CVE-2026-51290: SQLite memory corruption in btree module

CVE-2026-51290 · Severity: info · CVSS 7.5 · Published 2026-07-30

SQLite, a widely used database engine, contains a memory handling flaw when processing specially crafted database files. If an application using the vulnerable version of SQLite opens a malicious database file, it could lead to a program crash or the unintended exposure of sensitive information from the computer's memory. This could disrupt operations or leak data if users are tricked into opening untrusted files.

Quick answers

Is CVE-2026-51290 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-51290 being exploited in the wild.
How severe is CVE-2026-51290?
Informational severity, with a CVSS score of 7.5, published 30 July 2026.
Which products and versions are affected?
SQLite Consortium SQLite 3.41.0.
Is there a fix for CVE-2026-51290?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-51290 attacked?
It is attacked with local access, in a software library.
Am I affected by CVE-2026-51290?
Check whether anything you run is named in the advisory. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A memory corruption vulnerability exists in the btree.c module of SQLite 3.41.0. The vulnerability stems from two related issues: a use-after-free in the shared cache lock management where a BtLock structure is freed without being removed from a linked list, and insufficient boundary checking for B-tree page offset values. An attacker can exploit this by providing a specially crafted .db file. When the library parses this file, it performs invalid memory read/write operations during page traversal. This can result in a denial of service (application crash) or sensitive memory information disclosure. As of the advisory date, a fix is pending.

Affected products

  • SQLite Consortium SQLite 3.41.0

Timeline

  • 2026-07-30: disclosed
  • 2026-07-30: advisory

References

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