CVE-2025-53636— Open OnDemand Shell App closed websocket DoS
Quick assessment
Affected
OSC ondemand
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Osc Open OnDemand是美国Osc开源组织的一个应用软件。提供一个用于访问HPC服务。 Osc Open OnDemand 3.1.14之前版本和4.0.6之前版本存在安全漏洞，该漏洞源于日志处理不当，可能导致拒绝服务攻击。
Possible ATT&CK Techniques 1 AI
T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2025-53636
Vulnerability Information
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Vulnerability Title
Open OnDemand Shell App closed websocket DoS
Source: CVE Program / CVE List V5
Vulnerability Description
Open OnDemand is an open-source HPC portal. Users can flood logs by interacting with the shell app and generating many errors. Users who flood logs can create very large log files causing a Denial of Service (DoS) to the ondemand system. This vulnerability is fixed in 3.1.14 and 4.0.6.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
未加控制的资源消耗(资源穷尽)
Source: CVE Program / CVE List V5
Vulnerability Title
Osc Open OnDemand 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Osc Open OnDemand是美国Osc开源组织的一个应用软件。提供一个用于访问HPC服务。 Osc Open OnDemand 3.1.14之前版本和4.0.6之前版本存在安全漏洞，该漏洞源于日志处理不当，可能导致拒绝服务攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2025-53636
| # | POC Description | Source Link | Shenlong Link |
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IV. Related Vulnerabilities
Same product: ondemand
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CVE-2026-44371
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OnDemand susceptible to malicious input when navigating to a -
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Open OnDemand affected by Apache proxy passing sensitive hea -
CVE-2025-64185
Open OnDemand RPM packages create world writable locations -
CVE-2025-62724
Open OnDemand allowlist bypass using symlinks in directory d
Same vendor: OSC
-
CVE-2026-44371
Open OnDemand: Specially crafted filenames can execute javas -
CVE-2026-26002
OnDemand susceptible to malicious input when navigating to a -
CVE-2025-66029
Open OnDemand affected by Apache proxy passing sensitive hea -
CVE-2025-64185
Open OnDemand RPM packages create world writable locations -
CVE-2025-62724
Open OnDemand allowlist bypass using symlinks in directory d
Same weakness: CWE-400
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CVE-2026-104861
probe-image-size: Quadratic-time Denial of Service in the SV -
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Freetype: freetype: denial of service via repeated subroutin -
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Mooncake transfer engine through 0.3.13.post1 Denial of Serv -
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389-ds-base: 389-ds-base: unauthenticated worker-thread-pool
V. Comments for CVE-2025-53636
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