Vulnerability-Lookup

oesa-2026-1544

Vulnerability from osv_openeuler

Published

2026-03-15 11:10

Modified

2026-08-06 11:10

Summary

busybox security update

Details

The Swiss Army Knife of Embedded Linux

Security Fix(es):

A flaw was found in BusyBox. Incomplete path sanitization in its archive extraction utilities allows an attacker to craft malicious archives that when extracted, and under specific conditions, may write to files outside the intended directory. This can lead to arbitrary file overwrite, potentially enabling code execution through the modification of sensitive system files.(CVE-2026-26157)

A flaw was found in BusyBox. This vulnerability allows an attacker to modify files outside of the intended extraction directory by crafting a malicious tar archive containing unvalidated hardlink or symlink entries. If the tar archive is extracted with elevated privileges, this flaw can lead to privilege escalation, enabling an attacker to gain unauthorized access to critical system files.(CVE-2026-26158)

Severity

7.0 (High)


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

References

URL

Type

	https://www.openeuler.org/zh/security/security-bu…	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-26157	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-26158	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "aarch64": [
          "busybox-1.31.1-28.oe2003sp4.aarch64.rpm",
          "busybox-debuginfo-1.31.1-28.oe2003sp4.aarch64.rpm",
          "busybox-debugsource-1.31.1-28.oe2003sp4.aarch64.rpm",
          "busybox-help-1.31.1-28.oe2003sp4.aarch64.rpm",
          "busybox-petitboot-1.31.1-28.oe2003sp4.aarch64.rpm"
        ],
        "src": [
          "busybox-1.31.1-28.oe2003sp4.src.rpm"
        ],
        "x86_64": [
          "busybox-1.31.1-28.oe2003sp4.x86_64.rpm",
          "busybox-debuginfo-1.31.1-28.oe2003sp4.x86_64.rpm",
          "busybox-debugsource-1.31.1-28.oe2003sp4.x86_64.rpm",
          "busybox-help-1.31.1-28.oe2003sp4.x86_64.rpm",
          "busybox-petitboot-1.31.1-28.oe2003sp4.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:20.03-LTS-SP4",
        "name": "busybox",
        "purl": "pkg:rpm/openEuler/busybox\u0026distro=openEuler-20.03-LTS-SP4"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.31.1-28.oe2003sp4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "aarch64": [
          "busybox-1.34.1-28.oe2203sp4.aarch64.rpm",
          "busybox-debuginfo-1.34.1-28.oe2203sp4.aarch64.rpm",
          "busybox-debugsource-1.34.1-28.oe2203sp4.aarch64.rpm",
          "busybox-help-1.34.1-28.oe2203sp4.aarch64.rpm",
          "busybox-petitboot-1.34.1-28.oe2203sp4.aarch64.rpm"
        ],
        "src": [
          "busybox-1.34.1-28.oe2203sp4.src.rpm"
        ],
        "x86_64": [
          "busybox-1.34.1-28.oe2203sp4.x86_64.rpm",
          "busybox-debuginfo-1.34.1-28.oe2203sp4.x86_64.rpm",
          "busybox-debugsource-1.34.1-28.oe2203sp4.x86_64.rpm",
          "busybox-help-1.34.1-28.oe2203sp4.x86_64.rpm",
          "busybox-petitboot-1.34.1-28.oe2203sp4.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:22.03-LTS-SP4",
        "name": "busybox",
        "purl": "pkg:rpm/openEuler/busybox\u0026distro=openEuler-22.03-LTS-SP4"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.34.1-28.oe2203sp4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
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          "busybox-debuginfo-1.36.1-14.oe2403.aarch64.rpm",
