rustsec-2026-0104

{
  "affected": [
    {
      "database_specific": {
        "categories": [
          "denial-of-service"
        ],
        "cvss": null,
        "informational": null,
        "source": "https://github.com/rustsec/advisory-db/blob/osv/crates/RUSTSEC-2026-0104.json"
      },
      "ecosystem_specific": {
        "affected_functions": null,
        "affects": {
          "arch": [],
          "functions": [],
          "os": []
        }
      },
      "package": {
        "ecosystem": "crates.io",
        "name": "rustls-webpki",
        "purl": "pkg:cargo/rustls-webpki"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.0.0-0"
            },
            {
              "fixed": "0.103.13"
            },
            {
              "introduced": "0.104.0-alpha.1"
            },
            {
              "fixed": "0.104.0-alpha.7"
            }
          ],
          "type": "SEMVER"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-93599",
    "GHSA-82j2-j2ch-gfr8"
  ],
  "database_specific": {
    "license": "CC0-1.0"
  },
  "details": "A panic was reachable when parsing certificate revocation lists via [`BorrowedCertRevocationList::from_der`]\nor [`OwnedCertRevocationList::from_der`].  This was the result of mishandling a syntactically valid empty\n`BIT STRING` appearing in the `onlySomeReasons` element of a `IssuingDistributionPoint` CRL extension.\n\nThis panic is reachable prior to a CRL's signature being verified.\n\nApplications that do not use CRLs are not affected.\n\nThank you to [@tynus3](https://github.com/tynus3) for the report.",
  "id": "RUSTSEC-2026-0104",
  "modified": "2026-09-19T08:42:27Z",
  "published": "2026-04-22T12:00:00Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://crates.io/crates/rustls-webpki"
    },
    {
      "type": "ADVISORY",
      "url": "https://rustsec.org/advisories/RUSTSEC-2026-0104.html"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "Reachable panic in certificate revocation list parsing"
}