CVE-2026-102478 (GCVE-0-2026-102478)
Vulnerability from cvelistv5
Published
2026-10-07 01:17
Modified
2026-10-07 18:40
CWE
  • CWE-1289 - Improper Validation of Unsafe Equivalence in Input
Summary
In affected versions of Octopus Server, an authenticated user with permission to modify roles could bypass the protections preventing access abuse resulting in privilege escalation. It was possible for the built-in role to be weakened and the attacker's account added to a privileged team. This was achievable due to improper validation of unsafe equivalence in inputs.
Impacted products
Vendor Product Version
Octopus Deploy Octopus Server Version: 2023.2.945   < 2026.1.11768
Version: 2026.2.0   < 2026.2.13408
Version: 2026.3.0   < 2026.3.15816
Create a notification for this product.
Show details on NVD website


{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-102478",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-10-07T18:40:08.538496Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-10-07T18:40:25.736Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "platforms": [
            "Windows",
            "Linux"
          ],
          "product": "Octopus Server",
          "vendor": "Octopus Deploy",
          "versions": [
            {
              "lessThan": "2026.1.11768",
              "status": "affected",
              "version": "2023.2.945",
              "versionType": "custom"
            },
            {
              "lessThan": "2026.2.13408",
              "status": "affected",
              "version": "2026.2.0",
              "versionType": "custom"
            },
            {
              "lessThan": "2026.3.15816",
              "status": "affected",
              "version": "2026.3.0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "This vulnerability was found by Nathan Willoughby"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "In affected versions of Octopus Server, an authenticated user with permission to modify roles could bypass the protections preventing access abuse resulting in privilege escalation. It was possible for the built-in role to be weakened and the attacker\u0027s account added to a privileged team. This was achievable due to improper validation of unsafe equivalence in inputs."
            }
          ],
          "value": "In affected versions of Octopus Server, an authenticated user with permission to modify roles could bypass the protections preventing access abuse resulting in privilege escalation. It was possible for the built-in role to be weakened and the attacker\u0027s account added to a privileged team. This was achievable due to improper validation of unsafe equivalence in inputs."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 8.7,
            "baseSeverity": "HIGH",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "LOW",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-1289",
              "description": "CWE-1289: Improper Validation of Unsafe Equivalence in Input",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-07T01:17:54.724Z",
        "orgId": "6f4f8c89-ef06-4bae-a2a5-6734ddf76272",
        "shortName": "Octopus"
      },
      "references": [
        {
          "url": "https://advisories.octopus.com/post/2026/sa2026-11"
        }
      ],
      "source": {
        "discovery": "INTERNAL"
      },
      "x_generator": {
        "engine": "Vulnogram 1.0.5"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "6f4f8c89-ef06-4bae-a2a5-6734ddf76272",
    "assignerShortName": "Octopus",
    "cveId": "CVE-2026-102478",
    "datePublished": "2026-10-07T01:17:54.724Z",
    "dateReserved": "2026-09-29T08:53:05.496Z",
    "dateUpdated": "2026-10-07T18:40:25.736Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-102478\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-10-07T18:40:08.538496Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-10-07T18:40:18.590Z\"}}], \"cna\": {\"source\": {\"discovery\": \"INTERNAL\"}, \"credits\": [{\"lang\": \"en\", \"type\": \"finder\", \"value\": \"This vulnerability was found by Nathan Willoughby\"}], \"metrics\": [{\"format\": \"CVSS\", \"cvssV4_0\": {\"Safety\": \"NOT_DEFINED\", \"version\": \"4.0\", \"Recovery\": \"NOT_DEFINED\", \"baseScore\": 8.7, \"Automatable\": \"NOT_DEFINED\", \"attackVector\": \"NETWORK\", \"baseSeverity\": \"HIGH\", \"valueDensity\": \"NOT_DEFINED\", \"vectorString\": \"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N\", \"exploitMaturity\": \"NOT_DEFINED\", \"providerUrgency\": \"NOT_DEFINED\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"attackRequirements\": \"NONE\", \"privilegesRequired\": \"LOW\", \"subIntegrityImpact\": \"NONE\", \"vulnIntegrityImpact\": \"HIGH\", \"subAvailabilityImpact\": \"NONE\", \"vulnAvailabilityImpact\": \"HIGH\", \"subConfidentialityImpact\": \"NONE\", \"vulnConfidentialityImpact\": \"HIGH\", \"vulnerabilityResponseEffort\": \"NOT_DEFINED\"}, \"scenarios\": [{\"lang\": \"en\", \"value\": \"GENERAL\"}]}], \"affected\": [{\"vendor\": \"Octopus Deploy\", \"product\": \"Octopus Server\", \"versions\": [{\"status\": \"affected\", \"version\": \"2023.2.945\", \"lessThan\": \"2026.1.11768\", \"versionType\": \"custom\"}, {\"status\": \"affected\", \"version\": \"2026.2.0\", \"lessThan\": \"2026.2.13408\", \"versionType\": \"custom\"}, {\"status\": \"affected\", \"version\": \"2026.3.0\", \"lessThan\": \"2026.3.15816\", \"versionType\": \"custom\"}], \"platforms\": [\"Windows\", \"Linux\"], \"defaultStatus\": \"unaffected\"}], \"references\": [{\"url\": \"https://advisories.octopus.com/post/2026/sa2026-11\"}], \"x_generator\": {\"engine\": \"Vulnogram 1.0.5\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In affected versions of Octopus Server, an authenticated user with permission to modify roles could bypass the protections preventing access abuse resulting in privilege escalation. It was possible for the built-in role to be weakened and the attacker\u0027s account added to a privileged team. This was achievable due to improper validation of unsafe equivalence in inputs.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"In affected versions of Octopus Server, an authenticated user with permission to modify roles could bypass the protections preventing access abuse resulting in privilege escalation. It was possible for the built-in role to be weakened and the attacker\u0027s account added to a privileged team. This was achievable due to improper validation of unsafe equivalence in inputs.\", \"base64\": false}]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-1289\", \"description\": \"CWE-1289: Improper Validation of Unsafe Equivalence in Input\"}]}], \"providerMetadata\": {\"orgId\": \"6f4f8c89-ef06-4bae-a2a5-6734ddf76272\", \"shortName\": \"Octopus\", \"dateUpdated\": \"2026-10-07T01:17:54.724Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-102478\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-10-07T18:40:25.736Z\", \"dateReserved\": \"2026-09-29T08:53:05.496Z\", \"assignerOrgId\": \"6f4f8c89-ef06-4bae-a2a5-6734ddf76272\", \"datePublished\": \"2026-10-07T01:17:54.724Z\", \"assignerShortName\": \"Octopus\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.


Loading…

Loading…