CVE-2026-2536
CVE-2026-2536 is a medium-severity vulnerability with a CVSS 3.x base score of 6.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-610.
Key facts
- Severity: Medium (CVSS 3.x base score 6.3)
- CVSS v2: 6.5
- CVSS v4: 2.1
- EPSS exploit prediction: 0% (21st percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-6126
- Weakness: CWE-610
- Published:
- Last modified:
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.
Frequently asked questions
- What is CVE-2026-2536?
- 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.
- How severe is CVE-2026-2536?
- CVE-2026-2536 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
- Is CVE-2026-2536 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2026-2536?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2026-2536 have an EU (EUVD) identifier?
- Yes. CVE-2026-2536 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-6126.
- When was CVE-2026-2536 published?
- CVE-2026-2536 was published on 2026-02-16 and last updated on 2026-06-17.
References
- https://gitee.com/opencc/JFlow/
- https://gitee.com/opencc/JFlow/issues/IDN7GT
- https://vuldb.com/?ctiid.346124
- https://vuldb.com/?id.346124
- https://vuldb.com/?submit.748807
- https://vuldb.com/?submit.748808
Other CWE-610 vulnerabilities
- CVE-2022-27593 — Critical (CVSS 10.0): An externally controlled reference to a resource vulnerability has been reported to affect QNAP NAS running Photo…
- CVE-2019-7290 — Critical (CVSS 10.0): An access issue was addressed with additional sandbox restrictions. This issue is fixed in Shortcuts 2.1.3 for iOS. A…
- CVE-2017-16088 — Critical (CVSS 10.0): The safe-eval module describes itself as a safer version of eval. By accessing the object constructors, un-sanitized…
- CVE-2022-39206 — Critical (CVSS 9.9): Onedev is an open source, self-hosted Git Server with CI/CD and Kanban. When using Docker-based job executors, the…
- CVE-2026-47643 — Critical (CVSS 9.8): External control of file name or path in Azure Stack Edge allows an unauthorized attacker to execute code over a…
- CVE-2022-20239 — Critical (CVSS 9.8): remap_pfn_range' here may map out of size kernel memory (for example, may map the kernel area), and because the…