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CVE-2026-6474— PostgreSQL timeofday() can disclose portions of server memory

CVSS 4.3 · Medium EPSS 0.03% · P8

Affected Version Matrix 5

VendorProductVersion RangeStatus
n/aPostgreSQL18< 18.4affected
17< 17.10affected
16< 16.14affected
15< 15.18affected
< 14.23affected
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I. Basic Information for CVE-2026-6474

Vulnerability Information
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Vulnerability Title
PostgreSQL timeofday() can disclose portions of server memory
Source: NVD (National Vulnerability Database)
Vulnerability Description
Externally-controlled format string in PostgreSQL timeofday() function allows an attacker to retrieve portions of server memory, via crafted timezone zones. Versions before PostgreSQL 18.4, 17.10, 16.14, 15.18, and 14.23 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
使用外部控制的格式字符串
Source: NVD (National Vulnerability Database)
Vulnerability Title
PostgreSQL 格式化字符串错误漏洞
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 18.4之前版本、17.10之前版本、16.14之前版本、15.18之前版本和14.23之前版本存在格式化字符串错误漏洞，该漏洞源于timeofday函数中外部控制的格式字符串，可能导致攻击者通过特制时区检索服务器内存部分。
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

VendorProductAffected VersionsCPESubscribe
-PostgreSQL 18 ~ 18.4 -

II. Public POCs for CVE-2026-6474

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III. Intelligence Information for CVE-2026-6474

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Same Patch Batch · n/a · 2026-05-14 · 16 CVEs total

CVE-2026-66378.8 HIGHPostgreSQL refint allows stack buffer overflow and SQL injection
CVE-2026-64778.8 HIGHPostgreSQL libpq lo_* functions let server superuser overwrite client stack memory
CVE-2026-64758.8 HIGHPostgreSQL pg_basebackup and pg_rewind can overwrite unrelated files of origin superuser c
CVE-2026-64738.8 HIGHPostgreSQL server undersizes allocations, via integer wraparound
CVE-2026-64797.5 HIGHPostgreSQL SSL/GSS init causes denial of service, via uncontrolled recursion
CVE-2026-64767.2 HIGHPostgreSQL pg_createsubscriber allows SQL injection via subscription name
CVE-2026-64786.5 MEDIUMPostgreSQL discloses MD5-hashed passwords via covert timing channel
CVE-2026-64725.4 MEDIUMPostgreSQL CREATE TYPE does not check multirange schema CREATE privilege
CVE-2026-65754.3 MEDIUMPostgreSQL pg_restore_attribute_stats accepts values that cause query planning to read pas
CVE-2026-66383.7 LOWPostgreSQL REFRESH PUBLICATION allows SQL injection via table name
CVE-2026-24710Northern.tech CFEngine Enterprise 跨站脚本漏洞
CVE-2026-24711Northern.tech CFEngine Enterprise 安全漏洞
CVE-2026-24712Northern.tech CFEngine 安全漏洞
CVE-2026-38740Foscam VD1 Video Doorbell 安全漏洞
CVE-2025-69443Archon 安全漏洞

IV. Related Vulnerabilities

Same product: PostgreSQL
Same vendor: n/a
Same weakness: CWE-134

V. Comments for CVE-2026-6474

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