Vulnerability-Lookup

GHSA-RRH3-CWWJ-G5MG

Vulnerability from github – Published: 2026-07-15 15:33 – Updated: 2026-07-15 15:33

Details

Cornac before 2.6.0 contains a path traversal (Tar Slip) vulnerability that allows attackers to write arbitrary files outside the intended cache directory by supplying a crafted TAR archive containing ../ sequences, absolute paths, or symlink/hardlink entries to the _extract_archive() function in cornac/utils/download.py. Attackers can trigger this vulnerability through the built-in dataset loaders, which automatically download and extract archives, causing archive.extractall() to write files to arbitrary locations on the filesystem accessible to the running process.

Severity

9.1 (Critical)


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

8.8 (High)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2026-43637"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-22"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-15T14:18:10Z",
    "severity": "HIGH"
  },
  "details": "Cornac before 2.6.0 contains a path traversal (Tar Slip) vulnerability that allows attackers to write arbitrary files outside the intended cache directory by supplying a crafted TAR archive containing ../ sequences, absolute paths, or symlink/hardlink entries to the _extract_archive() function in cornac/utils/download.py. Attackers can trigger this vulnerability through the built-in dataset loaders, which automatically download and extract archives, causing archive.extractall() to write files to arbitrary locations on the filesystem accessible to the running process.",
  "id": "GHSA-rrh3-cwwj-g5mg",
  "modified": "2026-07-15T15:33:06Z",
  "published": "2026-07-15T15:33:06Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-43637"
    },
    {
      "type": "WEB",
      "url": "https://github.com/PreferredAI/cornac/pull/709"
    },
    {
      "type": "WEB",
      "url": "https://github.com/PreferredAI/cornac/commit/8a50be72c11569b6747c6b96d6e31a0a1962f1a8"
    },
    {
      "type": "WEB",
      "url": "https://github.com/PreferredAI/cornac/releases/tag/v2.6.0"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/cornac-path-traversal-via-extract-archive-in-download-py"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/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",
      "type": "CVSS_V4"
    }
  ]
}

CVE-2026-43637 (GCVE-0-2026-43637)

Vulnerability from cvelistv5 – Published: 2026-07-15 13:54 – Updated: 2026-07-15 14:41 X_Open Source

Title

Cornac < 2.6.0 Path Traversal via _extract_archive() in download.py

Summary

Severity

8.8 (High)


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

9.1 (Critical)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-07-15 14:41 UTC

CWE

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

Assigner

VulnCheck mitre root Scorecard

References

4 references

URL	Tags
https://github.com/PreferredAI/cornac/releases/ta…	release-notes
https://github.com/PreferredAI/cornac/pull/709	issue-tracking
https://github.com/PreferredAI/cornac/commit/8a50…	patch
https://www.vulncheck.com/advisories/cornac-path-…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
PreferredAI	cornac	Affected: 0 , < 2.6.0 (semver)

Date Public

2026-07-11 00:00

Credits

Rahul Karne Bharath Kumar Reddy Janumpally VulnCheck

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-43637",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-07-15T14:41:25.064320Z",
                "version": "2.0.3"
              },
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        "providerMetadata": {
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
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    ],
    "cna": {
      "affected": [
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          "defaultStatus": "affected",
          "product": "cornac",
          "repo": "https://github.com/PreferredAI/cornac",
          "vendor": "PreferredAI",
          "versions": [
            {
              "lessThan": "2.6.0",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
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          "lang": "en",
          "type": "finder",
          "value": "Rahul Karne"
        },
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      "descriptions": [
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        }
      ],
      "metrics": [
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            "baseSeverity": "HIGH",
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            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
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            "vulnIntegrityImpact": "HIGH",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
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          "scenarios": [
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      "providerMetadata": {
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          "url": "https://github.com/PreferredAI/cornac/releases/tag/v2.6.0"
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    "datePublished": "2026-07-15T13:54:38.892Z",
    "dateReserved": "2026-05-01T18:22:45.642Z",
    "dateUpdated": "2026-07-15T14:41:32.022Z",
    "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.

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.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

GHSA-RRH3-CWWJ-G5MG

CVE-2026-43637 (GCVE-0-2026-43637)

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