CVE-2026-0558 json
Unauthenticated File Upload in parisneo/lollms
published 2026-03-29 7 mo ago modified 2026-07-13 3 mo ago also PYSEC-2026-2198 , EUVD-2026-17035
- cvss
- 7.5
- version 3.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 2.0%
- EPSS 2.0% chance of exploitation in 30 days, percentile 81%
- public exploits
- 0
- none known, plus a Nuclei check
Summary
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.
Patch / fix
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 7 mo ago
Exploit prediction
2.05% chance of exploitation in the next 30 days, higher than 81% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- Nuclei template LolLMS <= 2.2.0 - Unauthenticated File Upload nuclei detection template
- huntr.com https://huntr.com/bounties/0a722001-89ce-4c91-b6a6-a55ee5ba2113 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.0 | 7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| OSV | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| pypi | lollms | <2.1.1 |
2.1.1 |
Affected products
- parisneo parisneo/lollms
Classification
- Weakness
-
- CWE-287 Improper Authentication
References
-
github.com
/parisneo/lollms/commit/a6625dc83786ff21d109b0d545ca61b770607ef3
patch
-
huntr.com
/bounties/0a722001-89ce-4c91-b6a6-a55ee5ba2113
exploit, issue-tracking, third-party-advisory, report
Sources
- CVE List CVE-2026-0558
- NVD CVE-2026-0558
- OSV PYSEC-2026-2198
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