Auth bypass in Serge-Chat Serge
CVE-2026-6588
A weakness has been identified in serge-chat serge up to 1.4TB. The impacted element is the function download_model/delete_model of the file api/src/serge/routers/model.py of the component Model API Endpoint. Executing a manipulation can lead to missing authentication. The attack can be launched remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L.
EPSS exploit prediction
EPSS: 0.007 (52.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 52nd percentile — 52.4% 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: 0.007 · change: +0.003
Affected products
- Serge-Chat Serge — versions 1.4TB
Weakness classification (CWE)
References
- vuldb.com/vuln/358223 (technical-description, vdb-entry)
- vuldb.com/vuln/358223/cti (signature, permissions-required)
- vuldb.com/submit/791089 (third-party-advisory)
- gist.github.com/YLChen-007/5fbc93a21f9928e91a72ab0d72fb1e88 (exploit)
Frequently asked questions
- What is CVE-2026-6588?
- CVE-2026-6588 is a medium-severity vulnerability in Serge-Chat Serge, classified under Improper Authentication. CVSS score: 6.5/10. Published 2026-04-20.
- How severe is CVE-2026-6588?
- Medium severity. CVSS v3 base score is 6.5 out of 10.