CVE-2026-119373
highSQLite before 3.54.0 built with FTS5 contains a heap buffer overflow in fts5MergeRowidLists() that undersizes the output buffer when merging detail=none prefix…
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
7.8
7.8 (CVSS v3.1)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Severity source: NVD CVSS v3.1 (disclosure@vulncheck.com)
Timeline (UTC)
Published: 2026-10-30 12:16
Modified: 2026-10-30 18:41
NVD status: Awaiting Analysis
Last synced 18 hours ago
Verified against the source API 2026-10-30 18:50 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://abraxaslabs.tech/research/sqlite-fts5-rowidmerge disclosure@vulncheck.com
- https://github.com/sqlite/sqlite disclosure@vulncheck.com
- https://github.com/sqlite/sqlite/blob/version-3.53.4/ext/fts5/fts5_index.c#L6107 disclosure@vulncheck.com
- https://github.com/sqlite/sqlite/commit/e1c9934f9f11a499029abb020ea715a08970da80 disclosure@vulncheck.com
- https://sqlite.org/bugs/info/2026-08-04T08:49:27Z disclosure@vulncheck.com
- https://sqlite.org/releaselog/3_54_0.html disclosure@vulncheck.com
- https://sqlite.org/src/info/a7f8c92f62 disclosure@vulncheck.com
- https://www.vulncheck.com/advisories/sqlite-before-3.54.0-fts5-heap-buffer-overflow-via-ft... disclosure@vulncheck.com
Data sources
NVD CVE API 2.0 — fetched 2026-10-30 18:50 UTC · record ↗