CVE-2026-11822

Summary

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.

Affected Software

Weaknesses

• CWE-122: CWE-122 Heap-based Buffer Overflow

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: no
  • Technical Impact: total

References

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

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