CVE-2026-6474— PostgreSQL timeofday() can disclose portions of server memory
Possible ATT&CK Techniques 3AI
T1005 · Data from Local System T1056 · Input Capture T1059 · Command and Scripting InterpreterAffected Version Matrix 5
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| n/a | PostgreSQL | 18< 18.4 | affected |
17< 17.10 | affected | ||
16< 16.14 | affected | ||
15< 15.18 | affected | ||
< 14.23 | affected |
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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)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| - | PostgreSQL | 18 ~ 18.4 | - |
II. Public POCs for CVE-2026-6474
| # | POC Description | Source Link | Shenlong Link |
|---|
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No public POC found.
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Same Patch Batch · n/a · 2026-05-14 · 16 CVEs total
| CVE-2026-6637 | 8.8 HIGH | PostgreSQL refint allows stack buffer overflow and SQL injection |
| CVE-2026-6477 | 8.8 HIGH | PostgreSQL libpq lo_* functions let server superuser overwrite client stack memory |
| CVE-2026-6475 | 8.8 HIGH | PostgreSQL pg_basebackup and pg_rewind can overwrite unrelated files of origin superuser c |
| CVE-2026-6473 | 8.8 HIGH | PostgreSQL server undersizes allocations, via integer wraparound |
| CVE-2026-6479 | 7.5 HIGH | PostgreSQL SSL/GSS init causes denial of service, via uncontrolled recursion |
| CVE-2026-6476 | 7.2 HIGH | PostgreSQL pg_createsubscriber allows SQL injection via subscription name |
| CVE-2026-6478 | 6.5 MEDIUM | PostgreSQL discloses MD5-hashed passwords via covert timing channel |
| CVE-2026-6472 | 5.4 MEDIUM | PostgreSQL CREATE TYPE does not check multirange schema CREATE privilege |
| CVE-2026-6575 | 4.3 MEDIUM | PostgreSQL pg_restore_attribute_stats accepts values that cause query planning to read pas |
| CVE-2026-6638 | 3.7 LOW | PostgreSQL REFRESH PUBLICATION allows SQL injection via table name |
| CVE-2026-24710 | CFEngine Enterprise 3.21.8前等多个版本XSS漏洞 | |
| CVE-2026-24711 | CFEngine 权限控制缺陷 | |
| CVE-2026-24712 | CFEngine Enterprise 命令注入漏洞 | |
| CVE-2026-38740 | Foscam VD1<5.3敏感信息明文传输 | |
| CVE-2025-69443 | coleam00 Archon 0.1.0远程代码执行漏洞 |
IV. Related Vulnerabilities
Same product: PostgreSQL
- CVE-2026-6638
PostgreSQL REFRESH PUBLICATION allows SQL injection via tabl - CVE-2026-6637
PostgreSQL refint allows stack buffer overflow and SQL injec - CVE-2026-6575
PostgreSQL pg_restore_attribute_stats accepts values that ca - CVE-2026-6479
PostgreSQL SSL/GSS init causes denial of service, via uncont - CVE-2026-6478
PostgreSQL discloses MD5-hashed passwords via covert timing
Same weakness: CWE-134
- CVE-2026-44407
Remote Denial of Service Vulnerability Exists in ZTE Cloud P - CVE-2026-6539
Notepad++ 8.9.3 Format String Injection via nativeLang.xml - CVE-2026-6843
Nano: nano: format string vulnerability leads to denial of s - CVE-2026-3509
CODESYS Control Audit Log Format String DoS - CVE-2026-33210
Ruby JSON has a format string injection vulnerability
V. Comments for CVE-2026-6474
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