Vulnerability-Lookup

GHSA-367P-R6P3-QQMV

Vulnerability from github – Published: 2026-07-19 00:30 – Updated: 2026-07-19 00:30

Details

A vulnerability was detected in Sipeed PicoClaw up to 0.2.9. The impacted element is an unknown function of the file web/backend/middleware/access_control.go of the component First Run Setup. Performing a manipulation of the argument allowed_cidrs results in authentication bypass using alternate channel. The attack may be initiated remotely. The attack's complexity is rated as high. The exploitability is regarded as difficult. The exploit is now public and may be used. The patch is named 017601354be38cb027ff3ffb01aed79bd5d12610. Applying a patch is the recommended action to fix this issue.

Severity

5.6 (Medium)


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

2.9 (Low)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2026-16198"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-287"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-19T00:16:40Z",
    "severity": "LOW"
  },
  "details": "A vulnerability was detected in Sipeed PicoClaw up to 0.2.9. The impacted element is an unknown function of the file web/backend/middleware/access_control.go of the component First Run Setup. Performing a manipulation of the argument allowed_cidrs results in authentication bypass using alternate channel. The attack may be initiated remotely. The attack\u0027s complexity is rated as high. The exploitability is regarded as difficult. The exploit is now public and may be used. The patch is named 017601354be38cb027ff3ffb01aed79bd5d12610. Applying a patch is the recommended action to fix this issue.",
  "id": "GHSA-367p-r6p3-qqmv",
  "modified": "2026-07-19T00:30:23Z",
  "published": "2026-07-19T00:30:23Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-16198"
    },
    {
      "type": "WEB",
      "url": "https://github.com/sipeed/picoclaw/issues/3080"
    },
    {
      "type": "WEB",
      "url": "https://github.com/sipeed/picoclaw/pull/3083"
    },
    {
      "type": "WEB",
      "url": "https://github.com/sipeed/picoclaw/commit/017601354be38cb027ff3ffb01aed79bd5d12610"
    },
    {
      "type": "WEB",
      "url": "https://github.com/sipeed/picoclaw"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/cve/CVE-2026-16198"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/submit/852965"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/vuln/380014"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/vuln/380014/cti"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

CVE-2026-16198 (GCVE-0-2026-16198)

Vulnerability from cvelistv5 – Published: 2026-07-18 23:30 – Updated: 2026-07-21 14:32 X_Open Source

Title

Sipeed PicoClaw First Run Setup access_control.go authentication bypass

Summary

Severity

6.3 (Medium)


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

5.6 (Medium)


                        
                          CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C

5.6 (Medium)


                        
                          CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-07-21 14:31 UTC

CWE

CWE-288 - Authentication Bypass Using Alternate Channel
CWE-287 - Improper Authentication

Assigner

VulDB mitre root

References

8 references

URL	Tags
https://vuldb.com/vuln/380014	vdb-entrytechnical-description
https://vuldb.com/vuln/380014/cti	signaturepermissions-required
https://vuldb.com/cve/CVE-2026-16198	third-party-advisory
https://vuldb.com/submit/852965	third-party-advisory
https://github.com/sipeed/picoclaw/issues/3080	exploitissue-tracking
https://github.com/sipeed/picoclaw/pull/3083	issue-trackingpatch
https://github.com/sipeed/picoclaw/commit/0176013…	patch
https://github.com/sipeed/picoclaw/	product

Impacted products

1 product

Vendor	Product	Version
Sipeed	PicoClaw	Affected: 0.2.0 Affected: 0.2.1 Affected: 0.2.2 Affected: 0.2.3 Affected: 0.2.4 Affected: 0.2.5 Affected: 0.2.6 Affected: 0.2.7 Affected: 0.2.8 Affected: 0.2.9 cpe:2.3:a:sipeed:picoclaw::::::::

Credits

Eric-i (VulDB User)

