Vulnerability-Lookup

FKIE_CVE-2026-82749

Vulnerability from fkie_nvd - Published: 2026-09-01 04:18 - Updated: 2026-09-01 21:15

Severity

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

Summary

Incorrect Authorization vulnerability in ash-project ash widens a relationship's parent(...) scoping filter to match unintended records when the referenced parent field cannot be resolved. Loading a relationship whose filter references parent(...) resolves that expression against the parent record. resolve_parent_in_filter/3 (lib/ash/actions/read/relationships.ex) resolved an unresolvable parent reference (for example when the referenced field was not selected on the source query) to nil rather than failing. A scoping predicate such as org_id == parent(org_id) then becomes an IS NULL match, and a guard like is_nil(parent(org_id)) or org_id == parent(org_id) activates its unrestricted branch, so the relationship returns records the scope was meant to exclude. The fix fails the read with an error when a parent(...) reference cannot be resolved, instead of defaulting to nil. This issue affects ash: from 3.13.2 before 3.32.2.

References

	URL	Tags
	6b3ad84c-e1a6-4bf7-a703-f496b71e49db	https://cna.erlef.org/cves/CVE-2026-82749.html
	6b3ad84c-e1a6-4bf7-a703-f496b71e49db	https://github.com/ash-project/ash/commit/e52dad2c39a35f6f043f7324d26e4f4e2551dfd2
	6b3ad84c-e1a6-4bf7-a703-f496b71e49db	https://github.com/ash-project/ash/security/advisories/GHSA-j8fx-ff37-4j9c
	6b3ad84c-e1a6-4bf7-a703-f496b71e49db	https://osv.dev/vulnerability/EEF-CVE-2026-82749
	134c704f-9b21-4f2e-91b3-4a467353bcc0	https://github.com/ash-project/ash/security/advisories/GHSA-j8fx-ff37-4j9c

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "collectionURL": "https://repo.hex.pm",
          "cpes": [
            "cpe:2.3:a:ash-project:ash:*:*:*:*:*:*:*:*"
          ],
          "defaultStatus": "unaffected",
          "modules": [
            "\u0027Elixir.Ash.Actions.Read.Relationships\u0027"
          ],
          "packageName": "ash",
          "packageURL": "pkg:hex/ash",
          "product": "ash",
          "programFiles": [
            "lib/ash/actions/read/relationships.ex"
          ],
          "programRoutines": [
            {
              "name": "\u0027Elixir.Ash.Actions.Read.Relationships\u0027:resolve_parent_in_filter/3"
            },
            {
              "name": "\u0027Elixir.Ash.Actions.Read.Relationships\u0027:do_per_record_no_attributes_load/5"
            }
          ],
          "repo": "https://github.com/ash-project/ash",
          "vendor": "ash-project",
          "versions": [
            {
              "lessThan": "3.32.2",
              "status": "affected",
              "version": "3.13.2",
              "versionType": "semver"
            }
          ]
        },
        {
          "collectionURL": "https://github.com",
          "cpes": [
            "cpe:2.3:a:ash-project:ash:*:*:*:*:*:*:*:*"
          ],
          "defaultStatus": "unaffected",
          "modules": [
            "\u0027Elixir.Ash.Actions.Read.Relationships\u0027"
          ],
          "packageName": "ash-project/ash",
          "packageURL": "pkg:github/ash-project/ash",
          "product": "ash",
          "programFiles": [
            "lib/ash/actions/read/relationships.ex"
          ],
          "programRoutines": [
            {
              "name": "\u0027Elixir.Ash.Actions.Read.Relationships\u0027:resolve_parent_in_filter/3"
            },
            {
              "name": "\u0027Elixir.Ash.Actions.Read.Relationships\u0027:do_per_record_no_attributes_load/5"
            }
          ],
          "repo": "https://github.com/ash-project/ash",
          "vendor": "ash-project",
          "versions": [
            {
              "lessThan": "e52dad2c39a35f6f043f7324d26e4f4e2551dfd2",
              "status": "affected",
              "version": "0ddff26e6e6bc6d182e1af2f98b431575e5b4179",
              "versionType": "git"
            }
          ]
        }
      ],
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Incorrect Authorization vulnerability in ash-project ash widens a relationship\u0027s parent(...) scoping filter to match unintended records when the referenced parent field cannot be resolved.\n\nLoading a relationship whose filter references parent(...) resolves that expression against the parent record. resolve_parent_in_filter/3 (lib/ash/actions/read/relationships.ex) resolved an unresolvable parent reference (for example when the referenced field was not selected on the source query) to nil rather than failing. A scoping predicate such as org_id == parent(org_id) then becomes an IS NULL match, and a guard like is_nil(parent(org_id)) or org_id == parent(org_id) activates its unrestricted branch, so the relationship returns records the scope was meant to exclude. The fix fails the read with an error when a parent(...) reference cannot be resolved, instead of defaulting to nil.\n\nThis issue affects ash: from 3.13.2 before 3.32.2."
    }
  ],
  "id": "CVE-2026-82749",
  "lastModified": "2026-09-01T21:15:00.147",
  "metrics": {
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "PRESENT",
          "attackVector": "LOCAL",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 5.9,
          "baseSeverity": "MEDIUM",
          "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": "NONE",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "userInteraction": "NONE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/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": "HIGH",
          "vulnIntegrityImpact": "NONE",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-82749",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-09-01T12:37:51.333023Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-09-01T04:18:05.340",
  "references": [
    {
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
      "url": "https://cna.erlef.org/cves/CVE-2026-82749.html"
    },
    {
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
      "url": "https://github.com/ash-project/ash/commit/e52dad2c39a35f6f043f7324d26e4f4e2551dfd2"
    },
    {
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
      "url": "https://github.com/ash-project/ash/security/advisories/GHSA-j8fx-ff37-4j9c"
    },
    {
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
      "url": "https://osv.dev/vulnerability/EEF-CVE-2026-82749"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "url": "https://github.com/ash-project/ash/security/advisories/GHSA-j8fx-ff37-4j9c"
    }
  ],
  "sourceIdentifier": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-863"
        }
      ],
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
      "type": "Secondary"
    }
  ]
}

