{"id":"BIT-sqlite-2026-11824","summary":"SQLite before 3.53.2 Heap Buffer Overflow via FTS5 fts5ChunkIterate","details":"SQLite before 3.53.2 contains a heap-based buffer overflow vulnerability in the FTS5 full-text search extension that allows attackers to cause a crash or execute arbitrary code by supplying a crafted database with malicious continuation page metadata specifying a szLeaf value smaller than 4. Attackers can trigger an integer underflow in fts5ChunkIterate() causing an inflated remaining byte count during FTS5 MATCH query processing, leading to a heap buffer overflow of attacker-controlled data in applications compiled with SQLITE_ENABLE_FTS5.","aliases":["CVE-2026-11824"],"modified":"2026-06-12T09:15:04.252313811Z","published":"2026-06-12T08:51:45.207Z","database_specific":{"cpes":["cpe:2.3:a:sqlite:sqlite:*:*:*:*:*:*:*:*"],"severity":"High"},"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-11824"},{"type":"WEB","url":"https://sqlite.org/releaselog/3_53_2.html"},{"type":"WEB","url":"https://sqlite.org/src/info/061febcf41ca"},{"type":"WEB","url":"https://sqlite.org/src/info/4a5ad516ea93"},{"type":"WEB","url":"https://www.vulncheck.com/advisories/sqlite-before-heap-buffer-overflow-via-fts5-fts5chunkiterate"}],"affected":[{"package":{"name":"sqlite","ecosystem":"Bitnami","purl":"pkg:bitnami/sqlite"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"3.53.2"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/sqlite/BIT-sqlite-2026-11824.json"},"severity":[{"type":"CVSS_V4","score":"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"}]}],"schema_version":"1.7.5"}