Vulnerability-Lookup

CVE-2026-53584 (GCVE-0-2026-53584)

Vulnerability from cvelistv5 – Published: 2026-08-20 18:35 – Updated: 2026-08-20 19:48

Title

libgit2: Submodule path traversal

Summary

libgit2 is a portable C implementation of the Git core methods provided as a linkable library with a solid API, allowing to build Git functionality into your application. Prior to 1.8.6 and 1.9.5, libgit2 does not reject traversal components in a submodule path loaded from .gitmodules. The affected src/libgit2/submodule.c paths include git_submodule_lookup and git_submodule_add_setup. A crafted repository can specify a path such as ../escape-target, and applications that initialize the submodule can create directories outside the repository working tree. This issue is fixed in versions 1.8.6 and 1.9.5.

Severity

4.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/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 2026-08-20 19:48 UTC

CWE

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

Assigner

GitHub_M mitre root Scorecard

References

6 references

URL	Tags
https://github.com/libgit2/libgit2/security/advis…	x_refsource_CONFIRM
https://github.com/libgit2/libgit2/commit/419637d…	x_refsource_MISC
https://github.com/libgit2/libgit2/commit/467c2d9…	x_refsource_MISC
https://github.com/libgit2/libgit2/commit/ec7371d…	x_refsource_MISC
https://github.com/libgit2/libgit2/releases/tag/v1.8.6	x_refsource_MISC
https://github.com/libgit2/libgit2/releases/tag/v1.9.5	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
libgit2	libgit2	Affected: < 1.8.6 Affected: >= 1.9.0, < 1.9.5

Show details on NVD website

JSON

To clipboard

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}

BELL-CVE-2026-53584 (CVE-2026-53584)

Vulnerability from osv_bellsoft – Published: 2026-07-23 10:20 – Updated: 2026-07-23 23:19 – Source website

Severity

4.3 (Medium)


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

References

URL

Type

https://docs.bell-sw.com/security/cves/CVE-2026-53584

ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "Alpaquita:25",
        "name": "libgit2",
        "purl": "pkg:apk/alpaquita/libgit2?arch=source\u0026distro=25"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "1.9.0-r2"
            },
            {
              "fixed": "1.9.6-r0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Alpaquita:stream",
        "name": "libgit2",
        "purl": "pkg:apk/alpaquita/libgit2?arch=source\u0026distro=stream"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "1.7.1-r0"
            },
            {
              "fixed": "1.9.6-r0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "id": "BELL-CVE-2026-53584",
  "modified": "2026-07-23T23:19:34.203637Z",
  "published": "2026-07-23T10:20:03.796200Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://docs.bell-sw.com/security/cves/CVE-2026-53584"
    }
  ],
  "schema_version": "1.7.4",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "upstream": [
    "CVE-2026-53584"
  ]
}

EUVD-2026-357059

European Vulnerability Database identifier assigned by ENISA

Reserved

2026-10-02 08:28

Assigner

ENISA

Alias of

a CVE record, shown under related vulnerabilities. This identifier carries no description, severity or references of its own: they belong to that CVE.

JSON

To clipboard

{
  "assigner": "ENISA",
  "date_reserved": "2026-10-02T08:28:51.681464+00:00",
  "id": "EUVD-2026-357059"
}

FKIE_CVE-2026-53584

Vulnerability from fkie_nvd - Published: 2026-08-20 19:16 - Updated: 2026-09-09 21:19

Severity

4.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

Summary

References

	URL	Tags
	security-advisories@github.com	https://github.com/libgit2/libgit2/commit/419637d3587396f5d139d6d88480eab3cd81e7a1
	security-advisories@github.com	https://github.com/libgit2/libgit2/commit/467c2d95ed663df722f83a5960edf568514b128c
	security-advisories@github.com	https://github.com/libgit2/libgit2/commit/ec7371da9f359cd8293e9108e7a0b1c1b61b67c4
	security-advisories@github.com	https://github.com/libgit2/libgit2/releases/tag/v1.8.6
	security-advisories@github.com	https://github.com/libgit2/libgit2/releases/tag/v1.9.5
	security-advisories@github.com	https://github.com/libgit2/libgit2/security/advisories/GHSA-cw77-j82w-mchm

