CVE-2026-50735
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之前版本存在缓冲区错误漏洞，该漏洞源于未充分验证传入复制协议消息中某些字段的长度，导致越界读取，可能披露相邻进程内存或导致工作进程崩溃。
Possible ATT&CK Techniques 2 AI
T1005 · Data from Local System T1210 · Exploitation of Remote ServicesAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| EnterpriseDB | pglogical | 2< 2.4.8 |
affected |
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I. Basic Information for CVE-2026-50735
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
pglogical's apply worker does not sufficiently validate the length of certain fields in incoming replication protocol messages before copying them, resulting in an out-of-bounds read. A party acting as the publisher for a subscription, for example a non-PostgreSQL endpoint that speaks the pglogical replication protocol, can return crafted messages that cause the subscriber's apply worker to read beyond the bounds of an allocated buffer, disclosing adjacent process memory or crashing the worker. 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:N/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存读
Source: CVE Program / CVE List V5
Vulnerability Title
EnterpriseDB pglogical 缓冲区错误漏洞
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之前版本存在缓冲区错误漏洞，该漏洞源于未充分验证传入复制协议消息中某些字段的长度，导致越界读取，可能披露相邻进程内存或导致工作进程崩溃。
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-2026-50735
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Vendor Advisories for CVE-2026-50735 (1)
Same Patch Batch · EnterpriseDB · 2026-07-28 · 4 CVEs total
| CVE-2026-50737 | 9.0 CRITICAL | EnterpriseDB pglogical 权限许可和访问控制问题漏洞 |
| 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 |
IV. Related Vulnerabilities
Same vendor: EnterpriseDB
V. Comments for CVE-2026-50735
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