CVE-2026-119373

high

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.

References

https://www.vulncheck.com/advisories/sqlite-before-3.54.0-fts5-heap-buffer-overflow-via-fts5mergerowidlists

https://sqlite.org/src/info/a7f8c92f62

https://sqlite.org/releaselog/3_54_0.html

https://sqlite.org/bugs/info/2026-08-04T08:49:27Z

https://github.com/sqlite/sqlite/commit/e1c9934f9f11a499029abb020ea715a08970da80

https://github.com/sqlite/sqlite/blob/version-3.53.4/ext/fts5/fts5_index.c#L6107

https://github.com/sqlite/sqlite

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-113784

https://abraxaslabs.tech/research/sqlite-fts5-rowidmerge

Details

Source: Mitre, NVD

Published: 2026-10-30

Updated: 2026-10-30

Risk Information

CVSS v2

Base Score: 7.2

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C

Severity: High

CVSS v3

Base Score: 7.8

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

Severity: High

CVSS v4

Base Score: 8.5

Vector: 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

Severity: High

EPSS

EPSS: 0.00144