CVE-2026-82749 (GCVE-0-2026-82749)

Vulnerability from cvelistv5 – Published: 2026-09-01 03:54 – Updated: 2026-09-01 12:38

Title

Ash relationship parent(...) filter degrades to an IS NULL match when the parent field is unresolved, leaking scoped records

Summary

Severity

5.9 (Medium)


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

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-01 12:37 UTC

CWE

CWE-863 - Incorrect Authorization

Assigner

EEF CNA under the mitre root

CNA scorecard A 96/100 over 316 records in the last 180 days details

References

4 references

URL	Tags
https://github.com/ash-project/ash/security/advis…	vendor-advisoryrelated
https://cna.erlef.org/cves/CVE-2026-82749.html	related
https://osv.dev/vulnerability/EEF-CVE-2026-82749	related
https://github.com/ash-project/ash/commit/e52dad2…	patch

Impacted products

2 products

Vendor	Product	Version
ash-project	ash	Affected: 3.13.2 , < 3.32.2 (semver) cpe:2.3:a:ash-project:ash::::::::
ash-project	ash	Affected: 0ddff26e6e6bc6d182e1af2f98b431575e5b4179 , < e52dad2c39a35f6f043f7324d26e4f4e2551dfd2 (git) cpe:2.3:a:ash-project:ash::::::::

