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CVE-2026-50737

Quick assessment

Affected
EnterpriseDB pglogical
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.

EnterpriseDB pglogical是美国EnterpriseDB公司开源的一款数据库逻辑复制扩展。 EnterpriseDB pglogical 2.4.8之前版本存在权限许可和访问控制问题漏洞，该漏洞源于处理缺失列的行时默认表达式在超级用户权限下执行，导致攻击者可将角色从允许使用pglogical升级为完全超级用户。

CVSS 9.0 · Critical EPSS 0.19% · P9

Affected Version Matrix 1

VendorProduct Version RangeStatus
EnterpriseDB pglogical 2< 2.4.8 affected
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I. Basic Information for CVE-2026-50737

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
When applying replicated changes for a row that is missing one or more columns, pglogical evaluates the affected table's default expressions on the subscriber. Because the apply worker runs at a privilege level equivalent to a PostgreSQL superuser in default installations, any function invoked by such a default expression also runs at that privilege. A party acting as the publisher can use this path to cause functions to be executed on the subscriber as superuser, escalating from a role permitted to use pglogical to full superuser. This is a second, independent path to the same superuser escalation tracked under CVE-2026-50736 (the pglogical queue issue). To exploit the issue an attacker must be able to direct a subscription at an endpoint they control. In default installations this requires privileges normally reserved for a superuser, so the issue is most relevant to managed deployments where the ability to create subscriptions has been delegated to non-superuser roles.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
Source: CVE Program / CVE List V5
Vulnerability Type
带着不必要的权限执行
Source: CVE Program / CVE List V5
Vulnerability Title
EnterpriseDB pglogical 权限许可和访问控制问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
EnterpriseDB pglogical是美国EnterpriseDB公司开源的一款数据库逻辑复制扩展。 EnterpriseDB pglogical 2.4.8之前版本存在权限许可和访问控制问题漏洞，该漏洞源于处理缺失列的行时默认表达式在超级用户权限下执行，导致攻击者可将角色从允许使用pglogical升级为完全超级用户。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
EnterpriseDB pglogical 2 ~ 2.4.8 -

II. Public POCs for CVE-2026-50737

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III. Intelligence Information for CVE-2026-50737

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Vendor Advisories for CVE-2026-50737 (1)

Same Patch Batch · EnterpriseDB · 2026-07-28 · 4 CVEs total

CVE-2026-50736 9.0 CRITICAL EnterpriseDB pglogical SQL注入漏洞
CVE-2026-50738 7.7 HIGH EnterpriseDB pglogical 资源管理错误漏洞
CVE-2026-50735 6.1 MEDIUM EnterpriseDB pglogical 缓冲区错误漏洞

IV. Related Vulnerabilities

Same product: pglogical
Same vendor: EnterpriseDB
Same weakness: CWE-250

V. Comments for CVE-2026-50737

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