CVE-2026-22699 - RustCrypto SM2-PKE has Unchecked AffinePoint Decoding (unwrap) in decrypt()

CVE-2026-22699 - RustCrypto SM2-PKE has Unchecked AffinePoint Decoding (unwrap) in decrypt()

https://cvefeed.io/rssfeed/latest.atom / Sat, 01/10/2026 - 07:57
CVE ID : CVE-2026-22699
Published : Jan. 10, 2026, 5:17 a.m. | 1 hour, 8 minutes ago
Description : 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.
Severity: 0.0 | NA
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