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CVE-2026-91924— pgweb through 0.17.0 Missing Authorization on Direct Connect Endpoint

Quick assessment

Affected
sosedoff pgweb
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

pgweb 版本至 0.17.0，在配置了 connect-backend 授权的情况下，其 POST /api/connect 端点未受保护，允许攻击者提供任意的数据库连接字符串。攻击者可以通过提供自定义的会话标识符和连接 URL，绕过资源到数据库的映射，从而访问未授权的数据库和内部服务。

CVSS 8.5 · High
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I. Basic Information for CVE-2026-91924

Vulnerability Information
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Vulnerability Title
pgweb through 0.17.0 Missing Authorization on Direct Connect Endpoint
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
sosedoff pgweb 0 ~ 0.17.0 -

II. Public POCs for CVE-2026-91924

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-91924

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Vendor Advisories for CVE-2026-91924 (1)

Proof of Concept for CVE-2026-91924 (2)

Other References for CVE-2026-91924 (2)

IV. Related Vulnerabilities

Same weakness: CWE-862

V. Comments for CVE-2026-91924

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