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

What is CVE-2026-119373?

CVE-2026-119373 is a high-severity vulnerability in SQLite, published on 30 Oct 2026.

Official 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.

Weakness: CWE-787

Which versions are affected by CVE-2026-119373?

It affects 1 product.

Products include SQLite.

How do I fix CVE-2026-119373?

Upgrade to a fixed version.

Is CVE-2026-119373 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-119373 exists.

Other vulnerabilities in SQLite

• CVE-2015-5895 Multiple unspecified vulnerabilities in SQLite before 3.8.10.2, as used in Apple iOS before 9, have unknown impact and attack vectors. Critical 10.0
• CVE-2020-35527 In SQLite 3.31.1, there is an out of bounds access problem through ALTER TABLE for views that have a nested FROM clause. Critical 9.8
• CVE-2019-8457 SQLite3 from 3.6.0 to and including 3.27.2 is vulnerable to heap out-of-bound read in the rtreenode() function when handling invalid rtree tables. Critical 9.8
• CVE-2017-10989 The getNodeSize function in ext/rtree/rtree.c in SQLite through 3.19.3, as used in GDAL and other products, mishandles undersized RTree blob Critical 9.8
• CVE-2026-119374 SQLite before 3.54.0 Heap Buffer Overflow via FTS5 fts5DoSecureDelete() High 8.5

All SQLite vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as AZL-111769, DEBIAN-CVE-2026-119373, ECHO-b7ce-4f84-2ed2, GHSA-mw7g-h5m4-mrxh, ROOT-OS-ALPINE-320-CVE-2026-119373, ROOT-OS-ALPINE-321-CVE-2026-119373 and 6 more.