Improper Input Validation Affecting sm2 package, versions >=0.0.0


Severity

Recommended
0.0
high
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

Exploit Maturity
Proof of Concept
EPSS
0.07% (22nd percentile)

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  • Snyk IDSNYK-RUST-SM2-14912572
  • published11 Jan 2026
  • disclosed10 Jan 2026
  • creditXlabAITeam

Introduced: 10 Jan 2026

NewCVE-2026-22700  (opens in a new tab)
CWE-20  (opens in a new tab)

How to fix?

A fix was pushed into the master branch but not yet published.

Overview

Affected versions of this package are vulnerable to Improper Input Validation via the decrypt function in the decrypting.rs‎ file. An attacker can cause a crash of the calling thread or process by submitting short or carefully-crafted DER-encoded ciphertext that triggers bounds-check panics.

CVSS Base Scores

version 4.0
version 3.1