Spring Framework libraries in the Maven ecosystem. The issue involves spring ai's support for anthropic's skills api used llm-influenced filenames unsanitized in path.resolve before writing files to disk. Remediation is available by upgrading affected packages to version 1.1.7.

CVE-2026-41863 at a Glance

CVE Identifier CVE-2026-41863
GHSA Identifier GHSA-cc4m-mp48-x7qg
Severity MODERATE
CVSS v3.1 Base Score 6.5
CWE Classification CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Affected Product Spring Framework
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 6.5

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality None (C:N)
Integrity High (I:H)
Availability None (A:N)

How to Fix CVE-2026-41863

To remediate this vulnerability, upgrade all affected Spring Framework dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

org.springframework.ai:spring-ai-anthropic fixed: 1.1.7 
<dependency>
    <groupId>org.springframework.ai</groupId>
    <artifactId>spring-ai-anthropic</artifactId>
    <version>1.1.7</version>
</dependency>
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

mvn dependency:tree -Dincludes=org.springframework.ai

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2026-41863, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree -Dincludes=org.springframework.ai

Analyze the terminal output to locate any version of Spring Framework in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.1.7), your application is affected.

Note: The mvn dependency:tree -Dincludes=org.springframework.ai command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal'), where the product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. In Spring Framework, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

Spring AI's support for Anthropic's Skills API used LLM-influenced filenames unsanitized in Path.resolve before writing files to disk. This could allow a malicious user to write files outside the intended target directory, including restricted directories. Affected versions: Spring AI: 1.1.0 through 1.1.7

CVE-2026-41863 Affected Spring Framework Versions

1 component(s)
Fixed Versions:
1.1.7
Product / Package Ecosystem Affected Versions Fixed Version
org.springframework.ai:spring-ai-anthropic
maven/org.springframework.ai/spring-ai-anthropic
Maven
≥ 1.1.0
< 1.1.7
1.1.7

References

NVD — CVE-2026-41863 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-41863
Spring Framework Source Repository REPOSITORY
https://github.com/spring-projects/spring-ai
Spring Framework Security Information SECURITY
https://spring.io/security/cve-2026-41863

Frequently Asked Questions

What is CVE-2026-41863?
CVE-2026-41863 is a security vulnerability in Spring Framework involving Spring AI's support for Anthropic's Skills API used LLM-influenced filenames unsanitized in Path.resolve before writing files to disk under CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal').
Which Spring Framework versions are affected?
Affected versions include releases prior to 1.1.7 across affected packages: org.springframework.ai:spring-ai-anthropic.
What version fixes CVE-2026-41863?
Upgrading to 1.1.7 (or the latest patched release for your respective branch) resolves the vulnerability.
Is spring-ai-anthropic affected?
Yes, org.springframework.ai:spring-ai-anthropic is affected in releases prior to 1.1.7. Upgrade your dependency to 1.1.7 or later.
What is the CVSS score of CVE-2026-41863?
CVE-2026-41863 has a CVSS v3.1 base score of 6.5 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N.
What CWE is associated with CVE-2026-41863?
CVE-2026-41863 is classified under CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') (The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.).
How can I check Maven dependencies for CVE-2026-41863?
Run the dependency tree command: 'mvn dependency:tree -Dincludes=org.springframework.ai'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-cc4m-mp48-x7qg",
  "modified" : "2026-06-30T16:50:37Z",
  "published" : "2026-05-26T13:30:39Z",
  "aliases" : [ "CVE-2026-41863" ],
  "summary" : "Spring AI's support for Anthropic's Skills API used LLM-influenced filenames unsanitized in Path.resolve before writing files to disk",
  "details" : "Spring AI's support for Anthropic's Skills API used LLM-influenced filenames unsanitized in Path.resolve before writing files to disk. This could allow a malicious user to write files outside the intended target directory, including restricted directories.\n\nAffected versions:\nSpring AI: 1.1.0 through 1.1.7",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.springframework.ai:spring-ai-anthropic"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "1.1.0"
      }, {
        "fixed" : "1.1.7"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-41863"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/spring-projects/spring-ai"
  }, {
    "type" : "WEB",
    "url" : "https://spring.io/security/cve-2026-41863"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-22" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-06-30T16:50:37Z",
    "nvd_published_at" : "2026-05-25T07:16:16Z"
  }
}