RCE in Opencc Jflow
CVE-2026-3813
A vulnerability was identified in opencc JFlow up to 5badc00db382d7cb82dad231e6a866b18e0addfe. Affected by this vulnerability is the function Calculate of the file src/main/java/bp/wf/httphandler/WF_CCForm.java. Such manipulation leads to…
EPSS: 0.001 (16.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.
Affected products
- Opencc Jflow — versions 5badc00db382d7cb82dad231e6a866b18e0addfe
Weakness classification (CWE)
References
- VDB-349779 | opencc JFlow WF_CCForm.java Calculate injection (technical-description, Third Party Advisory, VDB Entry, vdb-entry)
- VDB-349779 | CTI Indicators (IOB, IOC, TTP, IOA) (signature, Permissions Required, permissions-required, VDB Entry)
- Submit #769112 | https://gitee.com/opencc/JFlow JFlow latest version Remote Code Execution (Third Party Advisory, VDB Entry, third-party-advisory)
- cna@vuldb.com (issue-tracking, Exploit, exploit, Issue Tracking, Vendor Advisory)
- cna@vuldb.com (Product, product)
Frequently asked questions
- What is CVE-2026-3813?
- CVE-2026-3813 is a medium-severity vulnerability in Opencc Jflow, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 6.3/10. Published 2026-03-09.
- How severe is CVE-2026-3813?
- Medium severity. CVSS v3 base score is 6.3 out of 10.