CVE-2026-116333— PostgreSQL parallel B-tree array scan reads beyond array bounds
Quick assessment
Affected
n/a PostgreSQL
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.
PostgreSQL 在并行 B 树扫描中存在缓冲区过度读取漏洞。该漏洞允许对象创建者通过利用被错误标记为 或 的函数，诱导参与工作的并行工作进程构建不同的扫描键数组，从而读取攻击者指定的服务器内存地址。在主要版本 17 和 18 中，PostgreSQL 18.7 之前的次要版本以及 17.12 之前的次要版本均受此影响。PostgreSQL 17 之前的版本不受此漏洞影响。
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I. Basic Information for CVE-2026-116333
Vulnerability Information
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Vulnerability Title
PostgreSQL parallel B-tree array scan reads beyond array bounds
Source: CVE Program / CVE List V5
Vulnerability Description
Buffer over-read in PostgreSQL parallel B-tree scans allows an object creator to read attacker-chosen server-memory addresses, via a function incorrectly marked PARALLEL SAFE or STABLE to make participating workers build different scan-key arrays. Within major versions 17-18, minor versions before PostgreSQL 18.7 and 17.12 are affected. Versions before PostgreSQL 17 are unaffected.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
缓冲区上溢读取
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| - | PostgreSQL | 18 ~ 18.7 | - |
|
II. Public POCs for CVE-2026-116333
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Other References for CVE-2026-116333 (1)
Same Patch Batch · n/a · 2026-11-12 · 56 CVEs total
| CVE-2026-116331 | 8.8 HIGH | PostgreSQL min/max aggregate type confusion executes arbitrary code |
| CVE-2026-116307 | 8.8 HIGH | PostgreSQL plperl prepared-query use-after-free executes arbitrary code |
| CVE-2026-116309 | 8.8 HIGH | PostgreSQL plperl blessed-reference type confusion may execute arbitrary code |
| CVE-2026-120144 | 8.8 HIGH | PostgreSQL type-cache invalidation gap executes arbitrary code |
| CVE-2026-120142 | 8.8 HIGH | PostgreSQL dropped-column type confusion executes arbitrary code |
| CVE-2026-120141 | 8.8 HIGH | PostgreSQL materialized set-returning function type confusion executes arbitrary code |
| CVE-2026-120139 | 8.8 HIGH | PostgreSQL tuple-size integer wraparound executes arbitrary code |
| CVE-2026-116336 | 8.8 HIGH | PostgreSQL REINDEX CONCURRENTLY does not block DROP INDEX during index functions |
| CVE-2026-116335 | 8.8 HIGH | PostgreSQL commutator or negator result-type confusion executes arbitrary code |
| CVE-2026-116332 | 8.8 HIGH | PostgreSQL portal setup use-after-free executes arbitrary code |
| CVE-2026-120143 | 8.8 HIGH | PostgreSQL transition-table cursor use-after-free executes arbitrary code |
| CVE-2026-116329 | 8.8 HIGH | PostgreSQL statistics import type confusion executes arbitrary code |
| CVE-2026-116330 | 8.8 HIGH | PostgreSQL pg_dump tar restore.sql fails to block psql command injection |
| CVE-2026-116328 | 8.8 HIGH | PostgreSQL generation memory context integer wraparound executes arbitrary code |
| CVE-2026-116317 | 8.8 HIGH | PostgreSQL ts_rank_cd() heap buffer overflow may execute arbitrary code |
| CVE-2026-116326 | 8.8 HIGH | PostgreSQL plperl tied-object exceptions follow stale sigjmp_buf |
| CVE-2026-116323 | 8.8 HIGH | PostgreSQL pltcl reentrant result conversion use-after-free executes arbitrary code |
| CVE-2026-116319 | 8.8 HIGH | PostgreSQL plperl reentrant return_next() use-after-free executes arbitrary code |
| CVE-2026-116320 | 8.8 HIGH | PostgreSQL plperl array and hash conversion use-after-free executes arbitrary code |
| CVE-2026-116318 | 8.8 HIGH | PostgreSQL pg_dump not-null constraint name allows SQL injection |
Showing top 20 of 56 CVEs. View all on vendor page → →
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