CVE-2026-41863 PUBLISHED

LLM-influenced filename used unsanitized in Path.resolve before file write in Spring AI support for Anthropic Skills API

Assigner: vmware
Reserved: 22.04.2026 Published: 25.05.2026 Updated: 25.05.2026

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.x

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
CVSS Score: 6.5

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	None
Privileges Required	Low	Integrity Impact	High
User Interaction	None	Availability Impact	None

CVSS 3.1

Product Status

Vendor	Spring
Product	Spring AI
Versions	Default: unaffected affected from 1.1.0 to 1.1.x (incl.)

References

https://spring.io/security/cve-2026-41863

Problem Types

CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') CWE

Impacts

A malicious user may write files outside the intended target directory, including restricted directories.