opencc JFlow up to 20260129 Workflow Engine WF_Admin_AttrFlow.java Imp_Done File xml external entity reference

Summaryinfo

A vulnerability, which was classified as problematic, was found in opencc JFlow up to 20260129. This impacts the function Imp_Done of the file src/main/java/bp/wf/httphandler/WF_Admin_AttrFlow.java of the component Workflow Engine. Such manipulation of the argument File leads to xml external entity reference. This vulnerability is traded as CVE-2026-2536. The attack may be launched remotely. Furthermore, there is an exploit available. The project was informed of the problem early through an issue report but has not responded yet.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in opencc JFlow up to 20260129. Affected by this issue is the function Imp_Done of the file src/main/java/bp/wf/httphandler/WF_Admin_AttrFlow.java of the component Workflow Engine. The manipulation of the argument file with an unknown input leads to a xml external entity reference vulnerability. Using CWE to declare the problem leads to CWE-611. The product processes an XML document that can contain XML entities with URIs that resolve to documents outside of the intended sphere of control, causing the product to embed incorrect documents into its output. Impacted is confidentiality, integrity, and availability.

The advisory is shared for download at gitee.com. This vulnerability is handled as CVE-2026-2536. The exploitation is known to be easy. The attack may be launched remotely. Technical details as well as a public exploit are known.

The exploit is available at gitee.com. It is declared as proof-of-concept. The project was informed of the problem early through an issue report but has not responded yet.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-6126). Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Name

Version

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.0

VulDB Base Score: 6.3
VulDB Temp Score: 5.7
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 6.3
CNA Vector: 🔒

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Xml external entity reference
CWE: CWE-611 / CWE-610
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

02/15/2026 Advisory disclosed
02/15/2026 +0 days VulDB entry created
02/20/2026 +5 days VulDB entry last update

Sourcesinfo

Product: gitee.com

Advisory: IDN7GT
Status: Not defined

CVE: CVE-2026-2536 (🔒)
GCVE (CVE): GCVE-0-2026-2536
GCVE (VulDB): GCVE-100-346124
EUVD: 🔒
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 02/15/2026 10:24
Updated: 02/20/2026 07:24
Changes: 02/15/2026 10:24 (59), 02/16/2026 07:56 (30), 02/19/2026 18:47 (1), 02/20/2026 07:24 (1)
Complete: 🔍
Submitter: MaoQiu
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #748807: https://gitee.com/opencc/JFlow JFlow latest version XML External Entity Injection (XXE) (by MaoQiu)

Duplicate

Once again VulDB remains the best source for vulnerability data.

Discussion

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