Vulnerability-Lookup

FKIE_CVE-2026-82673

Vulnerability from fkie_nvd - Published: 2026-08-31 03:16 - Updated: 2026-09-01 21:15

Severity

8.3 (High) - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:H/SA:N

Summary

Improper Limitation of a Pathname to a Restricted Directory (Path Traversal) vulnerability in ash-project ash_admin allows writing attacker-controlled bytes to arbitrary paths on the server. AshAdmin.Components.Resource.Form.consume_file_uploads/1 builds the destination as Path.join([tmp_dir, entry.client_name]) and writes it with File.cp!/2. entry.client_name is the browser-supplied filename and is not sanitized, and Path.join/1 does not normalize ... An upload named ../../../../var/www/app/priv/static/x.png therefore escapes the random temp directory and lands anywhere the BEAM user can write, enabling arbitrary file write and potentially remote code execution by overwriting application assets, configuration, or cron/ssh files. The only guard is an extension allowlist defaulting to :any that checks only the extension. The fix strips path components with Path.basename/1 before joining. This issue affects ash_admin: from 0.13.7 before 1.3.1.

References

	URL	Tags
	6b3ad84c-e1a6-4bf7-a703-f496b71e49db	https://cna.erlef.org/cves/CVE-2026-82673.html
	6b3ad84c-e1a6-4bf7-a703-f496b71e49db	https://github.com/ash-project/ash_admin/commit/4bb41cb697f3d9be58462d727aed75aba76efc82
	6b3ad84c-e1a6-4bf7-a703-f496b71e49db	https://github.com/ash-project/ash_admin/security/advisories/GHSA-483p-rgcq-p5j9
	6b3ad84c-e1a6-4bf7-a703-f496b71e49db	https://osv.dev/vulnerability/EEF-CVE-2026-82673
	134c704f-9b21-4f2e-91b3-4a467353bcc0	https://github.com/ash-project/ash_admin/security/advisories/GHSA-483p-rgcq-p5j9

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "collectionURL": "https://repo.hex.pm",
          "cpes": [
            "cpe:2.3:a:ash-project:ash_admin:*:*:*:*:*:*:*:*"
          ],
          "defaultStatus": "unaffected",
          "modules": [
            "\u0027Elixir.AshAdmin.Components.Resource.Form\u0027"
          ],
          "packageName": "ash_admin",
          "packageURL": "pkg:hex/ash_admin",
          "product": "ash_admin",
          "programFiles": [
            "lib/ash_admin/components/resource/form.ex"
          ],
          "programRoutines": [
            {
              "name": "\u0027Elixir.AshAdmin.Components.Resource.Form\u0027:consume_file_uploads/1"
            }
          ],
          "repo": "https://github.com/ash-project/ash_admin",
          "vendor": "ash-project",
          "versions": [
            {
              "lessThan": "1.3.1",
              "status": "affected",
              "version": "0.13.7",
              "versionType": "semver"
            }
          ]
        },
        {
          "collectionURL": "https://github.com",
          "cpes": [
            "cpe:2.3:a:ash-project:ash_admin:*:*:*:*:*:*:*:*"
          ],
          "defaultStatus": "unaffected",
          "modules": [
            "\u0027Elixir.AshAdmin.Components.Resource.Form\u0027"
          ],
          "packageName": "ash-project/ash_admin",
          "packageURL": "pkg:github/ash-project/ash_admin",
          "product": "ash_admin",
          "programFiles": [
            "lib/ash_admin/components/resource/form.ex"
          ],
          "programRoutines": [
            {
              "name": "\u0027Elixir.AshAdmin.Components.Resource.Form\u0027:consume_file_uploads/1"
            }
          ],
          "repo": "https://github.com/ash-project/ash_admin",
          "vendor": "ash-project",
          "versions": [
            {
              "lessThan": "4bb41cb697f3d9be58462d727aed75aba76efc82",
              "status": "affected",
              "version": "e8f496b6a064ad67dc1cd30433e5921d2192d254",
              "versionType": "git"
            }
          ]
        }
      ],
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Improper Limitation of a Pathname to a Restricted Directory (Path Traversal) vulnerability in ash-project ash_admin allows writing attacker-controlled bytes to arbitrary paths on the server.\n\nAshAdmin.Components.Resource.Form.consume_file_uploads/1 builds the destination as Path.join([tmp_dir, entry.client_name]) and writes it with File.cp!/2. entry.client_name is the browser-supplied filename and is not sanitized, and Path.join/1 does not normalize ... An upload named ../../../../var/www/app/priv/static/x.png therefore escapes the random temp directory and lands anywhere the BEAM user can write, enabling arbitrary file write and potentially remote code execution by overwriting application assets, configuration, or cron/ssh files. The only guard is an extension allowlist defaulting to :any that checks only the extension. The fix strips path components with Path.basename/1 before joining.\n\nThis issue affects ash_admin: from 0.13.7 before 1.3.1."
    }
  ],
  "id": "CVE-2026-82673",
  "lastModified": "2026-09-01T21:15:00.147",
  "metrics": {
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 8.3,
          "baseSeverity": "HIGH",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "LOW",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "HIGH",
          "userInteraction": "NONE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "version": "4.0",
          "vulnAvailabilityImpact": "NONE",
          "vulnConfidentialityImpact": "NONE",
          "vulnIntegrityImpact": "HIGH",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-82673",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-08-31T14:49:53.148992Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-08-31T03:16:43.473",
  "references": [
    {
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
      "url": "https://cna.erlef.org/cves/CVE-2026-82673.html"
    },
    {
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
      "url": "https://github.com/ash-project/ash_admin/commit/4bb41cb697f3d9be58462d727aed75aba76efc82"
    },
    {
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
      "url": "https://github.com/ash-project/ash_admin/security/advisories/GHSA-483p-rgcq-p5j9"
    },
    {
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
      "url": "https://osv.dev/vulnerability/EEF-CVE-2026-82673"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "url": "https://github.com/ash-project/ash_admin/security/advisories/GHSA-483p-rgcq-p5j9"
    }
  ],
  "sourceIdentifier": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-22"
        }
      ],
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
      "type": "Secondary"
    }
  ]
}