Credits

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

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-82749",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-09-01T12:37:51.333023Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-09-01T12:38:27.534Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "exploit"
            ],
            "url": "https://github.com/ash-project/ash/security/advisories/GHSA-j8fx-ff37-4j9c"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://repo.hex.pm",
          "cpes": [
            "cpe:2.3:a:ash-project:ash:*:*:*:*:*:*:*:*"
          ],
          "defaultStatus": "unaffected",
          "modules": [
            "\u0027Elixir.Ash.Actions.Read.Relationships\u0027"
          ],
          "packageName": "ash",
          "packageURL": "pkg:hex/ash",
          "product": "ash",
          "programFiles": [
            "lib/ash/actions/read/relationships.ex"
          ],
          "programRoutines": [
            {
              "name": "\u0027Elixir.Ash.Actions.Read.Relationships\u0027:resolve_parent_in_filter/3"
            },
            {
              "name": "\u0027Elixir.Ash.Actions.Read.Relationships\u0027:do_per_record_no_attributes_load/5"
            }
          ],
          "repo": "https://github.com/ash-project/ash",
          "vendor": "ash-project",
          "versions": [
            {
              "lessThan": "3.32.2",
              "status": "affected",
              "version": "3.13.2",
              "versionType": "semver"
            }
          ]
        },
        {
          "collectionURL": "https://github.com",
          "cpes": [
            "cpe:2.3:a:ash-project:ash:*:*:*:*:*:*:*:*"
          ],
          "defaultStatus": "unaffected",
          "modules": [
            "\u0027Elixir.Ash.Actions.Read.Relationships\u0027"
          ],
          "packageName": "ash-project/ash",
          "packageURL": "pkg:github/ash-project/ash",
          "product": "ash",
          "programFiles": [
            "lib/ash/actions/read/relationships.ex"
          ],
          "programRoutines": [
            {
              "name": "\u0027Elixir.Ash.Actions.Read.Relationships\u0027:resolve_parent_in_filter/3"
            },
            {
              "name": "\u0027Elixir.Ash.Actions.Read.Relationships\u0027:do_per_record_no_attributes_load/5"
            }
          ],
          "repo": "https://github.com/ash-project/ash",
          "vendor": "ash-project",
          "versions": [
            {
              "lessThan": "e52dad2c39a35f6f043f7324d26e4f4e2551dfd2",
              "status": "affected",
              "version": "0ddff26e6e6bc6d182e1af2f98b431575e5b4179",
              "versionType": "git"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:ash-project:ash:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "3.32.2",
                  "versionStartIncluding": "3.13.2",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ],
          "operator": "AND"
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "coordinator",
          "value": "Jonatan M\u00e4nnchen / EEF"
        },
        {
          "lang": "en",
          "type": "remediation developer",
          "value": "Zach Daniel / Ash Project"
        },
        {
          "lang": "en",
          "type": "reporter",
          "value": "Peter Ullrich"
        },
        {
          "lang": "en",
          "type": "finder",
          "value": "Peter Ullrich"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eIncorrect Authorization vulnerability in ash-project ash widens a relationship\u0027s \u003ccode\u003eparent(...)\u003c/code\u003e scoping filter to match unintended records when the referenced parent field cannot be resolved.\u003c/p\u003e\n\u003cp\u003eLoading a relationship whose filter references \u003ccode\u003eparent(...)\u003c/code\u003e resolves that expression against the parent record. \u003ccode\u003eresolve_parent_in_filter/3\u003c/code\u003e (\u003ccode\u003elib/ash/actions/read/relationships.ex\u003c/code\u003e) resolved an unresolvable parent reference (for example when the referenced field was not selected on the source query) to \u003ccode\u003enil\u003c/code\u003e rather than failing. A scoping predicate such as \u003ccode\u003eorg_id == parent(org_id)\u003c/code\u003e then becomes an \u003ccode\u003eIS NULL\u003c/code\u003e match, and a guard like \u003ccode\u003eis_nil(parent(org_id)) or org_id == parent(org_id)\u003c/code\u003e activates its unrestricted branch, so the relationship returns records the scope was meant to exclude. The fix fails the read with an error when a \u003ccode\u003eparent(...)\u003c/code\u003e reference cannot be resolved, instead of defaulting to nil.\u003c/p\u003e\n\u003cp\u003eThis issue affects ash: from 3.13.2 before 3.32.2.\u003c/p\u003e"
            },
            {
              "base64": false,
              "type": "text/markdown",
              "value": "Incorrect Authorization vulnerability in ash-project ash widens a relationship\u0027s `parent(...)` scoping filter to match unintended records when the referenced parent field cannot be resolved.\n\nLoading a relationship whose filter references `parent(...)` resolves that expression against the parent record. `resolve_parent_in_filter/3` (`lib/ash/actions/read/relationships.ex`) resolved an unresolvable parent reference (for example when the referenced field was not selected on the source query) to `nil` rather than failing. A scoping predicate such as `org_id == parent(org_id)` then becomes an `IS NULL` match, and a guard like `is_nil(parent(org_id)) or org_id == parent(org_id)` activates its unrestricted branch, so the relationship returns records the scope was meant to exclude. The fix fails the read with an error when a `parent(...)` reference cannot be resolved, instead of defaulting to nil.\n\nThis issue affects ash: from 3.13.2 before 3.32.2."
            }
          ],
          "value": "Incorrect Authorization vulnerability in ash-project ash widens a relationship\u0027s parent(...) scoping filter to match unintended records when the referenced parent field cannot be resolved.\n\nLoading a relationship whose filter references parent(...) resolves that expression against the parent record. resolve_parent_in_filter/3 (lib/ash/actions/read/relationships.ex) resolved an unresolvable parent reference (for example when the referenced field was not selected on the source query) to nil rather than failing. A scoping predicate such as org_id == parent(org_id) then becomes an IS NULL match, and a guard like is_nil(parent(org_id)) or org_id == parent(org_id) activates its unrestricted branch, so the relationship returns records the scope was meant to exclude. The fix fails the read with an error when a parent(...) reference cannot be resolved, instead of defaulting to nil.\n\nThis issue affects ash: from 3.13.2 before 3.32.2."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-1",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-1 Accessing Functionality Not Properly Constrained by ACLs"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "PRESENT",
            "attackVector": "LOCAL",
            "baseScore": 5.9,
            "baseSeverity": "MEDIUM",
            "privilegesRequired": "NONE",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "NONE",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-863",
              "description": "CWE-863 Incorrect Authorization",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-01T03:54:12.716Z",
        "orgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
        "shortName": "EEF"
      },
      "references": [
        {
          "tags": [
            "vendor-advisory",
            "related"
          ],
          "url": "https://github.com/ash-project/ash/security/advisories/GHSA-j8fx-ff37-4j9c"
        },
        {
          "tags": [
            "related"
          ],
          "url": "https://cna.erlef.org/cves/CVE-2026-82749.html"
        },
        {
          "tags": [
            "related"
          ],
          "url": "https://osv.dev/vulnerability/EEF-CVE-2026-82749"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/ash-project/ash/commit/e52dad2c39a35f6f043f7324d26e4f4e2551dfd2"
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "Ash relationship parent(...) filter degrades to an IS NULL match when the parent field is unresolved, leaking scoped records"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
    "assignerShortName": "EEF",
    "cveId": "CVE-2026-82749",
    "datePublished": "2026-09-01T03:54:12.716Z",
    "dateReserved": "2026-08-31T01:00:09.774Z",
    "dateUpdated": "2026-09-01T12:38:27.534Z",
    "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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