Vulnerability Description
An error in the SignServer container startup logic was found in Keyfactor SignServer versions prior to 7.2. The Admin CLI command used to configure Certificate access to the initial startup of the container sets a property of "allowany" to allow any user with a valid and trusted client auth certificate to connect. Admins can then set more restricted access to specific certificates. A logic error caused this admin CLI command to be run on each restart of the container instead of only the first startup as intended resetting the configuration to "allowany".
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Keyfactor | Signserver | < 7.2 |
Related Weaknesses (CWE)
References
- https://docs.keyfactor.com/signserver/latest/signserver-7-2-release-notesRelease Notes
- https://support.keyfactor.com/hc/en-us/articles/33997706776987-SignServer-securiVendor Advisory
FAQ
What is CVE-2025-26787?
CVE-2025-26787 is a vulnerability with a CVSS score of 4.7 (MEDIUM). An error in the SignServer container startup logic was found in Keyfactor SignServer versions prior to 7.2. The Admin CLI command used to configure Certificate access to the initial startup of the con...
How severe is CVE-2025-26787?
CVE-2025-26787 has been rated MEDIUM with a CVSS base score of 4.7/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-26787?
Check the references section above for vendor advisories and patch information. Affected products include: Keyfactor Signserver.