by Kastro
Paper/Archive/CVE-2026-25101

CVE-2026-25101

Bludit Bludit — Session Fixation in Bludit

EPSS 0.4%CVSS 9.8
critical.is priorityof 100
36
CVSS 9.8 (NVD)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 30.9.309 × 206.2No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

Bludit allows user's session identifier to be set before authentication. The value of this session ID stays the same after authentication. This behavior enables an attacker to fix a session ID for a victim and later hijack the authenticated session. This issue was fixed in version 3.17.2.

Affected

ProductAffectedFixed inSource
Bludit< 3.17.23.17.2CNA

Scores by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CERT-PL (CNA)4.8CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
CISA ADPSSVCExploitation: none · Automatable: no · Technical impact: partial

References

writeupcert.pl/posts/2026/03/CVE-2026-25099refgithub.com/bludit/bludit/releases/tag/3.17.2