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.

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00038.

Exploitation poc

Automatable yes

Technical Impact partial

Affected Vendors & Products

Vendors Products
Rustcrypto Subscribe
Elliptic-curves Subscribe

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Vendors Products
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Elliptic-curves Subscribe
Advisories
Source ID Title
Github GHSA Github GHSA GHSA-j9xq-69pf-pcm8 RustCrypto Has Insufficient Length Validation in decrypt() in SM2-PKE
Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/RustCrypto/elliptic-curves/commit/e60e99167a9a2b187ebe80c994c5204b0fdaf4ab cve-icon cve-icon
https://github.com/RustCrypto/elliptic-curves/pull/1603 cve-icon cve-icon
https://github.com/RustCrypto/elliptic-curves/security/advisories/GHSA-j9xq-69pf-pcm8 cve-icon cve-icon cve-icon
History

Mon, 12 Jan 2026 15:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Mon, 12 Jan 2026 14:45:00 +0000

Type Values Removed Values Added
First Time appeared Rustcrypto
Rustcrypto elliptic-curves
Vendors & Products Rustcrypto
Rustcrypto elliptic-curves

Sat, 10 Jan 2026 05:30:00 +0000

Type Values Removed Values Added
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 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.
Title RustCrypto Has Insufficient Length Validation in decrypt() in SM2-PKE
Weaknesses CWE-20
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-01-12T14:46:46.227Z

Reserved: 2026-01-08T19:23:09.856Z

Link: CVE-2026-22700

cve-icon Vulnrichment

Updated: 2026-01-12T14:46:26.854Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-01-10T06:15:52.517

Modified: 2026-01-13T14:03:18.990

Link: CVE-2026-22700

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-01-12T14:36:49Z

Weaknesses