Untrusted Pointer Dereference Affecting capnp package, versions <0.24.0
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Test your applications- Snyk IDSNYK-RUST-CAPNP-15124531
- published28 Jan 2026
- disclosed24 Dec 2025
- creditRafael shinmao
Introduced: 24 Dec 2025
CVE NOT AVAILABLE CWE-822 (opens in a new tab)Common Weakness Enumeration (CWE) is a category system for software weaknesses
How to fix?
Upgrade capnp to version 0.24.0 or higher.
Overview
capnp is a runtime library for Cap'n Proto data encoding
Affected versions of this package are vulnerable to Untrusted Pointer Dereference via the get and new functions. An attacker can cause undefined behavior and violate memory safety guarantees by invoking these functions, which access internal data without proper validation.