CVE-2026-22700 - RustCrypto Has Insufficient Length Validation in decrypt() in SM2-PKE

CVE-2026-22700 - RustCrypto Has Insufficient Length Validation in decrypt() in SM2-PKE

https://cvefeed.io/rssfeed/latest.atom / Sat, 01/10/2026 - 07:57
CVE ID : CVE-2026-22700
Published : Jan. 10, 2026, 5:17 a.m. | 1 hour, 8 minutes ago
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.
Severity: 0.0 | NA
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