7.5

CVE-2026-22699

Exploit

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

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Rustcrypto ≫ Sm2 Elliptic Curve Version0.14.0 Updatepre0 SwPlatformrust
Rustcrypto ≫ Sm2 Elliptic Curve Version0.14.0 Updaterc0 SwPlatformrust
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.38% 0.291
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
security-advisories@github.com 7.5 3.9 3.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-20 Improper Input Validation

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

https://github.com/RustCrypto/elliptic-curves/security/advisories/GHSA-78p6-6878-8mj6
Vendor Advisory
Exploit
https://github.com/RustCrypto/elliptic-curves/pull/1602
Patch
Issue Tracking
https://github.com/RustCrypto/elliptic-curves/commit/085b7bee647029bd189e1375203418205006bcab
Patch