CVE-2026-16237— PostgreSQL INSERT ... ON CONFLICT can read or modify rows despite auto-updatable view WHERE condition
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 中 在自动可更新视图上的保护机制存在缺陷。若攻击者拥有视图的 和 权限，则可通过反复执行 操作，读取并修改视图所基于的基础表中的每一行数据。该漏洞可绕过视图的 条件限制，无论该视图是否启用了 属性。受影响的版本包括：PostgreSQL 18.7 之前版本、17.12 之前版本、16.16 之前版本、15.20 之前版本，以及 14.25 之前版本。
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I. Basic Information for CVE-2026-16237
Vulnerability Information
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Vulnerability Title
PostgreSQL INSERT ... ON CONFLICT can read or modify rows despite auto-updatable view WHERE condition
Source: CVE Program / CVE List V5
Vulnerability Description
Improper protection in PostgreSQL INSERT ... ON CONFLICT on auto-updatable views allows an attacker having INSERT and UPDATE privileges on the view to read and modify every row in the view's base table, via iterated INSERT ... ON CONFLICT DO UPDATE. This bypasses the view's WHERE condition, whether or not the view is a security_barrier view. Versions before PostgreSQL 18.7, 17.12, 16.16, 15.20, and 14.25 are affected.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
对候选路径的不恰当保护
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| - | PostgreSQL | 18 ~ 18.7 | - |
|
II. Public POCs for CVE-2026-16237
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Other References for CVE-2026-16237 (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-2026-120142 | 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-2026-116315 | 8.8 HIGH | PostgreSQL tsvector_delete() heap buffer overflow executes arbitrary code |
| CVE-2026-120144 | 8.8 HIGH | PostgreSQL type-cache invalidation gap 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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