CVE-2026-15638criticalCWE-327

CVE-2026-15638: critical vulnerability in Delinea Secret Server (On-Prem)

Cryptographic Padding Oracle

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28Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 9.1epss 0.2%
An unauthenticated user with access to Secret Server could leverage a padding oracle to decrypt or encrypt data using one of the server's cryptographic keys. The key itself is not exposed.
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:L/VA:N/SC:H/SI:H/SA:H
Affected products
Delinea · Secret Server (On-Prem)
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