Vulnerability-Lookup

GHSA-997V-R4V7-9F3G

Vulnerability from github – Published: 2026-07-13 06:31 – Updated: 2026-09-03 19:19

Summary

PyOD persistence.load deserializes untrusted artifacts before validation

Details

A vulnerability was detected in yzhao062 pyod 3.5.0/3.5.1/3.5.2. Affected is the function pyod.utils.persistence.load of the file pyod/utils/persistence.py. Performing a manipulation of the argument path results in deserialization. The attack can be initiated remotely. The pull request to fix this issue requires some minor changes.

Severity

6.3 (Medium)


                  
                    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

5.3 (Medium)


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

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "pyod"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.5.0"
            },
            {
              "fixed": "3.6.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-15529"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-20",
      "CWE-502"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-09-03T19:19:17Z",
    "nvd_published_at": "2026-07-13T04:16:28Z",
    "severity": "MODERATE"
  },
  "details": "A vulnerability was detected in yzhao062 pyod 3.5.0/3.5.1/3.5.2. Affected is the function pyod.utils.persistence.load of the file pyod/utils/persistence.py. Performing a manipulation of the argument path results in deserialization. The attack can be initiated remotely. The pull request to fix this issue requires some minor changes.",
  "id": "GHSA-997v-r4v7-9f3g",
  "modified": "2026-09-03T19:19:17Z",
  "published": "2026-07-13T06:31:31Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-15529"
    },
    {
      "type": "WEB",
      "url": "https://github.com/yzhao062/pyod/issues/697"
    },
    {
      "type": "WEB",
      "url": "https://github.com/yzhao062/pyod/pull/698"
    },
    {
      "type": "WEB",
      "url": "https://github.com/yzhao062/pyod/commit/16e6e3ad8921a4e18ccc8c2afe474db7d002c001"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/yzhao062/pyod"
    },
    {
      "type": "WEB",
      "url": "https://github.com/yzhao062/pyod/releases/tag/v3.6.2"
    },
    {
      "type": "WEB",
      "url": "https://pypi.org/project/pyod/3.6.2"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/cve/CVE-2026-15529"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/submit/854559"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/vuln/377872"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/vuln/377872/cti"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "PyOD persistence.load deserializes untrusted artifacts before validation"
}

CVE-2026-15529 (GCVE-0-2026-15529)

Vulnerability from cvelistv5 – Published: 2026-07-13 03:45 – Updated: 2026-07-20 06:19

Title

yzhao062 pyod persistence.py pyod.utils.persistence.load deserialization

Summary

A vulnerability was detected in yzhao062 pyod up to 3.6.1. Affected is the function pyod.utils.persistence.load of the file pyod/utils/persistence.py. Performing a manipulation of the argument path results in deserialization. The attack can be initiated remotely. Upgrading to version 3.6.2 is able to address this issue. It is recommended to apply a patch to fix this issue. The pull request to fix this issue requires some minor changes.

Severity

5.3 (Medium)


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

6.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:X/RL:O/RC:C

6.3 (Medium)


                        
                          CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:X/RL:O/RC:C

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-07-14 14:52 UTC

CWE

CWE-502 - Deserialization
CWE-20 - Improper Input Validation

Assigner

VulDB mitre root

References

8 references

URL	Tags
https://vuldb.com/vuln/377872	vdb-entrytechnical-description
https://vuldb.com/vuln/377872/cti	signaturepermissions-required
https://vuldb.com/cve/CVE-2026-15529	third-party-advisory
https://vuldb.com/submit/854559	third-party-advisory
https://github.com/yzhao062/pyod/issues/697	issue-tracking
https://github.com/yzhao062/pyod/pull/698	issue-trackingpatch
https://pypi.org/project/pyod/3.6.2/	patch
https://github.com/yzhao062/pyod/	product

Impacted products

1 product

Vendor	Product	Version
yzhao062	pyod	Affected: 3.5.0 Affected: 3.5.1 Affected: 3.5.2 Affected: 3.5.4 Affected: 3.6.0 Affected: 3.6.1 Unaffected: 3.6.2 cpe:2.3:a:yzhao062:pyod::::::::

