CVE-2026-116309— PostgreSQL plperl blessed-reference type confusion may execute arbitrary code
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 的 plperl 模块中存在类型混淆漏洞，可能允许对象创建者通过将一个非哈希引用“祝福”（bless）为 PostgreSQL::InServer::ARRAY 类型来执行任意代码。我们尚未确认或排除是否存在足以造成安全影响的方法来控制该指针，但出于谨慎考虑，我们假设该风险是可行的。受影响的版本包括 PostgreSQL 18.7 之前的版本、17.12 之前的版本、16.16 之前的版本、15.20 之前的版本以及 14.25 之前的版本。
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I. Basic Information for CVE-2026-116309
Vulnerability Information
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Vulnerability Title
PostgreSQL plperl blessed-reference type confusion may execute arbitrary code
Source: CVE Program / CVE List V5
Vulnerability Description
Type confusion in PostgreSQL plperl may allow an object creator to execute arbitrary code, via blessing a non-hash reference into PostgreSQL::InServer::ARRAY. We have not confirmed or ruled out a way to control the pointer sufficiently to achieve security impact, but we are proceeding as though that is possible. 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
使用不兼容类型访问资源(类型混淆)
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| - | PostgreSQL | 18 ~ 18.7 | - |
|
II. Public POCs for CVE-2026-116309
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2026-116309 (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-2026-116314 | 8.8 HIGH | PostgreSQL pg_restore executes arbitrary code due to missing non-plain archive validation |
| 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 → →
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