CVE-2026-25827 Information disclosure in n/a
An admin user can exploit unrestricted path properties to confirm the existence of arbitrary files on the server, leading to information disclosure.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-25827?
CVE-2026-25827 is a low-severity vulnerability in n/a, published on 15 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
An issue was discovered in Keyfactor SignServer before 7.6.0. A number of properties were identified to not have any restrictions to what path they can be set to by an admin user. Setting these properties to specific file paths can reveal information to the client side. Three specific properties were identified: The property ATTRIBUTESFILE in PKCS11CryotoToken can be set to a readable but not an accepted (i.e., recognized with attributes) file. In this case an error is thrown, confirming the existence of the file. The property KEYSTOREPATH in KeyStoreCryptoToken can be set to a non-existing file that will return an error confirming to the client side that the file does not exist. The property TRUSTSTOREPATH in RenewalWorker can be set to any path (without any restrictions) by an admin user. In the case that the provided path points to an existing file, readable by the user running the application server, but is not a recognized PEM format, it returns this as an error to the client side, confirming the existences of the file.
Weakness: CWE-538
Which versions are affected by CVE-2026-25827?
How do I fix CVE-2026-25827?
No fix has been published for CVE-2026-25827 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-25827 being exploited?
There is no known exploitation of CVE-2026-25827 in the wild and no public exploit code.
Sources
Also known as GHSA-3fm2-px7p-2749.