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "libgit2",
          "vendor": "libgit2",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 1.8.6"
            },
            {
              "status": "affected",
              "version": "\u003e= 1.9.0, \u003c 1.9.5"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "libgit2 is a portable C implementation of the Git core methods provided as a linkable library with a solid API, allowing to build Git functionality into your application. Prior to 1.8.6 and 1.9.5, libgit2 does not reject traversal components in a submodule path loaded from .gitmodules. The affected src/libgit2/submodule.c paths include git_submodule_lookup and git_submodule_add_setup. A crafted repository can specify a path such as ../escape-target, and applications that initialize the submodule can create directories outside the repository working tree. This issue is fixed in versions 1.8.6 and 1.9.5."
    }
  ],
  "id": "CVE-2026-53584",
  "lastModified": "2026-09-09T21:19:49.197",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 4.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 1.4,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-53584",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-08-20T19:48:09.838175Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-08-20T19:16:54.680",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/libgit2/libgit2/commit/419637d3587396f5d139d6d88480eab3cd81e7a1"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/libgit2/libgit2/commit/467c2d95ed663df722f83a5960edf568514b128c"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/libgit2/libgit2/commit/ec7371da9f359cd8293e9108e7a0b1c1b61b67c4"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/libgit2/libgit2/releases/tag/v1.8.6"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/libgit2/libgit2/releases/tag/v1.9.5"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/libgit2/libgit2/security/advisories/GHSA-cw77-j82w-mchm"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-22"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}

MSRC_CVE-2026-53584

Vulnerability from csaf_microsoft - Published: 2026-08-22 01:04 - Updated: 2026-08-25 01:07

Summary

libgit2: Submodule path traversal

Scope

1 vulnerability in this advisory, including CVE-2026-53584.

CVE-2026-53584

4.3 (Medium)


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

Known affected: 3 products

Open the full advisory

OPENSUSE-SU-2026:11315-1

Vulnerability from csaf_opensuse - Published: 2026-07-20 00:00 - Updated: 2026-09-17 17:15

Summary

libgit2-1_9-1.9.6-1.1 on GA media

Severity

Moderate

Scope

5 vulnerabilities in this advisory, including CVE-2026-53584.

CVE-2026-53584

7.4 (High)


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

Recommended: 12 products

Open the full advisory

RHSA-2026:59361

Vulnerability from csaf_redhat - Published: 2026-08-25 09:07 - Updated: 2026-09-21 07:14

Summary

Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

Severity

Important

Scope

5 vulnerabilities in this advisory, including CVE-2026-53584.

CVE-2026-53584

A flaw was found in libgit2. This vulnerability allows a remote attacker to create directories outside of the intended repository working tree. By crafting a malicious repository that specifies traversal components in a submodule path, applications initializing the submodule can be tricked into creating directories in arbitrary locations on the file system. This could lead to unintended file system modifications or potentially further compromise.

3.5 (Low)


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

Fixed: 3 products

https://access.redhat.com/errata/RHSA-2026:59361

Open the full advisory

UBUNTU-CVE-2026-53584 (CVE-2026-53584)

Vulnerability from osv_ubuntu – Published: 2026-07-31 00:00 – Updated: 2026-09-23 23:31 – Source website

Details

Severity

4.3 (Medium)


