CVE-2026-41863: Spring AI's support for Anthropic's Skills API used LLM-influenced filenames unsanitized in Path.resolve before writing files to disk

May 26, 2026 (updated June 30, 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 1.1.7

References

github.com/advisories/GHSA-cc4m-mp48-x7qg
nvd.nist.gov/vuln/detail/CVE-2026-41863
spring.io/security/cve-2026-41863

Code Behaviors & Features

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