Vulnerability in Bludit
CVE-2026-25101
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.004 (26.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 27th percentile — 26.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Bludit — versions 0
Weakness classification (CWE)
References
- cert.pl/posts/2026/03/CVE-2026-25099 (Third Party Advisory, third-party-advisory)
- github.com/bludit/bludit/releases/tag/3.17.2 (release-notes, Release Notes)
Frequently asked questions
- What is CVE-2026-25101?
- CVE-2026-25101 is a critical-severity vulnerability in Bludit, classified under Session Fixation. CVSS score: 9.8/10. Published 2026-03-27.
- How severe is CVE-2026-25101?
- Critical severity. CVSS v3 base score is 9.8 out of 10.