CVE-2026-77614 — Opencast is a free, open-source platform to support the management of educational audio…¶
Key facts
CVE-2026-77614 is a High (8.8) vulnerability: Opencast is a free, open-source platform to support the management of educational audio…. This entry ships a detection-only PoC and a Docker test lab.
| CVE | CVE-2026-77614 |
| Severity | High (8.8) |
| Detection / prevention | — |
| PoC | poc.py |
| Source | 2026/CVE-2026-77614/ |
Details¶
English | 한국어
Description¶
Opencast is a free, open-source platform to support the management of educational audio and video content. Prior to versions 19.7 and 20.2, the default security configuration in etc/security/mh_default_org.xml accepts a client-selected JSESSIONID from the ;jsessionid= URL path parameter and does not replace it when the victim logs in. An unauthenticated attacker can send a crafted link to a victim whose browser has no active Opencast session cookie, wait for the victim to authenticate, and then reuse the known identifier as the victim's authenticated session. This can expose the victim's data and actions and can produce full administrative account takeover when the victim is an administrator. This issue is fixed in versions 19.7 and 20.2.
Vulnerability Details¶
| Property | Value |
|---|---|
| CVE ID | CVE-2026-77614 |
| Type | RCE |
| CVSS Score | 8.8 |
Proof of Concept¶
Download¶
# Download PoC script
curl -O https://raw.githubusercontent.com/fankh/vulnerability-poc/main/2026/CVE-2026-77614/poc.py
Usage¶
# Run PoC against target
python3 poc.py --target <TARGET_URL>
# With authentication
python3 poc.py --target <TARGET_URL> --username <USER> --password <PASS>
⚠️ Warning: This PoC is for authorized security testing only. It uses detection-only techniques and does not exploit or damage target systems.
Test Lab¶
This repository includes a Docker-based test environment with both vulnerable and patched applications.
Quick Start¶
# Clone and navigate to CVE directory
cd CVE-2026-77614
# Start both applications
docker-compose up -d
# Run tests
./run-tests.sh # Linux/Mac
./run-tests.ps1 # Windows PowerShell
Application Endpoints¶
| Application | URL | Status |
|---|---|---|
| Vulnerable App | http://localhost:8080 | Shows vulnerability |
| Patched App | http://localhost:8081 | Demonstrates fix |
Directory Structure¶
├── README.md # English documentation
├── README_KO.md # Korean documentation
├── poc.py # PoC detection script
├── docker-compose.yml # Container orchestration
├── run-tests.sh # Linux/Mac test runner
├── run-tests.ps1 # Windows test runner
├── vulnerable-app/ # Vulnerable version
│ ├── app.py
│ ├── Dockerfile
│ └── requirements.txt
└── patched-app/ # Fixed version
├── app.py
├── Dockerfile
└── requirements.txt
References¶
- https://github.com/opencast/opencast/commit/c36652250a026afb7cf78b663950c702669f1d3f
- https://github.com/opencast/opencast/commit/ff84128c9b3bcbd79c28192d25929dab8faf185f
- https://github.com/opencast/opencast/releases/tag/19.7
- https://github.com/opencast/opencast/releases/tag/20.2
- https://github.com/opencast/opencast/security/advisories/GHSA-6f53-jp7x-gg7p
- https://github.com/opencast/opencast/security/advisories/GHSA-6f53-jp7x-gg7p
Generated by PoC Generator on 2026-09-18T03:15:53.454260869
Frequently asked questions¶
What is CVE-2026-77614?¶
CVE-2026-77614 is a High (8.8) vulnerability: Opencast is a free, open-source platform to support the management of educational audio…. This entry ships a detection-only PoC and a Docker test lab.
How do I detect CVE-2026-77614?¶
Run the detection-only PoC included with this entry against your Docker test lab to confirm whether a target is affected; pair it with your own IDS logging.
How do I block or mitigate CVE-2026-77614?¶
Upgrade to a fixed version per the vendor advisory; the NVD record lists the affected versions. Use the included PoC to verify your remediation.
For authorized security testing and research only. See the full source and NVD record.