EUVD-2026-78415
GHSA-qp8h-c7qp-m297
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V8 - Authorization Authorization checks on every request
MITRE ATT&CK
1 technique across 1 tactic: Privilege Escalation The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
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Alert meAnalysisAIv1 – Sep 16, 2026
Missing authorization on pgweb's POST /api/connect endpoint through version 0.17.0 lets attackers bypass the connect-backend resource-to-database mapping by submitting a custom session identifier and arbitrary connection URL, granting access to databases and internal services the operator never intended to expose. The flaw is CWE-862 (missing authorization) and carries a CVSS 4.0 base score of 8.4 (AV:N/AC:L/PR:L/UI:N, high confidentiality impact on both the vulnerable system and subsequent systems), reflecting that a successful attacker can read arbitrary backend data while the pgweb host is used as a pivot. No public exploit code has been identified at time of analysis and the CVE is not listed in CISA KEV, so exploitation is currently assessed as opportunistic rather than confirmed active.
Affected VersionsENISA
Affected Packages
Source: OSV (Open Source Vulnerabilities)
Affects your stack
Affects 1 package in euvd
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Severity by source
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
Primary rating from Vendor (VulnCheck) · only source for this CVE.
CVSS VectorVendor: VulnCheck
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.
Threat Intelligence Overview
NVD
CVE.org
EPSS
VulDB
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.
Exploit-DB