CVE-2026-41863
LLM-influenced filename used unsanitized in Path.resolve before file write in Spring AI support for Anthropic Skills API
Description
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
INFO
Published Date :
May 25, 2026, 7:16 a.m.
Last Modified :
June 1, 2026, 2:22 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | dcf2e128-44bd-42ed-91e8-88f912c1401d | ||||
| CVSS 3.1 | MEDIUM | MITRE-CVE | ||||
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Update Spring AI to a version that addresses this vulnerability.
- Sanitize user-supplied filenames before resolving paths.
- Ensure files are written only to intended directories.
Public PoC/Exploit Available at Github
CVE-2026-41863 has a 1 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-41863.
| URL | Resource |
|---|---|
| https://spring.io/security/cve-2026-41863 | Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-41863 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-41863
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Cathedral-Grade Security for AI Agents. Attack vectors updated daily. Local-first, zero API cost. MIT licensed.
Python
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-41863 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-41863 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Jun. 01, 2026
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:vmware:spring_ai:*:*:*:*:*:*:*:* versions from (including) 1.1.0 up to (excluding) 1.1.7 Added Reference Type VMware: https://spring.io/security/cve-2026-41863 Types: Vendor Advisory -
New CVE Received by [email protected]
May. 25, 2026
Action Type Old Value New Value Added Description 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 Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N Added CWE CWE-22 Added Reference https://spring.io/security/cve-2026-41863