Vulnerability-Lookup

GHSA-6PC7-X5HM-C6FJ

Vulnerability from github – Published: 2026-09-14 18:31 – Updated: 2026-09-14 18:31

Details

A vulnerability was found in nanocoai NanoClaw up to 2.1.17. This issue affects the function forwardAttachedFiles of the file src/modules/agent-to-agent/agent-route.ts of the component Attachment Handler. The manipulation results in link following. The attack may be performed from remote. The exploit has been made public and could be used. The patch is identified as 3f9ed607b7e7a4872747295f75286f1c377d7c33. It is advisable to implement a patch to correct this issue.

Severity

6.3 (Medium)


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

2.1 (Low)


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

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JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2026-90807"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-59"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-14T18:20:28Z",
    "severity": "LOW"
  },
  "details": "A vulnerability was found in nanocoai NanoClaw up to 2.1.17. This issue affects the function forwardAttachedFiles of the file src/modules/agent-to-agent/agent-route.ts of the component Attachment Handler. The manipulation results in link following. The attack may be performed from remote. The exploit has been made public and could be used. The patch is identified as 3f9ed607b7e7a4872747295f75286f1c377d7c33. It is advisable to implement a patch to correct this issue.",
  "id": "GHSA-6pc7-x5hm-c6fj",
  "modified": "2026-09-14T18:31:26Z",
  "published": "2026-09-14T18:31:26Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-90807"
    },
    {
      "type": "WEB",
      "url": "https://github.com/nanocoai/nanoclaw/issues/2828"
    },
    {
      "type": "WEB",
      "url": "https://github.com/nanocoai/nanoclaw/commit/3f9ed607b7e7a4872747295f75286f1c377d7c33"
    },
    {
      "type": "WEB",
      "url": "https://github.com/nanocoai/nanoclaw"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/cve/CVE-2026-90807"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/submit/922841"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/vuln/403309"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/vuln/403309/cti"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/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-2026-90807 (GCVE-0-2026-90807)

Vulnerability from cvelistv5 – Published: 2026-09-14 17:45 – Updated: 2026-09-14 17:45 X_Open Source

Title

nanocoai NanoClaw Attachment agent-route.ts forwardAttachedFiles link following

Summary

Severity

5.3 (Medium)


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

6.3 (Medium)


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

6.3 (Medium)


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

CWE

CWE-59 - Link Following

Assigner

VulDB mitre root

References

7 references

URL	Tags
https://vuldb.com/vuln/403309	vdb-entrytechnical-description
https://vuldb.com/vuln/403309/cti	signaturepermissions-required
https://vuldb.com/cve/CVE-2026-90807	third-party-advisory
https://vuldb.com/submit/922841	third-party-advisory
https://github.com/nanocoai/nanoclaw/issues/2828	exploitissue-tracking
https://github.com/nanocoai/nanoclaw/commit/3f9ed…	patch
https://github.com/nanocoai/nanoclaw/	product

Impacted products

1 product

Vendor	Product	Version
nanocoai	NanoClaw	Affected: 2.1.0 Affected: 2.1.1 Affected: 2.1.2 Affected: 2.1.3 Affected: 2.1.4 Affected: 2.1.5 Affected: 2.1.6 Affected: 2.1.7 Affected: 2.1.8 Affected: 2.1.9 Affected: 2.1.10 Affected: 2.1.11 Affected: 2.1.12 Affected: 2.1.13 Affected: 2.1.14 Affected: 2.1.15 Affected: 2.1.16 Affected: 2.1.17 cpe:2.3:a:nanocoai:nanoclaw::::::::

Credits

Eric-a (VulDB User)

