Auth bypass in Sosedoff Pgweb
CVE-2026-91924
pgweb through 0.17.0 leaves the POST /api/connect endpoint unguarded when connect-backend authorization is configured, allowing attackers to supply arbitrary database connection strings. Attackers can bypass the resource-to-database mapping by providing a custom session identifier and connection URL to access unauthorized databases and internal services.
Vulnerability class: Broken Access Control
CVSS v3 metric
CVSS v3 base score 8.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N.
Affected products
Weakness classification (CWE)
References
- disclosure@vulncheck.com (product)
- disclosure@vulncheck.com (technical-description)
- disclosure@vulncheck.com (technical-description)
- disclosure@vulncheck.com (issue-tracking)
- disclosure@vulncheck.com (third-party-advisory)
Frequently asked questions
- What is CVE-2026-91924?
- CVE-2026-91924 is a high-severity vulnerability in Sosedoff Pgweb, classified under Missing Authorization. CVSS score: 8.5/10. Published 2026-09-15.
- How severe is CVE-2026-91924?
- High severity. CVSS v3 base score is 8.5 out of 10.