CVE-2026-119373

EUVD-2026-113784
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
VulnCheckCNA
7.8 HIGH
LOCAL
LOW
NONE
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources (CNA/ADP records, vendor advisories, Enginsight analysis).
VendorProductVersionSource
sqlitesqlite
𝑥
< 3.54.0
CNA
Common Weakness Enumeration
References
https://abraxaslabs.tech/research/sqlite-fts5-rowidmerge
https://github.com/sqlite/sqlite
https://github.com/sqlite/sqlite/blob/version-3.53.4/ext/fts5/fts5_index.c#L6107
https://github.com/sqlite/sqlite/commit/e1c9934f9f11a499029abb020ea715a08970da80
https://sqlite.org/bugs/info/2026-08-04T08:49:27Z
https://sqlite.org/releaselog/3_54_0.html
https://sqlite.org/src/info/a7f8c92f62
https://www.vulncheck.com/advisories/sqlite-before-3.54.0-fts5-heap-buffer-overflow-via-fts5mergerowidlists