Credits

Dem0000000 (VulDB User) yzhao062 (VulDB User) VulDB CNA Team

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-15529",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-07-14T14:52:27.588296Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-07-14T14:53:01.496Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "exploit"
            ],
            "url": "https://github.com/yzhao062/pyod/issues/697"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "cpes": [
            "cpe:2.3:a:yzhao062:pyod:*:*:*:*:*:*:*:*"
          ],
          "product": "pyod",
          "vendor": "yzhao062",
          "versions": [
            {
              "status": "affected",
              "version": "3.5.0"
            },
            {
              "status": "affected",
              "version": "3.5.1"
            },
            {
              "status": "affected",
              "version": "3.5.2"
            },
            {
              "status": "affected",
              "version": "3.5.4"
            },
            {
              "status": "affected",
              "version": "3.6.0"
            },
            {
              "status": "affected",
              "version": "3.6.1"
            },
            {
              "status": "unaffected",
              "version": "3.6.2"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "Dem0000000 (VulDB User)"
        },
        {
          "lang": "en",
          "type": "analyst",
          "value": "yzhao062 (VulDB User)"
        },
        {
          "lang": "en",
          "type": "coordinator",
          "value": "VulDB CNA Team"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability was detected in yzhao062 pyod up to 3.6.1. Affected is the function pyod.utils.persistence.load of the file pyod/utils/persistence.py. Performing a manipulation of the argument path results in deserialization. The attack can be initiated remotely. Upgrading to version 3.6.2 is able to address this issue. It is recommended to apply a patch to fix this issue. The pull request to fix this issue requires some minor changes."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X",
            "version": "4.0"
          }
        },
        {
          "cvssV3_1": {
            "baseScore": 6.3,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:X/RL:O/RC:C",
            "version": "3.1"
          }
        },
        {
          "cvssV3_0": {
            "baseScore": 6.3,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:X/RL:O/RC:C",
            "version": "3.0"
          }
        },
        {
          "cvssV2_0": {
            "baseScore": 6.5,
            "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P/E:ND/RL:OF/RC:C",
            "version": "2.0"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-502",
              "description": "Deserialization",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-20",
              "description": "Improper Input Validation",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-20T06:19:33.417Z",
        "orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
        "shortName": "VulDB"
      },
      "references": [
        {
          "name": "VDB-377872 | yzhao062 pyod persistence.py pyod.utils.persistence.load deserialization",
          "tags": [
            "vdb-entry",
            "technical-description"
          ],
          "url": "https://vuldb.com/vuln/377872"
        },
        {
          "name": "VDB-377872 | CTI Indicators (IOB, IOC, IOA)",
          "tags": [
            "signature",
            "permissions-required"
          ],
          "url": "https://vuldb.com/vuln/377872/cti"
        },
        {
          "name": "CVE-2026-15529 | CVE Analysis and Report",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://vuldb.com/cve/CVE-2026-15529"
        },
        {
          "name": "Submit #854559 | Yue Zhao / yzhao062 pyod 3.5.0 through 3.5.2 CWE-502: Deserialization of Untrusted Data",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://vuldb.com/submit/854559"
        },
        {
          "tags": [
            "issue-tracking"
          ],
          "url": "https://github.com/yzhao062/pyod/issues/697"
        },
        {
          "tags": [
            "issue-tracking",
            "patch"
          ],
          "url": "https://github.com/yzhao062/pyod/pull/698"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://pypi.org/project/pyod/3.6.2/"
        },
        {
          "tags": [
            "product"
          ],
          "url": "https://github.com/yzhao062/pyod/"
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2026-07-12T00:00:00.000Z",
          "value": "Advisory disclosed"
        },
        {
          "lang": "en",
          "time": "2026-07-12T02:00:00.000Z",
          "value": "VulDB entry created"
        },
        {
          "lang": "en",
          "time": "2026-07-20T08:24:22.000Z",
          "value": "VulDB entry last update"
        }
      ],
      "title": "yzhao062 pyod persistence.py pyod.utils.persistence.load deserialization"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
    "assignerShortName": "VulDB",
    "cveId": "CVE-2026-15529",
    "datePublished": "2026-07-13T03:45:08.697Z",
    "dateReserved": "2026-07-12T15:47:24.318Z",
    "dateUpdated": "2026-07-20T06:19:33.417Z",
    "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.

Detection rules are retrieved from Rulezet.

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.

Action not permitted

GHSA-997V-R4V7-9F3G

CVE-2026-15529 (GCVE-0-2026-15529)

Tags

Sightings

Nomenclature