CVE-2026-40991 MEDIUM

CVE-2026-40991: XML External Entity (XXE) injection when documenting untrusted XML content

Vendor Spring
Product Spring REST Docs
Weakness CWE-611 · XXE
Published June 9, 2026
Last update June 10, 2026

CVSS base score

5.9/10
Attack vector Network
Attack complexity High
Privileges required None
User interaction Required
Confidentiality High
Integrity None

CVSS vector

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

What the vulnerability does

01Description

When using spring-restdocs-webtestclient or spring-restdocs-restassured to document a remote API accessed over HTTP, an attacker who compromises the API or tricks the user into documenting a malicious API can perform an XXE injection attack when the documentation-generating tests are next executed. Affected versions: Spring REST Docs 4.0.0; 3.0.0 through 3.0.5; 2.0.0.RELEASE through 2.0.8.RELEASE.

Key dates

02Disclosure timeline

June 9, 2026 CVE published
June 10, 2026 Record updated