Vulnerability-Lookup

PYSEC-2026-2394

Vulnerability from pysec - Published: 2026-07-13 15:46 - Updated: 2026-07-13 16:03

Details

The github_workflows module constructs local directory paths from user-controlled repository names without validating for symlinks. A local attacker sharing the scan directory can plant a symlink at the predictable output path, causing workflow data to be written to an attacker-chosen location.

Severity

2.2 (Low)


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

Impacted products

Name	purl
bbot	pkg:pypi/bbot

Aliases

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "bbot",
        "purl": "pkg:pypi/bbot"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.0.0"
            },
            {
              "fixed": "2.8.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.0.0",
        "2.0.0.4250rc0",
        "2.0.0.4372rc0",
        "2.0.0.4378rc0",
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      ]
    }
  ],
  "aliases": [
    "CVE-2026-12567",
    "GHSA-rvp7-w75q-9fv2"
  ],
  "details": "The `github_workflows` module constructs local directory paths from user-controlled repository names without validating for symlinks. A local attacker sharing the scan directory can plant a symlink at the predictable output path, causing workflow data to be written to an attacker-chosen location.",
  "id": "PYSEC-2026-2394",
  "modified": "2026-07-13T16:03:36.263636Z",
  "published": "2026-07-13T15:46:20.790276Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/blacklanternsecurity/bbot/security/advisories/GHSA-rvp7-w75q-9fv2"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-12567"
    },
    {
      "type": "WEB",
      "url": "https://github.com/blacklanternsecurity/bbot/commit/16d9c42b6"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/blacklanternsecurity/bbot"
    },
    {
      "type": "PACKAGE",
      "url": "https://pypi.org/project/bbot"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-rvp7-w75q-9fv2"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "BBOT: Symlink-Following Arbitrary Write via github_workflows Module"
}

BREW-BBOT-CVE-2026-12567 (CVE-2026-12567)

Vulnerability from osv_homebrew – Published: 2026-08-13 16:37 – Updated: 2026-09-09 23:43 – Source website

Details

The github_workflows module constructs local directory paths from user-controlled repository names without validating for symlinks. A local attacker sharing the scan directory can plant a symlink at the predictable output path, causing workflow data to be written to an attacker-chosen location.

Severity

2.2 (Low)


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

References

URL

Type

https://github.com/blacklanternsecurity/bbot/comm…

FIX

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "fix": "bump",
        "range_state": "fixed",
        "upstream_fixed_in": "2.8.5"
      },
      "package": {
        "ecosystem": "Homebrew",
        "name": "bbot",
        "purl": "pkg:brew/bbot"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.0.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "confidence": "high",
    "source": "matched",
    "strategy": "git",
    "upstream_evidence": [
      {
        "ecosystem": "GIT",
        "key": "https://github.com/blacklanternsecurity/bbot",
        "name": "https://github.com/blacklanternsecurity/bbot",
        "strategy": "git",
        "subject_version": "3.0.2"
      },
      {
        "ecosystem": "PyPI",
        "key": "pkg:pypi/bbot@3.0.2",
        "name": "bbot",
        "strategy": "registry",
        "subject_version": "3.0.2"
      }
    ]
  },
  "details": "The github_workflows module constructs local directory paths from user-controlled repository names without validating for symlinks. A local attacker sharing the scan directory can plant a symlink at the predictable output path, causing workflow data to be written to an attacker-chosen location.",
  "id": "BREW-bbot-CVE-2026-12567",
  "modified": "2026-09-09T23:43:32Z",
  "published": "2026-08-13T16:37:10Z",
  "references": [
    {
      "type": "FIX",
      "url": "https://github.com/blacklanternsecurity/bbot/commit/16d9c42b6"
    }
  ],
  "schema_version": "1.7.3",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "upstream": [
    "CVE-2026-12567",
    "GHSA-rvp7-w75q-9fv2",
    "PYSEC-2026-2394"
  ]
}

CVE-2026-12567 (GCVE-0-2026-12567)