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JSON

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "cpes": [
            "cpe:2.3:a:nanocoai:nanoclaw:*:*:*:*:*:*:*:*"
          ],
          "modules": [
            "Attachment Handler"
          ],
          "product": "NanoClaw",
          "vendor": "nanocoai",
          "versions": [
            {
              "status": "affected",
              "version": "2.1.0"
            },
            {
              "status": "affected",
              "version": "2.1.1"
            },
            {
              "status": "affected",
              "version": "2.1.2"
            },
            {
              "status": "affected",
              "version": "2.1.3"
            },
            {
              "status": "affected",
              "version": "2.1.4"
            },
            {
              "status": "affected",
              "version": "2.1.5"
            },
            {
              "status": "affected",
              "version": "2.1.6"
            },
            {
              "status": "affected",
              "version": "2.1.7"
            },
            {
              "status": "affected",
              "version": "2.1.8"
            },
            {
              "status": "affected",
              "version": "2.1.9"
            },
            {
              "status": "affected",
              "version": "2.1.10"
            },
            {
              "status": "affected",
              "version": "2.1.11"
            },
            {
              "status": "affected",
              "version": "2.1.12"
            },
            {
              "status": "affected",
              "version": "2.1.13"
            },
            {
              "status": "affected",
              "version": "2.1.14"
            },
            {
              "status": "affected",
              "version": "2.1.15"
            },
            {
              "status": "affected",
              "version": "2.1.16"
            },
            {
              "status": "affected",
              "version": "2.1.17"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "Eric-a (VulDB User)"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability was found in nanocoai NanoClaw up to 2.1.17. This issue affects the function forwardAttachedFiles of the file src/modules/agent-to-agent/agent-route.ts of the component Attachment Handler. The manipulation results in link following. The attack may be performed from remote. The exploit has been made public and could be used. The patch is identified as 3f9ed607b7e7a4872747295f75286f1c377d7c33. It is advisable to implement a patch to correct this issue."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P",
            "version": "4.0"
          }
        },
        {
          "cvssV3_1": {
            "baseScore": 6.3,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C",
            "version": "3.1"
          }
        },
        {
          "cvssV3_0": {
            "baseScore": 6.3,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C",
            "version": "3.0"
          }
        },
        {
          "cvssV2_0": {
            "baseScore": 6.5,
            "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:OF/RC:C",
            "version": "2.0"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-59",
              "description": "Link Following",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-14T17:45:14.424Z",
        "orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
        "shortName": "VulDB"
      },
      "references": [
        {
          "name": "VDB-403309 | nanocoai NanoClaw Attachment agent-route.ts forwardAttachedFiles link following",
          "tags": [
            "vdb-entry",
            "technical-description"
          ],
          "url": "https://vuldb.com/vuln/403309"
        },
        {
          "name": "VDB-403309 | CTI Indicators (IOB, IOC, IOA)",
          "tags": [
            "signature",
            "permissions-required"
          ],
          "url": "https://vuldb.com/vuln/403309/cti"
        },
        {
          "name": "CVE-2026-90807 | CVE Analysis and Report",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://vuldb.com/cve/CVE-2026-90807"
        },
        {
          "name": "Submit #922841 | nanocoai nanoclaw \u003c= 2.1.17 Improper Link Resolution Before File Access / Link Following (CWE-59)",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://vuldb.com/submit/922841"
        },
        {
          "tags": [
            "exploit",
            "issue-tracking"
          ],
          "url": "https://github.com/nanocoai/nanoclaw/issues/2828"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/nanocoai/nanoclaw/commit/3f9ed607b7e7a4872747295f75286f1c377d7c33"
        },
        {
          "tags": [
            "product"
          ],
          "url": "https://github.com/nanocoai/nanoclaw/"
        }
      ],
      "tags": [
        "x_open-source"
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2026-09-13T00:00:00.000Z",
          "value": "Advisory disclosed"
        },
        {
          "lang": "en",
          "time": "2026-09-13T02:00:00.000Z",
          "value": "VulDB entry created"
        },
        {
          "lang": "en",
          "time": "2026-09-13T18:05:39.000Z",
          "value": "VulDB entry last update"
        }
      ],
      "title": "nanocoai NanoClaw Attachment agent-route.ts forwardAttachedFiles link following",
      "x_generator": [
        "VulDB PVTS v202609"
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
    "assignerShortName": "VulDB",
    "cveId": "CVE-2026-90807",
    "datePublished": "2026-09-14T17:45:14.424Z",
    "dateReserved": "2026-09-13T16:00:34.907Z",
    "dateUpdated": "2026-09-14T17:45:14.424Z",
    "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.

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.

Action not permitted

GHSA-6PC7-X5HM-C6FJ

CVE-2026-90807 (GCVE-0-2026-90807)

Tags

Sightings

Nomenclature