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-16198",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-07-21T14:31:37.887675Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-07-21T14:32:20.618Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "cpes": [
            "cpe:2.3:a:sipeed:picoclaw:*:*:*:*:*:*:*:*"
          ],
          "modules": [
            "First Run Setup"
          ],
          "product": "PicoClaw",
          "vendor": "Sipeed",
          "versions": [
            {
              "status": "affected",
              "version": "0.2.0"
            },
            {
              "status": "affected",
              "version": "0.2.1"
            },
            {
              "status": "affected",
              "version": "0.2.2"
            },
            {
              "status": "affected",
              "version": "0.2.3"
            },
            {
              "status": "affected",
              "version": "0.2.4"
            },
            {
              "status": "affected",
              "version": "0.2.5"
            },
            {
              "status": "affected",
              "version": "0.2.6"
            },
            {
              "status": "affected",
              "version": "0.2.7"
            },
            {
              "status": "affected",
              "version": "0.2.8"
            },
            {
              "status": "affected",
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            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "Eric-i (VulDB User)"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
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        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "baseScore": 6.3,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P",
            "version": "4.0"
          }
        },
        {
          "cvssV3_1": {
            "baseScore": 5.6,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C",
            "version": "3.1"
          }
        },
        {
          "cvssV3_0": {
            "baseScore": 5.6,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C",
            "version": "3.0"
          }
        },
        {
          "cvssV2_0": {
            "baseScore": 5.1,
            "vectorString": "AV:N/AC:H/Au:N/C:P/I:P/A:P/E:POC/RL:OF/RC:C",
            "version": "2.0"
          }
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      "problemTypes": [
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          "descriptions": [
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              "cweId": "CWE-288",
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          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-287",
              "description": "Improper Authentication",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-18T23:30:18.741Z",
        "orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
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      },
      "references": [
        {
          "name": "VDB-380014 | Sipeed PicoClaw First Run Setup access_control.go authentication bypass",
          "tags": [
            "vdb-entry",
            "technical-description"
          ],
          "url": "https://vuldb.com/vuln/380014"
        },
        {
          "name": "VDB-380014 | CTI Indicators (IOB, IOC, IOA)",
          "tags": [
            "signature",
            "permissions-required"
          ],
          "url": "https://vuldb.com/vuln/380014/cti"
        },
        {
          "name": "CVE-2026-16198 | CVE Analysis and Report",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://vuldb.com/cve/CVE-2026-16198"
        },
        {
          "name": "Submit #852965 | Sipeed PicoClaw \u003c= v0.2.9 Authentication Bypass Using an Alternate Path or Channel (CWE-288)",
          "tags": [
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          ],
          "url": "https://vuldb.com/submit/852965"
        },
        {
          "tags": [
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            "issue-tracking"
          ],
          "url": "https://github.com/sipeed/picoclaw/issues/3080"
        },
        {
          "tags": [
            "issue-tracking",
            "patch"
          ],
          "url": "https://github.com/sipeed/picoclaw/pull/3083"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/sipeed/picoclaw/commit/017601354be38cb027ff3ffb01aed79bd5d12610"
        },
        {
          "tags": [
            "product"
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          "url": "https://github.com/sipeed/picoclaw/"
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          "lang": "en",
          "time": "2026-07-18T02:00:00.000Z",
          "value": "VulDB entry created"
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        {
          "lang": "en",
          "time": "2026-07-18T09:28:00.000Z",
          "value": "VulDB entry last update"
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      "title": "Sipeed PicoClaw First Run Setup access_control.go authentication bypass"
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    "datePublished": "2026-07-18T23:30:18.741Z",
    "dateReserved": "2026-07-18T07:22:40.821Z",
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    "state": "PUBLISHED"
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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.

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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GHSA-367P-R6P3-QQMV

CVE-2026-16198 (GCVE-0-2026-16198)

Tags

Sightings

Nomenclature

Related by attack behaviour