CVE-2025-56223: n/a
A lack of rate limiting in the component /Home/UploadStreamDocument of SigningHub v8.6.8 allows attackers to cause a Denial of Service (DoS) via uploading an excessive number of files.
AI Analysis
Technical Summary
CVE-2025-56223 describes a denial of service vulnerability in SigningHub v8.6.8 caused by the absence of rate limiting on the /Home/UploadStreamDocument endpoint. Attackers can exploit this by uploading a large volume of files, overwhelming the system and causing service disruption. The vulnerability is classified under CWE-770 (Allocation of Resources Without Limits or Throttling). There is no indication of known exploits in the wild or available patches at this time.
Potential Impact
Successful exploitation results in denial of service by exhausting system resources through excessive file uploads. This disrupts normal service availability but does not impact confidentiality or integrity according to the CVSS vector.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, consider implementing external rate limiting or upload restrictions at network or application firewall layers to mitigate excessive upload attempts.
CVE-2025-56223: n/a
Description
A lack of rate limiting in the component /Home/UploadStreamDocument of SigningHub v8.6.8 allows attackers to cause a Denial of Service (DoS) via uploading an excessive number of files.
CVSS v3.1
Score 7.5high
Affected software
pkg:github/saykino/SigningHubRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2025-56223 describes a denial of service vulnerability in SigningHub v8.6.8 caused by the absence of rate limiting on the /Home/UploadStreamDocument endpoint. Attackers can exploit this by uploading a large volume of files, overwhelming the system and causing service disruption. The vulnerability is classified under CWE-770 (Allocation of Resources Without Limits or Throttling). There is no indication of known exploits in the wild or available patches at this time.
Potential Impact
Successful exploitation results in denial of service by exhausting system resources through excessive file uploads. This disrupts normal service availability but does not impact confidentiality or integrity according to the CVSS vector.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, consider implementing external rate limiting or upload restrictions at network or application firewall layers to mitigate excessive upload attempts.
Technical Details
- Data Version
- 5.1
- Assigner Short Name
- mitre
- Date Reserved
- 2025-08-16T00:00:00.000Z
- State
- PUBLISHED
Threat ID: 68f634eb0ac38c6dbff2af8e
Added to database: 10/20/2025, 13:11:07 UTC
Last enriched: 07/05/2026, 21:02:20 UTC
Last updated: 09/10/2026, 19:36:51 UTC
Views: 221
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