CVE-2026-105695 (GCVE-0-2026-105695)
Vulnerability from cvelistv5
Published
2026-10-05 20:04
Modified
2026-10-05 20:40
Severity ?
5.9 (Medium) - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:L
CWE
Summary
Penpot is an open-source design and prototyping platform. Prior to 2.18.0, assemble-chunks retrieves an upload session using only its session ID, while upload-chunk correctly scopes the lookup to the authenticated profile. An authenticated user who obtains another user's live, completed upload-session UUID can assemble the victim's chunks into the attacker's own file, team font, or project import, disclosing the uploaded bytes and deleting the victim's pending session. This issue is fixed in version 2.18.0.
References
Impacted products
Vendor Product Version
penpot penpot Version: < 2.18.0
 Create a notification for this product.
Show details on NVD website

To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-105695",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-10-05T20:40:35.188252Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-10-05T20:40:42.567Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "exploit"
            ],
            "url": "https://github.com/penpot/penpot/security/advisories/GHSA-5vrm-3c6w-gjfv"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "penpot",
          "vendor": "penpot",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 2.18.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Penpot is an open-source design and prototyping platform. Prior to 2.18.0, assemble-chunks retrieves an upload session using only its session ID, while upload-chunk correctly scopes the lookup to the authenticated profile. An authenticated user who obtains another user\u0027s live, completed upload-session UUID can assemble the victim\u0027s chunks into the attacker\u0027s own file, team font, or project import, disclosing the uploaded bytes and deleting the victim\u0027s pending session. This issue is fixed in version 2.18.0."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 5.9,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:L",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-862",
              "description": "CWE-862: Missing Authorization",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-05T20:04:22.743Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/penpot/penpot/security/advisories/GHSA-5vrm-3c6w-gjfv",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/penpot/penpot/security/advisories/GHSA-5vrm-3c6w-gjfv"
        },
        {
          "name": "https://github.com/penpot/penpot/pull/11012",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/penpot/penpot/pull/11012"
        },
        {
          "name": "https://github.com/penpot/penpot/commit/367e4d534c536c33d4f3fbad375f3e9c29b787a6",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/penpot/penpot/commit/367e4d534c536c33d4f3fbad375f3e9c29b787a6"
        },
        {
          "name": "https://github.com/penpot/penpot/releases/tag/2.18.0",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/penpot/penpot/releases/tag/2.18.0"
        }
      ],
      "source": {
        "advisory": "GHSA-5vrm-3c6w-gjfv",
        "discovery": "UNKNOWN"
      },
      "title": "Penpot: Missing authorization in chunked-upload assembly lets another authenticated user consume a victim\u0027s upload session"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-105695",
    "datePublished": "2026-10-05T20:04:22.743Z",
    "dateReserved": "2026-10-05T17:48:58.627Z",
    "dateUpdated": "2026-10-05T20:40:42.567Z",
    "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-2026-105695\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"poc\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-10-05T20:40:35.188252Z\"}}}], \"references\": [{\"url\": \"https://github.com/penpot/penpot/security/advisories/GHSA-5vrm-3c6w-gjfv\", \"tags\": [\"exploit\"]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-10-05T20:40:18.735Z\"}}], \"cna\": {\"title\": \"Penpot: Missing authorization in chunked-upload assembly lets another authenticated user consume a victim\u0027s upload session\", \"source\": {\"advisory\": \"GHSA-5vrm-3c6w-gjfv\", \"discovery\": \"UNKNOWN\"}, \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 5.9, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:L\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"HIGH\", \"availabilityImpact\": \"LOW\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"HIGH\"}}], \"affected\": [{\"vendor\": \"penpot\", \"product\": \"penpot\", \"versions\": [{\"status\": \"affected\", \"version\": \"\u003c 2.18.0\"}]}], \"references\": [{\"url\": \"https://github.com/penpot/penpot/security/advisories/GHSA-5vrm-3c6w-gjfv\", \"name\": \"https://github.com/penpot/penpot/security/advisories/GHSA-5vrm-3c6w-gjfv\", \"tags\": [\"x_refsource_CONFIRM\"]}, {\"url\": \"https://github.com/penpot/penpot/pull/11012\", \"name\": \"https://github.com/penpot/penpot/pull/11012\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/penpot/penpot/commit/367e4d534c536c33d4f3fbad375f3e9c29b787a6\", \"name\": \"https://github.com/penpot/penpot/commit/367e4d534c536c33d4f3fbad375f3e9c29b787a6\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/penpot/penpot/releases/tag/2.18.0\", \"name\": \"https://github.com/penpot/penpot/releases/tag/2.18.0\", \"tags\": [\"x_refsource_MISC\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"Penpot is an open-source design and prototyping platform. Prior to 2.18.0, assemble-chunks retrieves an upload session using only its session ID, while upload-chunk correctly scopes the lookup to the authenticated profile. An authenticated user who obtains another user\u0027s live, completed upload-session UUID can assemble the victim\u0027s chunks into the attacker\u0027s own file, team font, or project import, disclosing the uploaded bytes and deleting the victim\u0027s pending session. This issue is fixed in version 2.18.0.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-862\", \"description\": \"CWE-862: Missing Authorization\"}]}], \"providerMetadata\": {\"orgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"shortName\": \"GitHub_M\", \"dateUpdated\": \"2026-10-05T20:04:22.743Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-105695\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-10-05T20:40:42.567Z\", \"dateReserved\": \"2026-10-05T17:48:58.627Z\", \"assignerOrgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"datePublished\": \"2026-10-05T20:04:22.743Z\", \"assignerShortName\": \"GitHub_M\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




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.