CVE-2025-66203: lemon8866 StreamVault · OS Command Injection
Affects lemon8866 StreamVaultSource CVE Database V5
Not known to be exploited · CVSS 10.0 Critical : upgrade to 251126 as a priority.
Data as of 26 Oct 2026, 17:16 UTC
- EPSS
- 0.7% chance of exploitation in 30 days – higher than 55% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 251126
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 26 Dec 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Upgrade lemon8866/StreamVault to 251126.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
GitHublemon8866/StreamVaultpkg:github/lemon8866/StreamVaultOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
- Immediately upgrade StreamVault installations to version 251126 or later, where the vulnerability is patched.
- Restrict access to the /admin/api/saveConfig endpoint strictly to trusted administrators using network segmentation, VPNs, or zero-trust access controls.
- Implement multi-factor authentication (MFA) for all administrative accounts to reduce the risk of credential compromise.
- Monitor logs and network traffic for unusual command execution patterns or unexpected yt-dlp argument configurations.
- Employ application-layer firewalls or runtime application self-protection (RASP) solutions to detect and block command injection attempts.
- Conduct regular security audits and penetration tests focusing on administrative interfaces and command execution paths.
- Educate administrators on secure configuration practices and the risks of injecting unsanitized input into command lines.
- If upgrading immediately is not feasible, consider temporarily disabling the vulnerable configuration endpoint or restricting its usage until patching is possible.
Description
StreamVault is a video download integration solution. Prior to version 251126, a Remote Code Execution (RCE) vulnerability exists in the stream-vault application (SpiritApplication). The application allows administrators to configure yt-dlp arguments via the /admin/api/saveConfig endpoint without sufficient validation. These arguments are stored globally and subsequently used in YtDlpUtil.java when constructing the command line to execute yt-dlp. This issue has been patched in version 251126.