CVE-2026-119379

Description

SQLite before 3.54.0 built with the session extension contains a heap buffer overflow vulnerability in sqlite3changeset_apply() that allows attackers to corrupt heap memory by supplying crafted changesets. Attackers can repeat a table name in a second changeset block with a larger column count, causing sessionUpdateFind() to memset past the undersized aUpdateMask allocation.

Metrics

CVSS 3.1

7.8 (HIGH) Score source: CNA CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS 4.0

8.5 (HIGH) Score source: CNA 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS — exploit probability

0% (percentile: 8) as of 1 November 2026

CWE

CWE-787

References

• https://abraxaslabs.tech/research/sqlite-session-ncol
• https://github.com/sqlite/sqlite
• https://github.com/sqlite/sqlite/blob/version-3.53.4/ext/session/sqlite3session…
• https://github.com/sqlite/sqlite/commit/64459c87cc702d600704fb77ee40ca1782398a52
• https://sqlite.org/bugs/info/2026-08-16T10:15:25Z
• https://sqlite.org/releaselog/3_54_0.html
• https://sqlite.org/src/info/3f57024aecea0f3b
• https://www.vulncheck.com/advisories/sqlite-before-3.54.0-heap-buffer-overflow-…