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CVE-2026-119373— SQLite before 3.54.0 FTS5 Heap Buffer Overflow via fts5MergeRowidLists()

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.

在使用 FTS5 构建的 SQLite 3.54.0 之前的版本中， 函数存在堆缓冲区溢出漏洞。该漏洞源于在合并 类型的前缀文档列表时，输出缓冲区分配过小。攻击者若能在 类型的 FTS5 表中插入负值行 ID（rowid），并执行前缀 MATCH 查询，即可向已分配内存之外写入数据，导致堆内存损坏并引发进程崩溃。

CVSS 7.8 · High

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-119373

Vulnerability Information
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Vulnerability Title
SQLite before 3.54.0 FTS5 Heap Buffer Overflow via fts5MergeRowidLists()
Source: CVE Program / CVE List V5
Vulnerability Description
SQLite before 3.54.0 built with FTS5 contains a heap buffer overflow in fts5MergeRowidLists() that undersizes the output buffer when merging detail=none prefix doclists. Attackers who can populate a detail=none FTS5 table with negative rowids and run a prefix MATCH query can write past the allocation, corrupting heap memory and crashing the process.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存写
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-2026-119373

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III. Intelligence Information for CVE-2026-119373

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Patches & Fixes for CVE-2026-119373 (2)

Vendor Advisories for CVE-2026-119373 (2)

Security Blog Posts for CVE-2026-119373 (1)

Other References for CVE-2026-119373 (3)

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-2026-119375 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-2026-119371 5.5 MEDIUM SQLite before 3.54.0 Stack Exhaustion via CTE Chain in selectExpander()
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-787