rssant 1.9.0 through 1.9.1 Information Disclosure via publish.story_get Endpoint

{
  "id": "afac392078cbeb6438c4604db018692b9c90ccac4b5fe9406b46f1aacd9312f8",
  "url": "https://www.cve.org/CVERecord?id=CVE-2026-117562",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "rssant 1.9.0 through 1.9.1 Information Disclosure via publish.story_get Endpoint",
    "summary": "rssant 1.9.0 through 1.9.1 contains an authorization bypass vulnerability that allows unauthenticated attackers to read stories from unpublished feeds through the anonymous publish.story_get endpoint. Because UnionStory.get_by_feed_offset ignores the only_publish flag, attackers can enumerate feed IDs and offsets to retrieve private feed stories.",
    "evidence": "cve:CVE-2026-117562",
    "products": [
      {
        "name": {
          "value": "rssant",
          "evidence": "/containers/cna/affected/0/product"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": []
      }
    ],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-117562",
      "aliases": [
        "CVE-2026-117562"
      ],
      "metrics": [
        {
          "format": "CVSS",
          "cvssV4_0": {
            "version": "4.0",
            "baseScore": 6.9,
            "attackVector": "NETWORK",
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N",
            "userInteraction": "NONE",
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "privilegesRequired": "NONE",
            "subIntegrityImpact": "NONE",
            "vulnIntegrityImpact": "NONE",
            "subAvailabilityImpact": "NONE",
            "vulnAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "vulnConfidentialityImpact": "LOW"
          }
        },
        {
          "format": "CVSS",
          "cvssV3_1": {
            "scope": "UNCHANGED",
            "version": "3.1",
            "baseScore": 5.3,
            "attackVector": "NETWORK",
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
            "integrityImpact": "NONE",
            "userInteraction": "NONE",
            "attackComplexity": "LOW",
            "availabilityImpact": "NONE",
            "privilegesRequired": "NONE",
            "confidentialityImpact": "LOW"
          }
        }
      ],
      "affected": [
        {
          "vendor": "anyant",
          "product": "rssant",
          "versions": [
            {
              "status": "affected",
              "version": "1.9.0",
              "versionType": "semver",
              "lessThanOrEqual": "1.9.1"
            }
          ],
          "defaultStatus": "unaffected"
        }
      ],
      "modified": "2026-10-27T13:07:56.982Z",
      "provider": "cve",
      "references": [
        "https://github.com/anyant/rssant/issues/155",
        "https://github.com/anyant/rssant",
        "https://github.com/anyant/rssant/commit/b65336f1414a32a50670ee2ba7e87cb38e0ad47b",
        "https://github.com/anyant/rssant/blob/v1.9.1/rssant_api/models/union_story.py#L197-L200",
        "https://www.vulncheck.com/advisories/rssant-1.9.0-through-1.9.1-information-disclosure-via-publish-story-get-endpoint"
      ],
      "provider_metadata": {
        "cna": {
          "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
          "shortName": "VulnCheck",
          "dateUpdated": "2026-10-27T13:07:56.982Z"
        }
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-117562",
        "evidence": "/cveMetadata/cveId"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/containers/cna/metrics"
  },
  "source_id": "core-cve",
  "document_id": 392688,
  "published_at": "2026-10-27T13:07:56.982+00:00"
}