Out-of-Bounds Affecting maxminddb package, versions >=0.11.0 <0.27.0
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Test your applications- Snyk IDSNYK-RUST-MAXMINDDB-14152001
- published30 Nov 2025
- disclosed28 Nov 2025
- creditUnknown
Introduced: 28 Nov 2025
New CVE NOT AVAILABLE CWE-119 (opens in a new tab)Common Weakness Enumeration (CWE) is a category system for software weaknesses
How to fix?
Upgrade maxminddb to version 0.27.0 or higher.
Overview
Affected versions of this package are vulnerable to Out-of-Bounds via the Reader::open_mmap function, which unsoundly marks unsafe memmap operation as safe. An attacker can cause undefined behavior or memory corruption by modifying the underlying file on disk while the memory map is still active.