What’s Vulnerable › Vulnerabilities

CVE-2026-11822: SQLite before 3.53.2 Out-of-Bounds Read in FTS5 fts5LeafSeek

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-06-09 · updated 2026-10-30
• Weakness: CWE-125

Description

SQLite before 3.53.2 contains an out-of-bounds read vulnerability in the FTS5 full-text search extension that allows attackers to crash the process by supplying a crafted database with a malformed FTS5 leaf page. Attackers can set an oversized term length in the leaf page so that fts5LeafSeek() reads past the end of the page buffer while comparing terms during an FTS5 MATCH query, in applications compiled with SQLITE_ENABLE_FTS5.

Affected products

• SQLite: before 3.53.2 — fixed in 3.53.2
• SQLite: before 3.53.2 — fixed in 3.53.2

How to fix

Upgrade to a fixed version: SQLite 3.53.2; SQLite 3.53.2. Check the vendor advisory for mitigations.

References

• https://sqlite.org/releaselog/3_53_2.html
• https://sqlite.org/src/info/87b653731171
• https://sqlite.org/src/info/fad98805b7d7
• https://www.vulncheck.com/advisories/sqlite-before-memory-corruption-in-fts5-extension
• https://cert-portal.siemens.com/productcert/html/ssa-765416.html

Get alerted when CVE-2026-11822 or the next vulnerability affects your stack