CVE-2026-82673 (GCVE-0-2026-82673)

Vulnerability from cvelistv5 – Published: 2026-08-31 02:33 – Updated: 2026-08-31 14:50

Title

Path traversal in AshAdmin file uploads via unsanitized client filename

Summary

Severity

8.3 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:H/SA:N

SSVC

Exploitation: poc Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-31 14:49 UTC

CWE

CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Assigner

EEF CNA under the mitre root

CNA scorecard A 97/100 over 314 records in the last 180 days details

References

4 references

URL	Tags
https://github.com/ash-project/ash_admin/security…	vendor-advisoryrelated
https://cna.erlef.org/cves/CVE-2026-82673.html	related
https://osv.dev/vulnerability/EEF-CVE-2026-82673	related
https://github.com/ash-project/ash_admin/commit/4…	patch

Impacted products

2 products

Vendor	Product	Version
ash-project	ash_admin	Affected: 0.13.7 , < 1.3.1 (semver) cpe:2.3:a:ash-project:ash_admin::::::::
ash-project	ash_admin	Affected: e8f496b6a064ad67dc1cd30433e5921d2192d254 , < 4bb41cb697f3d9be58462d727aed75aba76efc82 (git) cpe:2.3:a:ash-project:ash_admin::::::::

Credits

Peter Ullrich Peter Ullrich Zach Daniel / Ash Project Jonatan Männchen / EEF

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-82673",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-31T14:49:53.148992Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-08-31T14:50:14.728Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "exploit"
            ],
            "url": "https://github.com/ash-project/ash_admin/security/advisories/GHSA-483p-rgcq-p5j9"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://repo.hex.pm",
          "cpes": [
            "cpe:2.3:a:ash-project:ash_admin:*:*:*:*:*:*:*:*"
          ],
          "defaultStatus": "unaffected",
          "modules": [
            "\u0027Elixir.AshAdmin.Components.Resource.Form\u0027"
          ],
          "packageName": "ash_admin",
          "packageURL": "pkg:hex/ash_admin",
          "product": "ash_admin",
          "programFiles": [
            "lib/ash_admin/components/resource/form.ex"
          ],
          "programRoutines": [
            {
              "name": "\u0027Elixir.AshAdmin.Components.Resource.Form\u0027:consume_file_uploads/1"
            }
          ],
          "repo": "https://github.com/ash-project/ash_admin",
          "vendor": "ash-project",
          "versions": [
            {
              "lessThan": "1.3.1",
              "status": "affected",
              "version": "0.13.7",
              "versionType": "semver"
            }
          ]
        },
        {
          "collectionURL": "https://github.com",
          "cpes": [
            "cpe:2.3:a:ash-project:ash_admin:*:*:*:*:*:*:*:*"
          ],
          "defaultStatus": "unaffected",
          "modules": [
            "\u0027Elixir.AshAdmin.Components.Resource.Form\u0027"
          ],
          "packageName": "ash-project/ash_admin",
          "packageURL": "pkg:github/ash-project/ash_admin",
          "product": "ash_admin",
          "programFiles": [
            "lib/ash_admin/components/resource/form.ex"
          ],
          "programRoutines": [
            {
              "name": "\u0027Elixir.AshAdmin.Components.Resource.Form\u0027:consume_file_uploads/1"
            }
          ],
          "repo": "https://github.com/ash-project/ash_admin",
          "vendor": "ash-project",
          "versions": [
            {
              "lessThan": "4bb41cb697f3d9be58462d727aed75aba76efc82",
              "status": "affected",
              "version": "e8f496b6a064ad67dc1cd30433e5921d2192d254",
              "versionType": "git"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:ash-project:ash_admin:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "1.3.1",
                  "versionStartIncluding": "0.13.7",
                  "vulnerable": true
                }
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              "operator": "OR"
            }
          ],
          "operator": "AND"
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      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Peter Ullrich"
