SQLite before 3.54.0 contains an information disclosure vulnerability that allows attackers to read uninitialized page-cache memory by supplying a WAL file with an undersized page size. Attackers can craft a database and WAL file whose oversized record payload makes queries like substr() return stale bytes, disclosing other table rows and internal pointers.
Weakness
The product uses or accesses a resource that has not been initialized.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Sqlite | Sqlite | * | 3.54.0 (excluding) |
| Sqlite | Ubuntu | upstream | * |
Potential Mitigations
References
- https://abraxaslabs.tech/research/sqlite-wal-pagesize
- https://github.com/sqlite/sqlite
- https://github.com/sqlite/sqlite/blob/version-3.53.4/src/wal.c#L3672
- https://github.com/sqlite/sqlite/commit/e5bf119821f25be1d7f10ef0a2edbe175289166e
- https://sqlite.org/bugs/info/2026-08-17T15:54:41Z
- https://sqlite.org/releaselog/3_54_0.html
- https://sqlite.org/src/info/f9b4ee369557c36c
- https://www.vulncheck.com/advisories/sqlite-before-3.54.0-information-disclosure-via-wal-page-size-mismatch