{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "postiz-app",
          "vendor": "gitroomhq",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 2.21.5"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Postiz is an AI social media scheduling tool. Prior to 2.21.5, the /api/public/stream endpoint is vulnerable to SSRF. Although the application validates the initially supplied URL and blocks direct private/internal hosts, it does not re-validate the final destination after HTTP redirects. As a result, an attacker can supply a public HTTPS URL that passes validation and then redirects the server-side request to an internal resource."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 8.2,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-918",
              "description": "CWE-918: Server-Side Request Forgery (SSRF)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-10T19:20:16.365Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/gitroomhq/postiz-app/security/advisories/GHSA-34w8-5j2v-h6ww",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/gitroomhq/postiz-app/security/advisories/GHSA-34w8-5j2v-h6ww"
        },
        {
          "name": "https://github.com/gitroomhq/postiz-app/commit/30e8b777098157362769226d1b46d83ad616cb06",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/gitroomhq/postiz-app/commit/30e8b777098157362769226d1b46d83ad616cb06"
        },
        {
          "name": "https://github.com/gitroomhq/postiz-app/releases/tag/v2.21.5",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/gitroomhq/postiz-app/releases/tag/v2.21.5"
        }
      ],
      "source": {
        "advisory": "GHSA-34w8-5j2v-h6ww",
        "discovery": "UNKNOWN"
      },
      "title": "Postiz has Server-Side Request Forgery via Redirect Bypass in /api/public/stream"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-40168",
    "datePublished": "2026-04-10T19:20:16.365Z",
    "dateReserved": "2026-04-09T19:31:56.014Z",
    "dateUpdated": "2026-04-10T19:20:16.365Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-40168\",\"sourceIdentifier\":\"security-advisories@github.com\",\"published\":\"2026-04-10T20:16:22.643\",\"lastModified\":\"2026-04-10T20:16:22.643\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Postiz is an AI social media scheduling tool. Prior to 2.21.5, the /api/public/stream endpoint is vulnerable to SSRF. Although the application validates the initially supplied URL and blocks direct private/internal hosts, it does not re-validate the final destination after HTTP redirects. As a result, an attacker can supply a public HTTPS URL that passes validation and then redirects the server-side request to an internal resource.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L\",\"baseScore\":8.2,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"LOW\"},\"exploitabilityScore\":3.9,\"impactScore\":4.2}]},\"weaknesses\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-918\"}]}],\"references\":[{\"url\":\"https://github.com/gitroomhq/postiz-app/commit/30e8b777098157362769226d1b46d83ad616cb06\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/gitroomhq/postiz-app/releases/tag/v2.21.5\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/gitroomhq/postiz-app/security/advisories/GHSA-34w8-5j2v-h6ww\",\"source\":\"security-advisories@github.com\"}]}}"
  }
}