        },
        {
          "lang": "en",
          "type": "reporter",
          "value": "Peter Ullrich"
        },
        {
          "lang": "en",
          "type": "remediation developer",
          "value": "Zach Daniel / Ash Project"
        },
        {
          "lang": "en",
          "type": "coordinator",
          "value": "Jonatan M\u00e4nnchen / EEF"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eImproper Limitation of a Pathname to a Restricted Directory (Path Traversal) vulnerability in ash-project ash_admin allows writing attacker-controlled bytes to arbitrary paths on the server.\u003c/p\u003e\n\u003cp\u003e\u003ccode\u003eAshAdmin.Components.Resource.Form.consume_file_uploads/1\u003c/code\u003e builds the destination as \u003ccode\u003ePath.join([tmp_dir, entry.client_name])\u003c/code\u003e and writes it with \u003ccode\u003eFile.cp!/2\u003c/code\u003e. \u003ccode\u003eentry.client_name\u003c/code\u003e is the browser-supplied filename and is not sanitized, and \u003ccode\u003ePath.join/1\u003c/code\u003e does not normalize \u003ccode\u003e..\u003c/code\u003e. An upload named \u003ccode\u003e../../../../var/www/app/priv/static/x.png\u003c/code\u003e therefore escapes the random temp directory and lands anywhere the BEAM user can write, enabling arbitrary file write and potentially remote code execution by overwriting application assets, configuration, or cron/ssh files. The only guard is an extension allowlist defaulting to \u003ccode\u003e:any\u003c/code\u003e that checks only the extension. The fix strips path components with \u003ccode\u003ePath.basename/1\u003c/code\u003e before joining.\u003c/p\u003e\n\u003cp\u003eThis issue affects ash_admin: from 0.13.7 before 1.3.1.\u003c/p\u003e"
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            }
          ],
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        }
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      "impacts": [
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      "metrics": [
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            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 8.3,
            "baseSeverity": "HIGH",
            "privilegesRequired": "LOW",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "HIGH",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:H/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "HIGH",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "format": "CVSS",
          "scenarios": [
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              "lang": "en",
              "value": "GENERAL"
            }
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      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-22",
              "description": "CWE-22 Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-31T02:33:10.967Z",
        "orgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
        "shortName": "EEF"
      },
      "references": [
        {
          "tags": [
            "vendor-advisory",
            "related"
          ],
          "url": "https://github.com/ash-project/ash_admin/security/advisories/GHSA-483p-rgcq-p5j9"
        },
        {
          "tags": [
            "related"
          ],
          "url": "https://cna.erlef.org/cves/CVE-2026-82673.html"
        },
        {
          "tags": [
            "related"
          ],
          "url": "https://osv.dev/vulnerability/EEF-CVE-2026-82673"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/ash-project/ash_admin/commit/4bb41cb697f3d9be58462d727aed75aba76efc82"
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "Path traversal in AshAdmin file uploads via unsanitized client filename"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
    "assignerShortName": "EEF",
    "cveId": "CVE-2026-82673",
    "datePublished": "2026-08-31T02:33:10.967Z",
    "dateReserved": "2026-08-30T23:15:02.381Z",
    "dateUpdated": "2026-08-31T14:50:14.728Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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