CVE-2026-119373
SQLite before 3.54.0 FTS5 Heap Buffer Overflow via fts5MergeRowidLists()
CVSS Score
7.8
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-787 |
| Vendor | sqlite |
| Product | sqlite |
| Published | Oct 30, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
SQLite / SQLite
0 < 3.54.0
References
sqlite.org: https://sqlite.org/bugs/info/2026-08-04T08:49:27Z sqlite.org: https://sqlite.org/src/info/a7f8c92f62 github.com: https://github.com/sqlite/sqlite/commit/e1c9934f9f11a499029abb020ea715a08970da80 github.com: https://github.com/sqlite/sqlite/blob/version-3.53.4/ext/fts5/fts5_index.c#L6107 sqlite.org: https://sqlite.org/releaselog/3_54_0.html abraxaslabs.tech: https://abraxaslabs.tech/research/sqlite-fts5-rowidmerge github.com: https://github.com/sqlite/sqlite vulncheck.com: https://www.vulncheck.com/advisories/sqlite-before-3.54.0-fts5-heap-buffer-overflow-via-fts5mergerowidlists
Credits
Michele 🔍 Abraxas Labs Dan Kennedy