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    RUSTSEC-2026-0286 (GHSA-R6VC-97X9-63VV)

    Vulnerability from osv_rustsec – Published: 2026-09-16 12:00 – Updated: 2026-09-17 07:37 – Source website
    VLAI
    Summary
    Out-of-bounds read when decoding CKA_ALLOWED_MECHANISMS
    Details

    cryptoki treated the CKA_ALLOWED_MECHANISMS ulValueLen byte count as a CK_MECHANISM_TYPE element count. A valid nonempty attribute returned through the safe Session::get_attributes API could cause construction of an out-of-bounds slice and undefined behavior.

    Possible consequences include a process crash or denial of service and potential disclosure of adjacent heap words. Upgrade to the fixed patch release for the cryptoki 0.10, 0.11, or 0.12 line.


    {
      "affected": [
        {
          "database_specific": {
            "categories": [
              "memory-exposure"
            ],
            "cvss": null,
            "informational": null
          },
          "ecosystem_specific": {
            "affected_functions": null,
            "affects": {
              "arch": [],
              "functions": [],
              "os": []
            }
          },
          "package": {
            "ecosystem": "crates.io",
            "name": "cryptoki",
            "purl": "pkg:cargo/cryptoki"
          },
          "ranges": [
            {
              "events": [
                {
                  "introduced": "0.0.0-0"
                },
                {
                  "fixed": "0.10.1"
                },
                {
                  "introduced": "0.11.0"
                },
                {
                  "fixed": "0.11.1"
                },
                {
                  "introduced": "0.12.0"
                },
                {
                  "fixed": "0.12.1"
                }
              ],
              "type": "SEMVER"
            }
          ],
          "versions": []
        }
      ],
      "aliases": [
        "GHSA-r6vc-97x9-63vv"
      ],
      "database_specific": {
        "license": "CC0-1.0"
      },
      "details": "`cryptoki` treated the CKA_ALLOWED_MECHANISMS ulValueLen byte count as a\nCK_MECHANISM_TYPE element count. A valid nonempty attribute returned through\nthe safe `Session::get_attributes` API could cause construction of an\nout-of-bounds slice and undefined behavior.\n\nPossible consequences include a process crash or denial of service and\npotential disclosure of adjacent heap words. Upgrade to the fixed patch release\nfor the cryptoki 0.10, 0.11, or 0.12 line.",
      "id": "RUSTSEC-2026-0286",
      "modified": "2026-09-17T07:37:14Z",
      "published": "2026-09-16T12:00:00Z",
      "references": [
        {
          "type": "PACKAGE",
          "url": "https://crates.io/crates/cryptoki"
        },
        {
          "type": "ADVISORY",
          "url": "https://rustsec.org/advisories/RUSTSEC-2026-0286.html"
        },
        {
          "type": "WEB",
          "url": "https://github.com/parallaxsecond/rust-cryptoki/pull/368"
        }
      ],
      "related": [],
      "severity": [],
      "summary": "Out-of-bounds read when decoding CKA_ALLOWED_MECHANISMS"
    }