{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-22700", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-01-08T19:23:09.856Z", "datePublished": "2026-01-10T05:17:25.583Z", "dateUpdated": "2026-01-12T14:46:46.227Z" }, "containers": { "cna": { "title": "RustCrypto Has Insufficient Length Validation in decrypt() in SM2-PKE", "problemTypes": [ { "descriptions": [ { "cweId": "CWE-20", "lang": "en", "description": "CWE-20: Improper Input Validation", "type": "CWE" } ] } ], "metrics": [ { "cvssV3_1": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1" } } ], "references": [ { "name": "https://github.com/RustCrypto/elliptic-curves/security/advisories/GHSA-j9xq-69pf-pcm8", "tags": [ "x_refsource_CONFIRM" ], "url": "https://github.com/RustCrypto/elliptic-curves/security/advisories/GHSA-j9xq-69pf-pcm8" }, { "name": "https://github.com/RustCrypto/elliptic-curves/pull/1603", "tags": [ "x_refsource_MISC" ], "url": "https://github.com/RustCrypto/elliptic-curves/pull/1603" }, { "name": "https://github.com/RustCrypto/elliptic-curves/commit/e60e99167a9a2b187ebe80c994c5204b0fdaf4ab", "tags": [ "x_refsource_MISC" ], "url": "https://github.com/RustCrypto/elliptic-curves/commit/e60e99167a9a2b187ebe80c994c5204b0fdaf4ab" } ], "affected": [ { "vendor": "RustCrypto", "product": "elliptic-curves", "versions": [ { "version": "= 0.14.0-pre.0", "status": "affected" }, { "version": "= 0.14.0-rc.0", "status": "affected" } ] } ], "providerMetadata": { "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-01-10T05:17:25.583Z" }, "descriptions": [ { "lang": "en", "value": "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." } ], "source": { "advisory": "GHSA-j9xq-69pf-pcm8", "discovery": "UNKNOWN" } }, "adp": [ { "references": [ { "url": "https://github.com/RustCrypto/elliptic-curves/security/advisories/GHSA-j9xq-69pf-pcm8", "tags": [ "exploit" ] } ], "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-01-12T14:46:42.360189Z", "id": "CVE-2026-22700", "options": [ { "Exploitation": "poc" }, { "Automatable": "yes" }, { "Technical Impact": "partial" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-01-12T14:46:46.227Z" } } ] } }