CVE-2026-119373

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.

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
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

Configurations

No configuration.

History

30 Oct 2026, 12:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-30 12:16

Updated : 2026-10-30 18:41

NVD link : CVE-2026-119373

Mitre link : CVE-2026-119373

CVE.ORG link : CVE-2026-119373

JSON object : View

Products Affected

No product.

CWE

CWE-787

Out-of-bounds Write

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