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Vulnerability record · CVE-2026-0558 · published 29 March 2026

CVE-2026-0558: Lollms improper authentication vulnerability

Lollms · Lollms

A vulnerability in parisneo/lollms, up to and including version 2.2.0, allows unauthenticated users to upload and process files through the `/api/files/extract-text` endpoint. This endpoint does not enforce authentication, unlike other file-related endpoints, and lacks the `Depends(get_current_active_user)` dependency. This issue can lead to denial of service (DoS) through resource exhaustion, information disclosure, and violation of the application's documented security policies.

9.8 CVSS 3.1 Critical EPSS 2.0% · top 19.6% CWE-287 · Improper authentication
9.8CVSS 3.1 base score
2.0%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References, 1 tagged exploit
17 Jun 2026Last modified by NVD

Description

A vulnerability in parisneo/lollms, up to and including version 2.2.0, allows unauthenticated users to upload and process files through the `/api/files/extract-text` endpoint. This endpoint does not enforce authentication, unlike other file-related endpoints, and lacks the `Depends(get_current_active_user)` dependency. This issue can lead to denial of service (DoS) through resource exhaustion, information disclosure, and violation of the application's documented security policies.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/parisneo/lollms/commit/a6625dc83786ff21d109b0d545ca61b770607ef3 Patch
https://huntr.com/bounties/0a722001-89ce-4c91-b6a6-a55ee5ba2113 ExploitIssue TrackingThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2026-1114Lollms improper access control vulnerabilityIn parisneo/lollms version 2.1.0, the application's session management is vulnerable to improper access control due to the use of a weak secret key f…EPSS 0.54%9.8CVE-2024-3429Lollms path traversal vulnerabilityA path traversal vulnerability exists in the parisneo/lollms application, specifically within the `sanitize_path_from_endpoint` and `sanitize_path` f…EPSS 28%9.6CVE-2026-1115Lollms cross-site scripting vulnerabilityA Stored Cross-Site Scripting (XSS) vulnerability was identified in the social feature of parisneo/lollms, affecting the latest version prior to 2.2.…EPSS 1.3%8.3CVE-2026-0562Lollms incorrect authorization vulnerabilityA critical security vulnerability in parisneo/lollms versions up to 2.2.0 allows any authenticated user to accept or reject friend requests belonging…EPSS 0.27%7.5CVE-2026-0560Lollms server-side request forgery (ssrf) vulnerabilityA Server-Side Request Forgery (SSRF) vulnerability exists in parisneo/lollms versions prior to 2.2.0, specifically in the `/api/files/export-content`…EPSS 1.8%7.5CVE-2024-4881Lollms path traversal vulnerabilityA path traversal vulnerability exists in the parisneo/lollms application, affecting version 9.4.0 and potentially earlier versions, but fixed in vers…EPSS 0.89%6.3CVE-2024-4499Lollms cross-site request forgery vulnerabilityA Cross-Site Request Forgery (CSRF) vulnerability exists in the XTTS server of parisneo/lollms version 9.6 due to a lax CORS policy. The vulnerabilit…EPSS 0.18%6.1CVE-2026-1116Lollms cross-site scripting vulnerabilityA Cross-site Scripting (XSS) vulnerability was identified in the `from_dict` method of the `AppLollmsMessage` class in parisneo/lollms prior to versi…EPSS 0.26%

Source: NIST National Vulnerability Database (record CVE-2026-0558), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.