Auth bypass in Liketrek Trek
CVE-2026-78885
A vulnerability was identified in liketrek TREK up to 3.0.22. The impacted element is the function findOrCreateUser of the file server/src/services/oidcService.ts of the component OIDC Service. Such manipulation leads to improper authentication. It is possible to launch the attack remotely. The attack requires a high level of complexity. The exploitability is regarded as difficult. Upgrading to version 3.1.0 is sufficient to resolve this issue. Upgrading the affected component is advised.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.6 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.006 (46.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 46th percentile — 46.1% 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: 0.006 · change: +0.002
Affected products
- Liketrek Trek — versions 3.0.0, 3.0.1, 3.0.10
Weakness classification (CWE)
References
- vuldb.com/vuln/394941 (technical-description, vdb-entry)
- vuldb.com/vuln/394941/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-78885 (third-party-advisory)
- vuldb.com/submit/886931 (third-party-advisory)
- github.com/mauriceboe/TREK/security/advisories/GHSA-fvgw-r58q-4cw4 (related)
- github.com/liketrek/TREK/releases/tag/v3.1.0 (patch)
Frequently asked questions
- What is CVE-2026-78885?
- CVE-2026-78885 is a medium-severity vulnerability in Liketrek Trek, classified under Improper Authentication. CVSS score: 5.6/10. Published 2026-08-25.
- How severe is CVE-2026-78885?
- Medium severity. CVSS v3 base score is 5.6 out of 10.