{
  "schemaVersion": 1,
  "attribution": [
    {
      "source": "CISA Known Exploited Vulnerabilities",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "licence": "US government work"
    },
    {
      "source": "GitHub Advisory Database",
      "url": "https://github.com/advisories",
      "licence": "CC BY 4.0"
    },
    {
      "source": "Have I Been Pwned",
      "url": "https://haveibeenpwned.com/",
      "licence": "CC BY 4.0"
    },
    {
      "source": "CVE Program (CVE records)",
      "url": "https://www.cve.org/Legal/TermsOfUse",
      "licence": "CVE Terms of Use",
      "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.",
      "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss/",
      "licence": "free to use; FIRST requests attribution"
    }
  ],
  "record": {
    "id": "CVE-2026-55759",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-55759",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-06-24T21:07:29.331Z",
    "updatedAt": "2026-06-26T03:55:28.570Z",
    "importedAt": "2026-10-24T01:58:20.586Z",
    "snapshot": {
      "id": "cve_2026-10-24_midnight_baseline",
      "at": "2026-10-24T00:00:00.000Z",
      "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z"
    },
    "facts": {
      "title": "Rocket.Chat: Apple Sign-In skips JWT claims validation, allowing expired and cross-audience token replay",
      "summary": "Rocket.Chat is an open-source, secure, fully customizable communications platform. Prior to 8.5.1, 8.4.4, 8.3.6, 8.2.6, 8.1.6, 8.0.7, and 7.10.13, Rocket.Chat's Apple Sign-In handler verifies JWT signatures but skips claims validation. Any Apple-signed JWT with a non-empty iss is accepted regardless of aud, exp, nbf, or nonce. An attacker who obtains a target user's Apple identity token (from server logs, an intercepted sign-in flow, or another application sharing the same Apple developer team) can replay it to authenticate as that user, with no expiration on the replay window. This vulnerability is fixed in 8.5.1, 8.4.4, 8.3.6, 8.2.6, 8.1.6, 8.0.7, and 7.10.13.",
      "affected": [
        {
          "vendor": "RocketChat",
          "product": "Rocket.Chat",
          "versions": [
            {
              "version": ">= 8.5.0-rc.0, < 8.5.1",
              "status": "affected"
            },
            {
              "version": ">= 8.4.0-rc.0, < 8.4.4",
              "status": "affected"
            },
            {
              "version": ">= 8.3.0-rc.0, < 8.3.6",
              "status": "affected"
            },
            {
              "version": ">= 8.2.0-rc.0, < 8.2.6",
              "status": "affected"
            },
            {
              "version": ">= 8.1.0-rc.0, < 8.1.6",
              "status": "affected"
            },
            {
              "version": ">= 7.11.0-rc.0, < 8.0.7",
              "status": "affected"
            },
            {
              "version": "< 7.10.13",
              "status": "affected"
            }
          ]
        }
      ]
    }
  }
}