CVE-2026-22699

High

Published: 10/01/2026(UTC)Translated: 05/08/2026(UTC)NVD NIST

Summary

In the RustCrypto: Elliptic Curves library, versions 0.14.0-pre.0 and 0.14.0-rc.0, a denial-of-service vulnerability exists in the SM2 PKE decryption path. An invalid elliptic-curve point (C1) is decoded and the result is unwrapped without checking, causing a panic.

Risk Assessment

An attacker can send specially crafted input, causing the application using this library to crash, leading to denial of service.

Recommendation

Update the library to a patched version (commit 085b7be) or later immediately to mitigate the vulnerability.

Other vulnerabilities in RustCrypto: Elliptic Curves

CVE-2026-22700High
In RustCrypto: Elliptic Curves versions 0.14.0-pre.0 and 0.14.0-rc.0, a denial-of-service vulnerability exists in the SM2 public-key encryption implementation. The decrypt() function performs unchecked slice::split_at operations on buffers derived from untrusted ciphertext, which can trigger bounds-check panics and crash the calling thread or process.

Original NVD description (English source)

RustCrypto: Elliptic Curves is general purpose Elliptic Curve Cryptography (ECC) support, including types and traits for representing various elliptic curve forms, scalars, points, and public/secret keys composed thereof. In versions 0.14.0-pre.0 and 0.14.0-rc.0, a denial-of-service vulnerability exists in the SM2 PKE decryption path where an invalid elliptic-curve point (C1) is decoded and the resulting value is unwrapped without checking. Specifically, AffinePoint::from_encoded_point(&encoded_c1) may return a None/CtOption::None when the supplied coordinates are syntactically valid but do not lie on the SM2 curve. The calling code previously used .unwrap(), causing a panic when presented with such input. This issue has been patched via commit 085b7be.