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P4
CVE-2026-59099: cas 7.3.0 to before 8.0.0-RC6
CVE-2026-59099. CVSS 3.1 base score 9.1 (CRITICAL, Vendor/CNA). EPSS 0.00548 (percentile 0.45641), scored 25-Oct-2026.
Affected technology
cas · 7.3.0 to before 8.0.0-RC6
apereo
Description’s affected range: before 8.0.0-RC6
Component: Not specified by the source
Attack conditions (Vendor/CNA, CVSS 4.0): Network (remote) · No privileges required · No user interaction required
What an attacker can do
Remote unauthenticated attackers can recover plaintext conversation state by exploiting AES-GCM initialization vector reuse across the server lifetime. Vendor/CNA’s CVSS 4.0 assessment (base score 9.3/10) rates confidentiality and integrity impact as high; availability impact as none.
- CWE
- CWE-323
- CCR priority
- 36.5 /100 (P4)
- CVSS 3.1
- 9.1 /10 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N · Vendor/CNA
- EPSS
- 0.00548 · percentile 0.45641 · 2026-10-25
- KEV
- no
Provenance
- NVD CVE API 2.0 · Source record · observed 2026-10-25 21:44:36.062275+00:00 UTC
Stable permalink: https://cybercodered.org/item/cve-cve-2026-59099.html