          "busybox-debugsource-1.36.1-14.oe2403.aarch64.rpm",
          "busybox-petitboot-1.36.1-14.oe2403.aarch64.rpm",
          "busybox-1.36.1-14.oe2403sp1.aarch64.rpm",
          "busybox-debuginfo-1.36.1-14.oe2403sp1.aarch64.rpm",
          "busybox-debugsource-1.36.1-14.oe2403sp1.aarch64.rpm",
          "busybox-petitboot-1.36.1-14.oe2403sp1.aarch64.rpm",
          "busybox-1.36.1-14.oe2403sp2.aarch64.rpm",
          "busybox-debuginfo-1.36.1-14.oe2403sp2.aarch64.rpm",
          "busybox-debugsource-1.36.1-14.oe2403sp2.aarch64.rpm",
          "busybox-petitboot-1.36.1-14.oe2403sp2.aarch64.rpm",
          "busybox-1.36.1-14.oe2403sp3.aarch64.rpm",
          "busybox-debuginfo-1.36.1-14.oe2403sp3.aarch64.rpm",
          "busybox-debugsource-1.36.1-14.oe2403sp3.aarch64.rpm",
          "busybox-petitboot-1.36.1-14.oe2403sp3.aarch64.rpm"
        ],
        "noarch": [
          "busybox-help-1.36.1-14.oe2403.noarch.rpm",
          "busybox-help-1.36.1-14.oe2403sp1.noarch.rpm",
          "busybox-help-1.36.1-14.oe2403sp2.noarch.rpm",
          "busybox-help-1.36.1-14.oe2403sp3.noarch.rpm"
        ],
        "src": [
          "busybox-1.36.1-14.oe2403.src.rpm",
          "busybox-1.36.1-14.oe2403sp1.src.rpm",
          "busybox-1.36.1-14.oe2403sp2.src.rpm",
          "busybox-1.36.1-14.oe2403sp3.src.rpm"
        ],
        "x86_64": [
          "busybox-1.36.1-14.oe2403.x86_64.rpm",
          "busybox-debuginfo-1.36.1-14.oe2403.x86_64.rpm",
          "busybox-debugsource-1.36.1-14.oe2403.x86_64.rpm",
          "busybox-petitboot-1.36.1-14.oe2403.x86_64.rpm",
          "busybox-1.36.1-14.oe2403sp1.x86_64.rpm",
          "busybox-debuginfo-1.36.1-14.oe2403sp1.x86_64.rpm",
          "busybox-debugsource-1.36.1-14.oe2403sp1.x86_64.rpm",
          "busybox-petitboot-1.36.1-14.oe2403sp1.x86_64.rpm",
          "busybox-1.36.1-14.oe2403sp2.x86_64.rpm",
          "busybox-debuginfo-1.36.1-14.oe2403sp2.x86_64.rpm",
          "busybox-debugsource-1.36.1-14.oe2403sp2.x86_64.rpm",
          "busybox-petitboot-1.36.1-14.oe2403sp2.x86_64.rpm",
          "busybox-1.36.1-14.oe2403sp3.x86_64.rpm",
          "busybox-debuginfo-1.36.1-14.oe2403sp3.x86_64.rpm",
          "busybox-debugsource-1.36.1-14.oe2403sp3.x86_64.rpm",
          "busybox-petitboot-1.36.1-14.oe2403sp3.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:24.03-LTS",
        "name": "busybox",
        "purl": "pkg:rpm/openEuler/busybox\u0026distro=openEuler-24.03-LTS"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.36.1-14.oe2403sp3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "aarch64": [
          "busybox-1.36.1-14.oe2403sp1.aarch64.rpm",
          "busybox-debuginfo-1.36.1-14.oe2403sp1.aarch64.rpm",
          "busybox-debugsource-1.36.1-14.oe2403sp1.aarch64.rpm",
          "busybox-petitboot-1.36.1-14.oe2403sp1.aarch64.rpm"
        ],
        "noarch": [
          "busybox-help-1.36.1-14.oe2403sp1.noarch.rpm"
        ],
        "src": [
          "busybox-1.36.1-14.oe2403sp1.src.rpm"
        ],
        "x86_64": [
          "busybox-1.36.1-14.oe2403sp1.x86_64.rpm",
          "busybox-debuginfo-1.36.1-14.oe2403sp1.x86_64.rpm",
          "busybox-debugsource-1.36.1-14.oe2403sp1.x86_64.rpm",
          "busybox-petitboot-1.36.1-14.oe2403sp1.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:24.03-LTS-SP1",
        "name": "busybox",
        "purl": "pkg:rpm/openEuler/busybox\u0026distro=openEuler-24.03-LTS-SP1"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.36.1-14.oe2403sp1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "aarch64": [
