Integer Overflow or Wraparound Affecting hpke-rs package, versions <0.6.0
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Start learning- Snyk IDSNYK-RUST-HPKERS-15285653
- published16 Feb 2026
- disclosed13 Feb 2026
- creditNadim Kobeissi
Introduced: 13 Feb 2026
New CVE NOT AVAILABLE CWE-190 (opens in a new tab)Common Weakness Enumeration (CWE) is a category system for software weaknesses
How to fix?
Upgrade hpke-rs to version 0.6.0 or higher.
Overview
hpke-rs is an implementation of HPKE (RFC 9180) with flexible crypto backends.
Affected versions of this package are vulnerable to Integer Overflow or Wraparound due to the unchecked sequence number increment in the Context encryption/decryption routines in src/lib.rs. An attacker can cause nonce reuse and compromise AEAD confidentiality and integrity by triggering a wraparound of the 32-bit context counter past its maximum value.