CVE-2026-22699
HIGH
GHSA-78p6-6878-8mj6
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Lifecycle Timeline
4Description
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.
Analysis
RustCrypto Elliptic Curves versions 0.14.0-pre.0 and 0.14.0-rc.0 are vulnerable to denial-of-service when decrypting SM2 public key encryption, as invalid curve points with syntactically valid coordinates cause an unhandled panic during point validation. Public exploit code exists for this vulnerability, affecting applications that use the SM2 implementation. …
Sign in for full analysis, threat intelligence, and remediation guidance.
Remediation
Within 7 days: Identify all affected systems and apply vendor patches promptly. Vendor patch is available.
Sign in for detailed remediation steps.
Priority Score
Share
External POC / Exploit Code
Leaving vuln.today