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

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2026-53584	REPORT
	https://www.cve.org/CVERecord?id=CVE-2026-53584	REPORT
	https://github.com/libgit2/libgit2/security/advis…	REPORT
	https://ubuntu.com/security/notices/USN-8628-1	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libgit2-0",
            "binary_version": "0.19.0-2ubuntu0.4+esm2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:14.04:LTS",
        "name": "libgit2",
        "purl": "pkg:deb/ubuntu/libgit2@0.19.0-2ubuntu0.4+esm2?arch=source\u0026distro=esm-infra-legacy/trusty"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.19.0-2",
        "0.19.0-2ubuntu0.4",
        "0.19.0-2ubuntu0.4+esm1",
        "0.19.0-2ubuntu0.4+esm2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libgit2-24",
            "binary_version": "0.24.1-2ubuntu0.2+esm4"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:16.04:LTS",
        "name": "libgit2",
        "purl": "pkg:deb/ubuntu/libgit2@0.24.1-2ubuntu0.2+esm4?arch=source\u0026distro=esm-apps-legacy/xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.22.2-2",
        "0.23.1-1",
        "0.24.1-2",
        "0.24.1-2ubuntu0.2",
        "0.24.1-2ubuntu0.2+esm1",
        "0.24.1-2ubuntu0.2+esm2",
        "0.24.1-2ubuntu0.2+esm3",
        "0.24.1-2ubuntu0.2+esm4"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libgit2-26",
            "binary_version": "0.26.0+dfsg.1-1.1ubuntu0.2+esm3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:18.04:LTS",
        "name": "libgit2",
        "purl": "pkg:deb/ubuntu/libgit2@0.26.0+dfsg.1-1.1ubuntu0.2+esm3?arch=source\u0026distro=esm-apps/bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.25.1+really0.24.6-1",
        "0.26.0+dfsg.1-1.1",
        "0.26.0+dfsg.1-1.1build1",
        "0.26.0+dfsg.1-1.1ubuntu0.2",
        "0.26.0+dfsg.1-1.1ubuntu0.2+esm1",
        "0.26.0+dfsg.1-1.1ubuntu0.2+esm2",
        "0.26.0+dfsg.1-1.1ubuntu0.2+esm3"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "libgit2-28",
            "binary_version": "0.28.4+dfsg.1-2ubuntu0.1+esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:20.04:LTS",
        "name": "libgit2",
        "purl": "pkg:deb/ubuntu/libgit2@0.28.4+dfsg.1-2ubuntu0.1+esm1?arch=source\u0026distro=esm-apps/focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.28.4+dfsg.1-2ubuntu0.1+esm1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.27.7+dfsg.1-0.2build1",
        "0.28.3+dfsg.1-1",
        "0.28.3+dfsg.1-1ubuntu1",
        "0.28.4+dfsg.1-2",
        "0.28.4+dfsg.1-2ubuntu0.1"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "libgit2-1.1",
            "binary_version": "1.1.0+dfsg.1-4.1ubuntu0.1+esm1"
          },
          {
            "binary_name": "libgit2-fixtures",
            "binary_version": "1.1.0+dfsg.1-4.1ubuntu0.1+esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:22.04:LTS",
        "name": "libgit2",
        "purl": "pkg:deb/ubuntu/libgit2@1.1.0+dfsg.1-4.1ubuntu0.1+esm1?arch=source\u0026distro=esm-apps/jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.1.0+dfsg.1-4.1ubuntu0.1+esm1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.1.0+dfsg.1-4",
        "1.1.0+dfsg.1-4.1",
        "1.1.0+dfsg.1-4.1build1",
        "1.1.0+dfsg.1-4.1ubuntu0.1"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libgit2-1.7",
            "binary_version": "1.7.2+ds-1ubuntu3.1"
          },
          {
            "binary_name": "libgit2-fixtures",
            "binary_version": "1.7.2+ds-1ubuntu3.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "libgit2",
        "purl": "pkg:deb/ubuntu/libgit2@1.7.2+ds-1ubuntu3.1?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.7.2+ds-1ubuntu3.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.5.1+ds-1ubuntu1",
        "1.7.1+ds-2ubuntu1",
        "1.7.2+ds-1ubuntu1",
        "1.7.2+ds-1ubuntu2",
        "1.7.2+ds-1ubuntu3"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libgit2-1.9",
            "binary_version": "1.9.1+ds-1ubuntu1.1"
          },
          {
            "binary_name": "libgit2-fixtures",
            "binary_version": "1.9.1+ds-1ubuntu1.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "libgit2",
        "purl": "pkg:deb/ubuntu/libgit2@1.9.1+ds-1ubuntu1.1?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.9.1+ds-1ubuntu1.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.9.0+ds-2ubuntu2",
        "1.9.1+ds-1ubuntu1"
      ]
    }
  ],
  "aliases": [],
  "details": "libgit2 is a portable C implementation of the Git core methods provided as a linkable library with a solid API, allowing to build Git functionality into your application. Prior to 1.8.6 and 1.9.5, libgit2 does not reject traversal components in a submodule path loaded from .gitmodules. The affected src/libgit2/submodule.c paths include git_submodule_lookup and git_submodule_add_setup. A crafted repository can specify a path such as ../escape-target, and applications that initialize the submodule can create directories outside the repository working tree. This issue is fixed in versions 1.8.6 and 1.9.5.",
  "id": "UBUNTU-CVE-2026-53584",
  "modified": "2026-09-23T23:31:21Z",
  "published": "2026-07-31T00:00:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-53584"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-53584"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/libgit2/libgit2/security/advisories/GHSA-cw77-j82w-mchm"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-8628-1"
    }
  ],
  "related": [
    "USN-8628-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2026-53584"
  ]
}

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

CVE-2026-53584 (GCVE-0-2026-53584)

BELL-CVE-2026-53584 (CVE-2026-53584)

EUVD-2026-357059

FKIE_CVE-2026-53584

MSRC_CVE-2026-53584

OPENSUSE-SU-2026:11315-1

RHSA-2026:59361

UBUNTU-CVE-2026-53584 (CVE-2026-53584)

Tags

Sightings

Nomenclature

Related by attack behaviour