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CVE-2026-116316— PostgreSQL security-restricted operations can create types in pg_temp, which later queries of the session find

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 在安全受限操作中未能妥善保护替代路径，使得对象创建者能够通过在 中创建域（domain）、枚举（enum）或范围（range）类型，以操作调用者的身份执行任意 SQL。受害者会话随后必须执行一条包含未限定类型名的查询（例如： ）；而自动真空（autovacuum）及其他常见的安全受限操作使用者不会执行此类查询，因此不受影响。受影响的版本包括 PostgreSQL 18.7、17.12、16.16、15.20 和 14.25 之前的所有版本。

CVSS 8.8 · High
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I. Basic Information for CVE-2026-116316

Vulnerability Information
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Vulnerability Title
PostgreSQL security-restricted operations can create types in pg_temp, which later queries of the session find
Source: CVE Program / CVE List V5
Vulnerability Description
Improper protection of alternate path in PostgreSQL security-restricted operations allows an object creator to execute arbitrary SQL as the operation's caller, via a domain, enum, or range type created in pg_temp. The victim session must later run a query containing an unqualified type name, e.g. "SELECT '1'::bigint"; autovacuum and other common security-restricted operation users do not do so, so they are unaffected. 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:H/I:H/A:H
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-2026-116316

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III. Intelligence Information for CVE-2026-116316

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Other References for CVE-2026-116316 (1)

Same Patch Batch · n/a · 2026-11-12 · 56 CVEs total

CVE-2026-116332 8.8 HIGH PostgreSQL portal setup use-after-free executes arbitrary code
CVE-2026-116304 8.8 HIGH PostgreSQL parallel RECORD typmod use-after-free 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-2026-120143 8.8 HIGH PostgreSQL transition-table cursor use-after-free executes arbitrary code
CVE-2026-116319 8.8 HIGH PostgreSQL plperl reentrant return_next() use-after-free executes arbitrary code
CVE-2026-116331 8.8 HIGH PostgreSQL min/max aggregate type confusion 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-2026-116318 8.8 HIGH PostgreSQL pg_dump not-null constraint name allows SQL injection
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-2026-116320 8.8 HIGH PostgreSQL plperl array and hash conversion use-after-free executes arbitrary code

Showing top 20 of 56 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: PostgreSQL
Same vendor: n/a
Same weakness: CWE-424