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

Vulnerability from cvelistv5 – Published: 2026-07-18 23:30 – Updated: 2026-07-18 23:30 X_Open Source
VLAI
Title
Sipeed PicoClaw First Run Setup access_control.go authentication bypass
Summary
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
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
CWE
  • CWE-288 - Authentication Bypass Using Alternate Channel
  • CWE-287 - Improper Authentication
Assigner
References
Impacted products
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:*:*:*:*:*:*:*:*
 Create a notification for this product.
Credits
Eric-i (VulDB User)
Show details on NVD website
To clipboard 

{
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        {
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            "cpe:2.3:a:sipeed:picoclaw:*:*:*:*:*:*:*:*"
          ],
          "modules": [
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          ],
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              "version": "0.2.0"
            },
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            },
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              "status": "affected",
              "version": "0.2.3"
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            {
              "status": "affected",
              "version": "0.2.4"
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          "type": "reporter",
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        }
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          "tags": [
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        },
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          "name": "Submit #852965 | Sipeed PicoClaw \u003c= v0.2.9 Authentication Bypass Using an Alternate Path or Channel (CWE-288)",
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          "url": "https://github.com/sipeed/picoclaw/issues/3080"
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          "url": "https://github.com/sipeed/picoclaw/pull/3083"
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          "url": "https://github.com/sipeed/picoclaw/commit/017601354be38cb027ff3ffb01aed79bd5d12610"
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          "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"
    }
  },
  "cveMetadata": {
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    "assignerShortName": "VulDB",
    "cveId": "CVE-2026-16198",
    "datePublished": "2026-07-18T23:30:18.741Z",
    "dateReserved": "2026-07-18T07:22:40.821Z",
    "dateUpdated": "2026-07-18T23:30:18.741Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
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  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.