Vulnerability-Lookup

GHSA-5CV5-VM4Q-7WMX

Vulnerability from github – Published: 2026-05-17 00:31 – Updated: 2026-05-17 00:31

Details

Das U-Boot before 2026.04 allows FIT (Flat Image Tree) signature verification bypass because hashed-nodes is omitted from a hash.

Severity

8.2 (High)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2026-46728"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-346"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-16T22:16:13Z",
    "severity": "HIGH"
  },
  "details": "Das U-Boot before 2026.04 allows FIT (Flat Image Tree) signature verification bypass because hashed-nodes is omitted from a hash.",
  "id": "GHSA-5cv5-vm4q-7wmx",
  "modified": "2026-05-17T00:31:38Z",
  "published": "2026-05-17T00:31:38Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/barebox/barebox/security/advisories/GHSA-3fvj-q26p-j6h4"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46728"
    },
    {
      "type": "WEB",
      "url": "https://github.com/u-boot/u-boot/commit/2092322b31cc8b1f8c9e2e238d1043ae0637b241"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-46728 (GCVE-0-2026-46728)

Vulnerability from cvelistv5 – Published: 2026-05-16 21:26 – Updated: 2026-05-18 12:53

Summary

Das U-Boot before 2026.04 allows FIT (Flat Image Tree) signature verification bypass because hashed-nodes is omitted from a hash.

Severity

8.2 (High)


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

CWE

CWE-346 - Origin Validation Error

Assigner

mitre

References

2 references

URL	Tags
https://github.com/barebox/barebox/security/advis…
https://github.com/u-boot/u-boot/commit/2092322b3…

Impacted products

1 product

Vendor	Product	Version
denx	U-Boot	Affected: 0 , < 2026.04 (custom)

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        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-46728",
                "options": [
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                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-18T12:53:04.053259Z",
                "version": "2.0.3"
              },
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      }
    ],
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          "defaultStatus": "unaffected",
          "product": "U-Boot",
          "vendor": "denx",
          "versions": [
            {
              "lessThan": "2026.04",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
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                  "criteria": "cpe:2.3:a:denx:u-boot:*:*:*:*:*:*:*:*",
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    "dateReserved": "2026-05-16T21:26:48.876Z",
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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.

Action not permitted

GHSA-5CV5-VM4Q-7WMX

CVE-2026-46728 (GCVE-0-2026-46728)

Tags

Sightings

Nomenclature