CVE-2026-11822

Description

SQLite before 3.53.2 contains memory corruption vulnerabilities in the FTS5 full-text search extension that allow attackers to cause process crashes, memory exhaustion, or arbitrary code execution by supplying a crafted database with malformed FTS5 page data. Attackers can trigger an out-of-bounds read in fts5LeafSeek() via an attacker-controlled loop bound and a heap buffer overflow write in fts5ChunkIterate() through a crafted continuation page causing an integer underflow, exploitable when an FTS5 MATCH query is executed against the malicious database.

References

Reference URLs as listed by NVD, grouped by a mechanical match on the link's host/pattern. Labels describe the link type only.

• Patch https://sqlite.org/releaselog/3_53_2.html
• Reference https://sqlite.org/src/info/061febcf41ca
• Reference https://sqlite.org/src/info/4a5ad516ea93
• Vendor advisory https://www.vulncheck.com/advisories/sqlite-before-memory-corruption-in-fts5-extension