Auth bypass in Dromara Jpom
CVE-2026-91993
Jpom through 2.11.12 fails to validate workspace ownership when resolving repositoryId on the /build/branch-list endpoint, allowing authenticated users to access repositories from other workspaces. Attackers can submit repository identifiers from different workspaces to enumerate repository existence, determine repository type, and execute git ls-remote commands using other workspaces' stored credentials.
Vulnerability class: IDOR (Insecure Direct Object Reference)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.003 (27.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 28th percentile — 27.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
Weakness classification (CWE)
References
- github.com/dromara/Jpom/issues/115 (issue-tracking, exploit)
- github.com/dromara/Jpom/blob/v2.11.12/modules/server/src/main/java/org/dromara/… (technical-description)
- github.com/dromara/Jpom (product)
- www.vulncheck.com/advisories/jpom-through-2.11.12-workspace-isolation-bypass-vi… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-91993?
- CVE-2026-91993 is a medium-severity vulnerability in Dromara Jpom, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 4.3/10. Published 2026-09-15.
- How severe is CVE-2026-91993?
- Medium severity. CVSS v3 base score is 4.3 out of 10.