Vulnerability in Parisneo Parisneo/lollms
CVE-2025-6386
The parisneo/lollms repository is affected by a timing attack vulnerability in the `authenticate_user` function within the `lollms_authentication.py` file. This vulnerability allows attackers to enumerate valid usernames and guess passwords incrementally by analyzing response time differences. The affected version is the latest, and the issue is resolved in version 20.1. The vulnerability arises from the use of Python's default string equality operator for password comparison, which compares characters sequentially and exits on the first mismatch, leading to variable response times based on the number of matching initial characters.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.004 (31.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 31st percentile — 31.0% 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
- Parisneo Parisneo/lollms — versions unspecified
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2025-6386?
- CVE-2025-6386 is a high-severity vulnerability in Parisneo Parisneo/lollms, classified under Observable Discrepancy. CVSS score: 7.5/10. Published 2025-07-07.
- How severe is CVE-2025-6386?
- High severity. CVSS v3 base score is 7.5 out of 10.