Vulnerability from cvelistv5 – Published: 2026-06-17 21:51 – Updated: 2026-06-18 12:50

Title

Symlink-following arbitrary write via github_workflows module

Summary

Severity

2.2 (Low)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-06-18 12:50 UTC

CWE

CWE-59 - Improper Link Resolution Before File Access ('Link Following')

Assigner

BLSOPS mitre root

References

1 reference

URL	Tags
https://github.com/blacklanternsecurity/bbot/comm…

Impacted products

1 product

Vendor	Product	Version
Black Lantern Security	BBOT	Affected: 2.0.0 , ≤ <=2.8.4 (custom)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-12567",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-06-18T12:50:06.432373Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
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        "title": "CISA ADP Vulnrichment"
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    ],
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          "defaultStatus": "unaffected",
          "product": "BBOT",
          "repo": "https://github.com/blacklanternsecurity/bbot",
          "vendor": "Black Lantern Security",
          "versions": [
            {
              "lessThanOrEqual": "\u003c=2.8.4",
              "status": "affected",
              "version": "2.0.0",
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          ]
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      "descriptions": [
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            {
              "base64": false,
              "type": "text/html",
              "value": "The github_workflows module constructs local directory paths from user-controlled repository names without validating for symlinks. A local attacker sharing the scan directory can plant a symlink at the predictable output path, causing workflow data to be written to an attacker-chosen location."
            }
          ],
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          "capecId": "CAPEC-132",
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              "lang": "en",
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      "metrics": [
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          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "LOCAL",
            "availabilityImpact": "NONE",
            "baseScore": 2.2,
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            "confidentialityImpact": "NONE",
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          "descriptions": [
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              "cweId": "CWE-59",
              "description": "CWE-59 Improper Link Resolution Before File Access (\u0027Link Following\u0027)",
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              "type": "CWE"
            }
          ]
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      "references": [
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          "url": "https://github.com/blacklanternsecurity/bbot/commit/16d9c42b6"
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      "title": "Symlink-following arbitrary write via github_workflows module",
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    "assignerShortName": "BLSOPS",
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    "datePublished": "2026-06-17T21:51:35.593Z",
    "dateReserved": "2026-06-17T21:49:05.331Z",
    "dateUpdated": "2026-06-18T12:50:13.202Z",
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GHSA-RVP7-W75Q-9FV2

Vulnerability from github – Published: 2026-06-18 15:04 – Updated: 2026-06-18 15:04

Summary

BBOT: Symlink-Following Arbitrary Write via github_workflows Module

Details

Severity

2.2 (Low)


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

Show details on source website

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{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 2.8.4"
      },
      "package": {
        "ecosystem": "PyPI",
        "name": "bbot"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.0.0"
            },
            {
              "fixed": "2.8.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-12567"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-22",
      "CWE-59"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-06-18T15:04:00Z",
    "nvd_published_at": "2026-06-17T23:17:03Z",
    "severity": "LOW"
  },
  "details": "The `github_workflows` module constructs local directory paths from user-controlled repository names without validating for symlinks. A local attacker sharing the scan directory can plant a symlink at the predictable output path, causing workflow data to be written to an attacker-chosen location.",
  "id": "GHSA-rvp7-w75q-9fv2",
  "modified": "2026-06-18T15:04:00Z",
  "published": "2026-06-18T15:04:00Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/blacklanternsecurity/bbot/security/advisories/GHSA-rvp7-w75q-9fv2"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-12567"
    },
    {
      "type": "WEB",
      "url": "https://github.com/blacklanternsecurity/bbot/commit/16d9c42b6"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/blacklanternsecurity/bbot"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "BBOT: Symlink-Following Arbitrary Write via github_workflows Module"
}

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.

Related by attack behaviour

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

PYSEC-2026-2394

BREW-BBOT-CVE-2026-12567 (CVE-2026-12567)

CVE-2026-12567 (GCVE-0-2026-12567)

GHSA-RVP7-W75Q-9FV2

Tags

Sightings

Nomenclature

Related by attack behaviour