Industrial
CVE-2026-22700
HIGH
GHSA-j9xq-69pf-pcm8
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Primary rating from GitHub Advisory · only source for this CVE.
CVSS VectorGitHub Advisory
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Lifecycle Timeline
4DescriptionGitHub Advisory
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.
AnalysisAI
RustCrypto's SM2 elliptic curve implementation in versions 0.14.0-pre.0 and 0.14.0-rc.0 is vulnerable to denial-of-service through improper input validation in the decrypt() function, allowing remote attackers to crash affected applications by submitting malformed or undersized ciphertext that triggers unhandled panics. Public exploit code exists for this vulnerability, though a patch is available.
Technical ContextAI
Classified as CWE-20 (Improper Input Validation). Affects Sm2 Elliptic Curve. 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
RemediationAI
A vendor patch is available — apply it immediately. Restrict network access to the affected service where possible.
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External POC / Exploit Code
Leaving vuln.today