Vulnerability-Lookup

BELL-CVE-2026-17106 (CVE-2026-17106)

Vulnerability from osv_bellsoft – Published: 2026-08-20 06:06 – Updated: 2026-09-08 12:13 – Source website

References

URL

Type

https://docs.bell-sw.com/security/cves/CVE-2026-17106

ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "Alpaquita:23",
        "name": "podman",
        "purl": "pkg:apk/alpaquita/podman?arch=source\u0026distro=23"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.3.1-r0"
            },
            {
              "fixed": "5.6.2-r13"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Alpaquita:25",
        "name": "buildah",
        "purl": "pkg:apk/alpaquita/buildah?arch=source\u0026distro=25"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "1.40.0-r0"
            },
            {
              "fixed": "1.41.8-r8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Alpaquita:25",
        "name": "docker-cli-buildx",
        "purl": "pkg:apk/alpaquita/docker-cli-buildx?arch=source\u0026distro=25"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.24.0-r0"
            },
            {
              "fixed": "0.24.0-r15"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Alpaquita:25",
        "name": "podman",
        "purl": "pkg:apk/alpaquita/podman?arch=source\u0026distro=25"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.5.0-r0"
            },
            {
              "fixed": "5.6.2-r13"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Alpaquita:stream",
        "name": "buildah",
        "purl": "pkg:apk/alpaquita/buildah?arch=source\u0026distro=stream"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "1.31.0-r0"
            },
            {
              "fixed": "1.44.0-r6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Alpaquita:stream",
        "name": "docker-cli-buildx",
        "purl": "pkg:apk/alpaquita/docker-cli-buildx?arch=source\u0026distro=stream"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.11.0-r0"
            },
            {
              "fixed": "0.36.1-r3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Alpaquita:stream",
        "name": "podman",
        "purl": "pkg:apk/alpaquita/podman?arch=source\u0026distro=stream"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.5.1-r1"
            },
            {
              "fixed": "5.8.6-r3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "id": "BELL-CVE-2026-17106",
  "modified": "2026-09-08T12:13:40.560079Z",
  "published": "2026-08-20T06:06:25.253409Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://docs.bell-sw.com/security/cves/CVE-2026-17106"
    }
  ],
  "schema_version": "1.7.4",
  "upstream": [
    "CVE-2026-17106"
  ]
}

CVE-2026-17106 (GCVE-0-2026-17106)

Vulnerability from cvelistv5 – Published: 2026-08-18 18:35 – Updated: 2026-08-19 03:56

Title

Tar extraction in moby/go-archive can write outside the destination directory via link following

Summary

The tar extraction routines in moby/go-archive (Unpack, UnpackLayer, Untar/UntarUncompressed, and the ApplyLayer helpers) do not confine filesystem operations to the destination directory. The extractor decides where each archive entry lands using lexical string checks and then performs the filesystem operation on a path that is resolved by the OS, so links introduced by the archive can be followed out of the destination directory. An attacker who controls the contents of an archive can create or overwrite files at arbitrary paths writable by the extracting process.

Severity

7.1 (High)


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

SSVC

Exploitation: poc Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-18 00:00 UTC

CWE

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

Assigner

Docker mitre root

References

8 references

URL	Tags
https://github.com/moby/go-archive/security/advis…	vendor-advisory
https://docs.docker.com/desktop/release-notes/#4860	release-notes
https://github.com/docker/sbx-releases/releases/t…	release-notes
https://docs.docker.com/engine/release-notes/29/#2970	release-notes
https://github.com/docker/cli/releases/tag/v29.7.0	release-notes
https://github.com/docker/compose/releases/tag/v5.4.0	release-notes
https://github.com/moby/go-archive/releases/tag/v0.3.0	patch
https://github.com/masasron/CopyEscape-CVE-2026-17106	exploit

Impacted products

6 products

Vendor	Product	Version
moby	go-archive	Affected: 0 , < 0.3.0 (semver)
Docker	Docker Sandboxes	Affected: 0 , < 0.38.0 (semver) cpe:2.3:a:docker:docker_sandboxes::::::::
Docker	Docker Desktop	Affected: 0 , < 4.86.0 (semver) cpe:2.3:a:docker:desktop::::::::
Docker	Docker Engine	Affected: 0 , < 29.7.0 (semver)
Docker	Docker CLI	Affected: 0 , < 29.7.0 (semver)
Docker	Docker Compose	Affected: 0 , < 5.4.0 (semver)

Credits

Ron Masas (Imperva) and other independent reports

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-17106",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-18T00:00:00+00:00",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-08-19T03:56:16.526Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "exploit"
            ],
            "url": "https://github.com/masasron/CopyEscape-CVE-2026-17106"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
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          "packageName": "github.com/moby/go-archive",
          "product": "go-archive",
          "vendor": "moby",
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              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        },
        {
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          ],
          "defaultStatus": "unaffected",
          "platforms": [
            "MacOS",
            "Linux",
            "Windows"
          ],
          "product": "Docker Sandboxes",
          "vendor": "Docker",
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            {
              "lessThan": "0.38.0",
              "status": "affected",
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              "versionType": "semver"
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        {
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          ],
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            "Windows"
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          "type": "finder",
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              "type": "text/html",
              "value": "The tar extraction routines in moby/go-archive (Unpack, UnpackLayer, Untar/UntarUncompressed, and the ApplyLayer helpers) do not confine filesystem operations to the destination directory. The extractor decides where each archive entry lands using lexical string checks and then performs the filesystem operation on a path that is resolved by the OS, so links introduced by the archive can be followed out of the destination directory. An attacker who controls the contents of an archive can create or overwrite files at arbitrary paths writable by the extracting process."
            }
          ],
          "value": "The tar extraction routines in moby/go-archive (Unpack, UnpackLayer, Untar/UntarUncompressed, and the ApplyLayer helpers) do not confine filesystem operations to the destination directory. The extractor decides where each archive entry lands using lexical string checks and then performs the filesystem operation on a path that is resolved by the OS, so links introduced by the archive can be followed out of the destination directory. An attacker who controls the contents of an archive can create or overwrite files at arbitrary paths writable by the extracting process."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
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            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "PRESENT",
            "attackVector": "LOCAL",
            "baseScore": 7.1,
            "baseSeverity": "HIGH",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "NONE",
            "providerUrgency": "NOT_DEFINED",
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            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
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            "valueDensity": "NOT_DEFINED",
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        },
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    "datePublished": "2026-08-18T18:35:13.465Z",
    "dateReserved": "2026-07-24T15:24:25.317Z",
    "dateUpdated": "2026-08-19T03:56:16.526Z",
    "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.

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BELL-CVE-2026-17106 (CVE-2026-17106)

CVE-2026-17106 (GCVE-0-2026-17106)

Tags

Sightings

Nomenclature

Related by attack behaviour