CVE-2026-64857: CWE-384: Session Fixation in tirrenotechnologies tirreno
tirreno versions prior to 0.10.0 suffer from a session fixation vulnerability where the session ID is not regenerated upon user authentication. This allows an attacker who can fix a session ID in a victim's browser to hijack the authenticated session. The issue is resolved in version 0.10.0 by regenerating the session ID on login and destroying the previous session. No configuration workaround exists.
AI Analysis
Technical Summary
The tirreno security framework has a session fixation vulnerability (CWE-384) in versions before 0.10.0. After successful authentication, tirreno fails to call session_regenerate_id(), leaving the session identifier unchanged. An attacker capable of setting a known session ID in a victim's browser (via man-in-the-middle, cross-site scripting, or cookie injection) could gain unauthorized access to the victim's authenticated session. The vulnerability is fixed in version 0.10.0 by regenerating the session ID on login and destroying the old session.
Potential Impact
An attacker who can fix a session ID in a victim's browser can hijack the victim's authenticated session, potentially gaining unauthorized access to the victim's account or data within the tirreno framework. This could lead to unauthorized actions performed with the victim's privileges.
Mitigation Recommendations
Upgrade to tirreno version 0.10.0 or later, where the session fixation issue is fixed by regenerating the session ID upon successful authentication and destroying the previous session. There is no configuration-level workaround available.
CVE-2026-64857: CWE-384: Session Fixation in tirrenotechnologies tirreno
Description
tirreno versions prior to 0.10.0 suffer from a session fixation vulnerability where the session ID is not regenerated upon user authentication. This allows an attacker who can fix a session ID in a victim's browser to hijack the authenticated session. The issue is resolved in version 0.10.0 by regenerating the session ID on login and destroying the previous session. No configuration workaround exists.
CVSS v4.0
Score 5.3medium
Affected software
pkg:github/tirrenotechnologies/tirrenoRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The tirreno security framework has a session fixation vulnerability (CWE-384) in versions before 0.10.0. After successful authentication, tirreno fails to call session_regenerate_id(), leaving the session identifier unchanged. An attacker capable of setting a known session ID in a victim's browser (via man-in-the-middle, cross-site scripting, or cookie injection) could gain unauthorized access to the victim's authenticated session. The vulnerability is fixed in version 0.10.0 by regenerating the session ID on login and destroying the old session.
Potential Impact
An attacker who can fix a session ID in a victim's browser can hijack the victim's authenticated session, potentially gaining unauthorized access to the victim's account or data within the tirreno framework. This could lead to unauthorized actions performed with the victim's privileges.
Mitigation Recommendations
Upgrade to tirreno version 0.10.0 or later, where the session fixation issue is fixed by regenerating the session ID upon successful authentication and destroying the previous session. There is no configuration-level workaround available.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-07-20T18:31:39.291Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6aa164b2acd9273b496858f6
Added to database: 09/09/2026, 13:52:50 UTC
Last enriched: 09/09/2026, 14:24:14 UTC
Last updated: 09/09/2026, 21:15:01 UTC
Views: 8
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