What is CVE-2026-91996?

CVE-2026-91996 is a high-severity vulnerability in Dromara Lamp-Cloud, classified under Missing Authentication for Critical Function. CVSS score: 7.5/10. Published 2026-09-15.

How severe is CVE-2026-91996?

High severity. CVSS v3 base score is 7.5 out of 10.

Auth bypass in Dromara Lamp-Cloud

CVE-2026-91996

lamp-cloud through 5.10.0 whitelists the path pattern /*/anno/** for anonymous access, allowing unauthenticated attackers to read the server's full JVM system property map. Attackers can send POST requests to /defGenProject/anno/getProperties to retrieve sensitive information including JVM classpath, filesystem paths, operating system details, and startup secrets.

Vulnerability class: Broken Authentication

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

Affected products

Dromara Lamp-cloud

Weakness classification (CWE)

CWE-306 — Missing Authentication for Critical Function

References

disclosure@vulncheck.com (exploit, third-party-advisory)
disclosure@vulncheck.com (technical-description)
disclosure@vulncheck.com (technical-description)
disclosure@vulncheck.com (product)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2026-91996?: CVE-2026-91996 is a high-severity vulnerability in Dromara Lamp-Cloud, classified under Missing Authentication for Critical Function. CVSS score: 7.5/10. Published 2026-09-15.
How severe is CVE-2026-91996?: High severity. CVSS v3 base score is 7.5 out of 10.