File content disclosure via error logging
Published Sep 15, 2026 · Updated Sep 15, 2026
Information disclosure in Keyfactor SignServer before 7.6.0 allows remote authenticated users to expose readable files through logged errors. When ATTRIBUTESFILE names a readable file that is not accepted as an attributes file, PKCS11CryptoToken includes its contents in an error written to the application server log. Exploitation requires SignServer administrative access and access to that log, such as through configured remote syslog shipping, and exposes only files readable by the JBoss account.
Summary
What happened
Information disclosure in Keyfactor SignServer before 7.6.0 allows remote authenticated users to expose readable files through logged errors. When ATTRIBUTESFILE names a readable file that is not accepted as an attributes file, PKCS11CryptoToken includes its contents in an error written to the application server log. Exploitation requires SignServer administrative access and access to that log, such as through configured remote syslog shipping, and exposes only files readable by the JBoss account.
The record
- CVE
- CVE-2026-25826
- Published
- Sep 15, 2026
- Updated
- Sep 15, 2026
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- T1005
- Attack vector
- network
- Privileges
- admin
Timeline
How it unfolded
- Sep 15, 2026CVE publishedPublication date reported by the CVE source.
- Sep 15, 2026Record updatedLatest update available in the CVE record.
Exploitability
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Attacks
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Technologies
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