CVE-2026-35095
4.8
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
Summary
KTM System e-BOK allows the session identifier to be set by the client prior to authentication. If a cookie with a valid name is set, its value remains unchanged after successful login. This behaviour enables an attacker to fix a session ID for a victim and later hijack the authenticated session.
This issue was fixed in the patch published in June 2026.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| KTM System | e-BOK | 0 < 06.2026 | affected |
Weaknesses
- CWE-384: CWE-384: Session Fixation
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
References
- https://cert.pl/posts/2026/06/CVE-2026-35095/
- https://ktmsystem.pl/internetowe-biuro-obslugi-klienta/
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