CVE-2026-2003— PostgreSQL oidvector discloses a few bytes of memory
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I. Basic Information for CVE-2026-2003
Vulnerability Information
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Vulnerability Title
PostgreSQL oidvector discloses a few bytes of memory
Source: NVD (National Vulnerability Database)
Vulnerability Description
Improper validation of type "oidvector" in PostgreSQL allows a database user to disclose a few bytes of server memory. We have not ruled out viability of attacks that arrange for presence of confidential information in disclosed bytes, but they seem unlikely. Versions before PostgreSQL 18.2, 17.8, 16.12, 15.16, and 14.21 are affected.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
CWE-1287
Source: NVD (National Vulnerability Database)
Vulnerability Title
PostgreSQL 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
PostgreSQL是PostgreSQL组织的一套自由的对象关系型数据库管理系统。该系统支持大部分SQL标准并且提供了许多其他特性，例如外键、触发器、视图等。 PostgreSQL 18.2之前版本、17.8之前版本、16.12之前版本、15.16之前版本和14.21之前版本存在安全漏洞，该漏洞源于对oidvector类型验证不当，可能导致泄露服务器内存。
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 |
|---|---|---|---|---|
| - | PostgreSQL | 18 ~ 18.2 | - |
II. Public POCs for CVE-2026-2003
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · n/a · 2026-02-12 · 22 CVEs total
| CVE-2026-2006 | 8.8 HIGH | PostgreSQL missing validation of multibyte character length executes arbitrary code |
| CVE-2026-2005 | 8.8 HIGH | PostgreSQL pgcrypto heap buffer overflow executes arbitrary code |
| CVE-2026-2004 | 8.8 HIGH | PostgreSQL intarray missing validation of type of input to selectivity estimator executes |
| CVE-2026-2007 | 8.2 HIGH | PostgreSQL pg_trgm heap buffer overflow writes pattern onto server memory |
| CVE-2025-56647 | 6.5 MEDIUM | farm 安全漏洞 |
| CVE-2026-2327 | 5.3 MEDIUM | Markdown-It 安全漏洞 |
| CVE-2026-25828 | grub-btrfs 安全漏洞 | |
| CVE-2025-67432 | Monkeybread MBS DynaPDF Plugin 安全漏洞 | |
| CVE-2025-67433 | Open TFTP Server MultiThreaded 安全漏洞 | |
| CVE-2025-70092 | opensourcepos 安全漏洞 | |
| CVE-2025-70314 | webfsd 安全漏洞 | |
| CVE-2025-70845 | aidigu 安全漏洞 | |
| CVE-2025-69634 | Dolibarr ERP & CRM 安全漏洞 | |
| CVE-2025-69807 | bareiron 安全漏洞 | |
| CVE-2025-69806 | bareiron 安全漏洞 | |
| CVE-2025-63421 | Filosoft Comerc32 安全漏洞 | |
| CVE-2025-70981 | FIT2CLOUD CordysCRM 安全漏洞 | |
| CVE-2025-61880 | Infoblox NIOS 安全漏洞 | |
| CVE-2025-61879 | Infoblox NIOS 安全漏洞 | |
| CVE-2025-69752 | Ideagen Q-Pulse 安全漏洞 |
Showing top 20 of 22 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
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PostgreSQL pg_trgm heap buffer overflow writes pattern onto - CVE-2026-2006
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PostgreSQL pgcrypto heap buffer overflow executes arbitrary - CVE-2026-2004
PostgreSQL intarray missing validation of type of input to s - CVE-2025-12818
PostgreSQL libpq undersizes allocations, via integer wraparo
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