Arbitrary file upload in Jawherkl Node-Api-Postgres
CVE-2026-4191
A flaw has been found in JawherKl node-api-postgres up to 2.5. Affected is the function path.extname of the file index.js of the component Profile Picture Handler. This manipulation causes unrestricted upload. The attack is possible to be carried out remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.005 (38.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 39th percentile — 38.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.005 · change: +0.001
Affected products
- Jawherkl Node-Api-Postgres — versions 2.0, 2.1, 2.2
Weakness classification (CWE)
References
- vuldb.com/ (technical-description, vdb-entry)
- vuldb.com/ (signature, permissions-required)
- vuldb.com/ (third-party-advisory)
- hackmd.io/@YzU_KiOzT86cEbFQdBceVg/Bk56LQQYbe (exploit)
Frequently asked questions
- What is CVE-2026-4191?
- CVE-2026-4191 is a high-severity vulnerability in Jawherkl Node-Api-Postgres, classified under Improper Access Control. CVSS score: 7.3/10. Published 2026-03-16.
- How severe is CVE-2026-4191?
- High severity. CVSS v3 base score is 7.3 out of 10.