Which versions of Pgweb are affected by CVE-2026-91924?

We need to produce JSON. Let me analyze. CVE-2026-91924: pgweb through 0.17.0, missing authorization on POST /api/connect. CWE-862 (Missing Authorization).

Pgweb CVE-2026-91924

Q: What is the CVSS score of CVE-2026-91924?

CVE-2026-91924 has a CVSS 4.0 base score of 8.4 (High). CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:H/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X.

EUVD-2026-78415 HIGH

Missing Authorization (CWE-862)

2026-09-15 VulnCheck

GHSA-qp8h-c7qp-m297

Authentication Bypass Pgweb

8.4

CVSS 4.0 · Vendor: VulnCheck

Severity by source

Vendor (VulnCheck) PRIMARY

8.4 HIGH

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:H/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Primary rating from Vendor (VulnCheck) · only source for this CVE.

CVSS VectorVendor: VulnCheck

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Lifecycle Timeline

Analysis Generated

Sep 15, 2026 - 11:33 vuln.today

CVE Published

Sep 15, 2026 - 11:00 cve.org

HIGH 8.4

DescriptionCVE.org

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.