CVE-2026-119373
SQLite before 3.54.0 FTS5 Heap Buffer Overflow via fts5MergeRowidLists()
- State
- Published
- Severity
- 8.5 High
- Published
- Oct 30, 2026
- Updated
- Oct 30, 2026
- Reserved
- Oct 30, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.5 High | CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 7.8 High | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H | VulnCheck |
Weaknesses
- CWE-787 Out-of-bounds Write
Affected Products
| Product | Versions |
|---|---|
SQLiteSQLite |
|
References
- https://sqlite.org/bugs/info/2026-08-04T08:49:27Zissue-tracking
- https://sqlite.org/src/info/a7f8c92f62patch
- https://github.com/sqlite/sqlite/commit/e1c9934f9f11a499029abb020ea715a08970da80patch
- https://github.com/sqlite/sqlite/blob/version-3.53.4/ext/fts5/fts5_index.c#L6107technical-description
- https://sqlite.org/releaselog/3_54_0.htmlrelease-notes
- https://abraxaslabs.tech/research/sqlite-fts5-rowidmergethird-party-advisory
- https://github.com/sqlite/sqliteproduct
- VulnCheck Advisory: SQLite before 3.54.0 FTS5 Heap Buffer Overflow via fts5MergeRowidLists()third-party-advisory
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