          "busybox-1.36.1-14.oe2403sp2.aarch64.rpm",
          "busybox-debuginfo-1.36.1-14.oe2403sp2.aarch64.rpm",
          "busybox-debugsource-1.36.1-14.oe2403sp2.aarch64.rpm",
          "busybox-petitboot-1.36.1-14.oe2403sp2.aarch64.rpm"
        ],
        "noarch": [
          "busybox-help-1.36.1-14.oe2403sp2.noarch.rpm"
        ],
        "src": [
          "busybox-1.36.1-14.oe2403sp2.src.rpm"
        ],
        "x86_64": [
          "busybox-1.36.1-14.oe2403sp2.x86_64.rpm",
          "busybox-debuginfo-1.36.1-14.oe2403sp2.x86_64.rpm",
          "busybox-debugsource-1.36.1-14.oe2403sp2.x86_64.rpm",
          "busybox-petitboot-1.36.1-14.oe2403sp2.x86_64.rpm"
        ]
      },
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        "ecosystem": "openEuler:24.03-LTS-SP2",
        "name": "busybox",
        "purl": "pkg:rpm/openEuler/busybox\u0026distro=openEuler-24.03-LTS-SP2"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.36.1-14.oe2403sp2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "aarch64": [
          "busybox-1.36.1-14.oe2403sp3.aarch64.rpm",
          "busybox-debuginfo-1.36.1-14.oe2403sp3.aarch64.rpm",
          "busybox-debugsource-1.36.1-14.oe2403sp3.aarch64.rpm",
          "busybox-petitboot-1.36.1-14.oe2403sp3.aarch64.rpm"
        ],
        "noarch": [
          "busybox-help-1.36.1-14.oe2403sp3.noarch.rpm"
        ],
        "src": [
          "busybox-1.36.1-14.oe2403sp3.src.rpm"
        ],
        "x86_64": [
          "busybox-1.36.1-14.oe2403sp3.x86_64.rpm",
          "busybox-debuginfo-1.36.1-14.oe2403sp3.x86_64.rpm",
          "busybox-debugsource-1.36.1-14.oe2403sp3.x86_64.rpm",
          "busybox-petitboot-1.36.1-14.oe2403sp3.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:24.03-LTS-SP3",
        "name": "busybox",
        "purl": "pkg:rpm/openEuler/busybox\u0026distro=openEuler-24.03-LTS-SP3"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.36.1-14.oe2403sp3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "severity": "High"
  },
  "details": "The Swiss Army Knife of Embedded Linux\r\n\r\nSecurity Fix(es):\n\nA flaw was found in BusyBox. Incomplete path sanitization in its archive extraction utilities allows an attacker to craft malicious archives that when extracted, and under specific conditions, may write to files outside the intended directory. This can lead to arbitrary file overwrite, potentially enabling code execution through the modification of sensitive system files.(CVE-2026-26157)\n\nA flaw was found in BusyBox. This vulnerability allows an attacker to modify files outside of the intended extraction directory by crafting a malicious tar archive containing unvalidated hardlink or symlink entries. If the tar archive is extracted with elevated privileges, this flaw can lead to privilege escalation, enabling an attacker to gain unauthorized access to critical system files.(CVE-2026-26158)",
  "id": "OESA-2026-1544",
  "modified": "2026-08-06T11:10:33Z",
  "published": "2026-03-15T11:10:33Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-1544"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-26157"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-26158"
    }
  ],
  "schema_version": "1.7.2",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "busybox security update",
  "upstream": [
    "CVE-2026-26157",
    "CVE-2026-26158"
  ]
}

