CVE-2026-22700

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 public-key encryption (PKE) implementation: the decrypt() path performs unchecked slice::split_at operations on input buffers derived from untrusted ciphertext. An attacker can submit short/undersized ciphertext or carefully-crafted DER-encoded structures to trigger bounds-check panics (Rust unwinding) which crash the calling thread or process. This issue has been patched via commit e60e991.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/RustCrypto/elliptic-curves/commit/e60e99167a9a2b187ebe80c994c5204b0fdaf4ab	Patch
https://github.com/RustCrypto/elliptic-curves/pull/1603	Patch
https://github.com/RustCrypto/elliptic-curves/security/advisories/GHSA-j9xq-69pf-pcm8	Exploit Vendor Advisory
https://github.com/RustCrypto/elliptic-curves/security/advisories/GHSA-j9xq-69pf-pcm8	Exploit Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:rustcrypto:sm2_elliptic_curve:0.14.0:pre0::::rust::*
	cpe:2.3:a:rustcrypto:sm2_elliptic_curve:0.14.0:rc0::::rust::*

History

No history.

Information

Published : 2026-01-10 06:15

Updated : 2026-01-22 14:53

NVD link : CVE-2026-22700

Mitre link : CVE-2026-22700

CVE.ORG link : CVE-2026-22700

JSON object : View

Products Affected

rustcrypto

sm2_elliptic_curve

CWE

CWE-20

Improper Input Validation

NVD-CWE-noinfo

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