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CVE-2026-116308— PostgreSQL dict_int reads beyond zero-length tokens

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 字典类型中存在缓冲区过度读取（buffer over-read）漏洞。攻击者可利用该漏洞，通过传入一个零长度令牌（zero-length token），诱导数据库用户读取并泄露部分服务器内存。受影响的版本包括：PostgreSQL 18.7 之前、17.12 之前、16.16 之前、15.20 之前以及 14.25 之前的所有版本。

CVSS 4.3 · Medium
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I. Basic Information for CVE-2026-116308

Vulnerability Information
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Vulnerability Title
PostgreSQL dict_int reads beyond zero-length tokens
Source: CVE Program / CVE List V5
Vulnerability Description
Buffer over-read in PostgreSQL dict_int allows a database user to disclose portions of server memory, via a zero-length token. 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: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-2026-116308

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III. Intelligence Information for CVE-2026-116308

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Other References for CVE-2026-116308 (1)

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

CVE-2026-116317 8.8 HIGH PostgreSQL ts_rank_cd() heap buffer overflow may execute 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-2026-116331 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-2026-116319 8.8 HIGH PostgreSQL plperl reentrant return_next() use-after-free executes 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-2026-116318 8.8 HIGH PostgreSQL pg_dump not-null constraint name allows SQL injection
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-126