CVE-2026-26157 (GCVE-0-2026-26157)

Vulnerability from cvelistv5 – Published: 2026-02-11 20:27 – Updated: 2026-07-15 01:15

Title

Busybox: busybox: arbitrary file overwrite and potential code execution via incomplete path sanitization

Summary

Severity

7 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-02-12 04:55 UTC

CWE

CWE-73 - External Control of File Name or Path

Assigner

redhat redhat root

References

6 references

URL	Tags
https://access.redhat.com/errata/RHSA-2026:13831	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2026-26157	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2439039	issue-trackingx_refsource_REDHAT
https://git.busybox.net/busybox/commit/archival?i…
https://cert-portal.siemens.com/productcert/html/…
https://security.access.redhat.com/data/csaf/v2/v…	x_sadp-csaf-vex

Impacted products

3 products

Vendor	Product	Version
Red Hat	Red Hat Hardened Images	Unaffected: 1.37.0-7.2.hum1 , < * (rpm) cpe:/a:redhat:hummingbird:1
Red Hat	Red Hat Enterprise Linux 6	cpe:/o:redhat:enterprise_linux:6
Siemens	RUGGEDCOM RST2428P	Affected: 0 , < V4.0 (custom)

Date Public

2026-02-11 00:00

Credits

Red Hat would like to thank Calil Khalil (Hakal) for reporting this issue.

Show details on NVD website

JSON

To clipboard

{
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        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-26157",
                "options": [
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                  },
                  {
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                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-02-12T04:55:24.022631Z",
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        "workarounds": [
          {
            "lang": "en",
            "value": "As a prevention measure, avoid extracting archives from untrusted sources using BusyBox utilities. If extraction of untrusted archives is necessary, perform it within a highly isolated and restricted environment, such as a container with a read-only root filesystem and minimal privileges, to limit the potential impact of arbitrary file overwrites."
          }
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CVE-2026-26158 (GCVE-0-2026-26158)

Vulnerability from cvelistv5 – Published: 2026-02-11 20:27 – Updated: 2026-07-15 01:15

Title

Busybox: busybox: arbitrary file modification and privilege escalation via unvalidated tar archive entries

Summary

Severity

7 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-02-12 04:55 UTC

CWE

CWE-73 - External Control of File Name or Path

Assigner

redhat redhat root

References

6 references

URL	Tags
https://access.redhat.com/errata/RHSA-2026:13831	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2026-26158	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2439040	issue-trackingx_refsource_REDHAT
https://git.busybox.net/busybox/commit/archival?i…
https://cert-portal.siemens.com/productcert/html/…
https://security.access.redhat.com/data/csaf/v2/v…	x_sadp-csaf-vex

Impacted products

3 products

Vendor	Product	Version
Red Hat	Red Hat Hardened Images	Unaffected: 1.37.0-7.2.hum1 , < * (rpm) cpe:/a:redhat:hummingbird:1
Red Hat	Red Hat Enterprise Linux 6	cpe:/o:redhat:enterprise_linux:6
Siemens	RUGGEDCOM RST2428P	Affected: 0 , < V4.0 (custom)

Date Public

2026-02-11 00:00

Credits

Red Hat would like to thank Calil Khalil (Hakal) for reporting this issue.

Show details on NVD website

JSON

To clipboard

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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.
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

oesa-2026-1544

Vulnerability from osv_openeuler

CVE-2026-26157 (GCVE-0-2026-26157)

CVE-2026-26158 (GCVE-0-2026-26158)

Tags

Sightings

Nomenclature

Related by attack behaviour