CVE-2026-119371— SQLite before 3.54.0 Stack Exhaustion via CTE Chain in selectExpander()

Quick assessment

Affected

SQLite SQLite

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.

在 SQLite 3.54.0 之前的版本中存在一个栈耗尽漏洞。攻击者可以利用该漏洞绕过嵌套深度限制，因为公共表表达式（CTE）未被计入该限制。攻击者可以通过普通 SQL 语句或不信任的数据库文件中的视图，提供包含数万个 CTE 链式调用的子句，从而引发无限制的递归调用，最终导致进程崩溃。

CVSS 5.5 · Medium Updated Oct 31, 2026

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

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Vulnerability Information

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Vulnerability Title

SQLite before 3.54.0 Stack Exhaustion via CTE Chain in selectExpander()

Source: CVE Program / CVE List V5

Vulnerability Description

SQLite before 3.54.0 contains a stack exhaustion vulnerability that allows attackers to bypass the SQLITE_LIMIT_EXPR_DEPTH nesting limit because common table expressions are not counted against it. Attackers can supply a WITH clause chaining tens of thousands of CTEs, via plain SQL or a view in an untrusted database file, causing unbounded selectExpander() recursion that crashes the process.

Source: CVE Program / CVE List V5

CVSS Information

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Source: CVE Program / CVE List V5

Vulnerability Type

未经控制的递归

Source: CVE Program / CVE List V5

Affected Products

Vendor	Product	Affected Versions	CPE	Subscribe
SQLite	SQLite	0 ~ 3.54.0	-

II. Public POCs for CVE-2026-119371

#	POC Description	Source Link	Shenlong Link

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III. Intelligence Information for CVE-2026-119371

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Other References for CVE-2026-119371 (8)

🔗 SQLite Bug Forum: A chain of CTEs escapes the nesting-depth limit and overflows the stack Read full article issue-tracking
https://github.com/sqlite/sqlite/blob/version-3.53.4/src/select.c#L5754 technical-description
🔗 SQLite nested CTEs skip the view-depth cap · Abraxas Labs Read full article third-party-advisory
🔗 SQLite: Check-in [f547308713] patch
🔗 Limit the depth of recursion for CTEs using SQLITE_LIMIT_EXPR_DEPTH. · sqlite/sqlite@e6ff280 · GitHub Read full article patch
SQLite Release 3.54.0 On 2026-10-09 release-notes
GitHub - sqlite/sqlite: Official Git mirror of the SQLite source tree · GitHub product
🔗 SQLite before 3.54.0 Stack Exhaustion via CTE Chain in selectExpander() | Advisories | VulnCheck third-party-advisory

https://www.cve.org/CVERecord?id=CVE-2026-119371

Same Patch Batch · SQLite · 2026-10-30 · 11 CVEs total

CVE-2026-119586	7.8 HIGH	SQLite CLI through 3.54.1 Command Injection via .recover Output
CVE-2026-119379	7.8 HIGH	SQLite before 3.54.0 Heap Buffer Overflow via Session Extension sessionUpdateFind()
CVE-2026-119374	7.8 HIGH	SQLite before 3.54.0 Heap Buffer Overflow via FTS5 fts5DoSecureDelete()
CVE-2026-119373	7.8 HIGH	SQLite before 3.54.0 FTS5 Heap Buffer Overflow via fts5MergeRowidLists()
CVE-2026-119375	5.5 MEDIUM	SQLite before 3.54.0 Information Disclosure via WAL Page Size Mismatch
CVE-2026-119591	5.5 MEDIUM	SQLite before 3.54.0 Stack Exhaustion via countOfViewOptimization() in VALUES Clause
CVE-2026-119372	5.5 MEDIUM	SQLite before 3.54.0 Use-After-Free in FTS3 fts3BestSnippet() via snippet()
CVE-2026-119376	5.5 MEDIUM	SQLite before 3.54.0 Stack Exhaustion via COLLATE Operator Chain
CVE-2026-119378	5.5 MEDIUM	SQLite before 3.54.0 Use-After-Free in R-Tree nodeWrite()
CVE-2026-119377	2.5 LOW	SQLite before 3.54.0 Authorizer Bypass via RIGHT or FULL JOIN USING

IV. Related Vulnerabilities

Same product: SQLite

Same vendor: SQLite

Same weakness: CWE-674