Summary
generated automatically from NVD dataApache Jackrabbit's WebDAV server has a session fixation and session reuse flaw (CWE-384). It attaches a cached authenticated session whenever a Lock-Token, TransactionId, SubscriptionId or If-header token matches, without checking any credentials, so one user's session can be reused by another. It affects versions 2.20.0 through 2.20.17, 2.22.0 through 2.22.4 and 2.23.0 through 2.23.5, and is rated CRITICAL with a CVSS v3.1 score of 9.1. The description recommends upgrading to 2.20.18, 2.22.5 or 2.23.6.
NVD description
: Session Fixation / Session Reuse across Users vulnerability in Apache Jackrabbit. Jackrabbit WebDAV server attaches a cached authenticated session on any Lock-Token/TransactionId/SubscriptionId/If-header field token match with no credential check. This issue affects Apache Jackrabbit: from 2.23.0 through 2.23.5, from 2.22.0 through 2.22.4, from 2.20.0 through 2.20.17. Users are recommended to upgrade to versions 2.23.6, 2.22.5, or 2.20.18 which fix the issue.
EPSS · FIRST.org
0.73%probability of exploitation in the next 30 days
Higher than 53% of scored CVEs
EPSS (Exploit Prediction Scoring System) estimates, from observed exploitation activity, how likely a CVE is to be exploited in the next 30 days. It complements CVSS, which measures severity, not likelihood. Score of 2026-10-16, recomputed daily by FIRST.org.
In-depth analysis on cveo.tech
We've published a detailed analysis of this CVE — exploitation, IOCs and mitigation.
CVSS v3.1 Score
Information
- Published
- 7 oct. 2026
- Updated
- 13 oct. 2026
- Status
- Analyzed
- Source
- security@apache.org
Affected products
Weaknesses (CWE)
References (2)
- https://lists.apache.org/thread.html/gmbsmrs2lycl9nld7rd0h1r1fc4t75qrMailing ListVendor Advisory
- http://www.openwall.com/lists/oss-security/2026/10/07/27Mailing ListThird Party Advisory
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