High severity · published Oct 20, 2025
CVE-2025-56219
Incorrect access control in SigningHub v8.6.8 allows attackers to arbitrarily add user accounts without any rate limiting
7.1
CVSS
0.3%
EPSS
No
On KEV
Description
Incorrect access control in SigningHub v8.6.8 allows attackers to arbitrarily add user accounts without any rate limiting. This can lead to a resource exhaustion and a Denial of Service (DoS) when an excessively large number of user accounts are created.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
Low
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 25% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SI
Signinghub · Ascertia
through 8.6.8 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-56219
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-56219
Third Party Advisory
https://github.com/saykino/CVE-2025-56219
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