What is CVE-2026-40991?

CVE-2026-40991 is a medium-severity vulnerability, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 5.9/10. Published 2026-06-10.

How severe is CVE-2026-40991?

Medium severity. CVSS v3 base score is 5.9 out of 10.

CVE-2026-40991

CVE-2026-40991

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 attac…

Vulnerability class: XXE (XML External Entity)

CVSS v3 metric

CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:L.

Weakness classification (CWE)

CWE-611 — Improper Restriction of XML External Entity Reference (XXE)

References

security@vmware.com

Frequently asked questions

What is CVE-2026-40991?: CVE-2026-40991 is a medium-severity vulnerability, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 5.9/10. Published 2026-06-10.
How severe is CVE-2026-40991?: Medium severity. CVSS v3 base score is 5.9 out of 10.