CVE-2026-3813: opencc JFlow

opencc JFlow WF_CCForm.java Calculate injection

CVSS 5.3 MediumEPSS 0.0041 · 35th percentile

Published by the CVE Program (CNA: VulDB) at 9 Mar 2026, 09:32 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
Vendor	Product	Versions
opencc	JFlow	affected 5badc00db382d7cb82dad231e6a866b18e0addfe

Identifiers

CVE-2026-3813

CNA

VulDB

Weakness (CWE)

CWE-74 · CWE-707

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
5.3	Medium	4.0	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	CNA (VulDB)Used for this record
6.3	Medium	3.1	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R	CNA (VulDB)
6.3	Medium	3.0	CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R	CNA (VulDB)
6.5	Medium	2.0	AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR	CNA (VulDB)

CISA KEV Not listed.
EPSS 0.0041, the 35th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 9 Mar 2026. New records show when each source confirmed them.

Sources

References from the CNA

vuldb.com/?id.349779 vdb-entrytechnical-description
vuldb.com/?ctiid.349779 signaturepermissions-required
vuldb.com/?submit.769112 third-party-advisory
gitee.com/opencc/JFlow/ product
gitee.com/opencc/JFlow/issues/IE8R2F exploitissue-tracking

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.