Vulnerability-Lookup

CVE-2026-16194 (GCVE-0-2026-16194)

Vulnerability from cvelistv5 – Published: 2026-07-18 21:15 – Updated: 2026-07-20 13:54 X_Open Source

Title

zhayujie CowAgent web_fetch.py WebFetch.execute server-side request forgery

Summary

A vulnerability was determined in zhayujie CowAgent up to 2.1.1. This affects the function WebFetch.execute of the file agent/tools/web_fetch/web_fetch.py. Executing a manipulation of the argument url can lead to server-side request forgery. The attack may be performed from remote. The exploit has been publicly disclosed and may be utilized. Upgrading to version 2.1.2 is able to mitigate this issue. This patch is called ea47f3097eed4f8295c4cb3d76ecb97e0f43d632. It is recommended to upgrade the affected component. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.

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

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-07-20 13:54 UTC

CWE

CWE-918 - Server-Side Request Forgery

Assigner

VulDB CNA under the mitre root

CNA scorecard B 83/100 over 3850 records in the last 180 days details

References

9 references

URL	Tags
https://vuldb.com/vuln/380009	vdb-entrytechnical-description
https://vuldb.com/vuln/380009/cti	signaturepermissions-required
https://vuldb.com/cve/CVE-2026-16194	third-party-advisory
https://vuldb.com/submit/857620	third-party-advisory
https://github.com/zhayujie/CowAgent/issues/2889	exploitissue-tracking
https://github.com/zhayujie/CowAgent/pull/2900	issue-trackingpatch
https://github.com/zhayujie/CowAgent/commit/ea47f…	patch
https://github.com/zhayujie/CowAgent/releases/tag/2.1.2	patch
https://github.com/zhayujie/CowAgent/	product

Impacted products

1 product

Vendor	Product	Version	CPE status
zhayujie	CowAgent	Affected: 2.1.0 Affected: 2.1.1 Unaffected: 2.1.2 cpe:2.3:a:zhayujie:cowagent::::::::

Credits

Eric-x (VulDB User) VulDB CNA Team

Show details on NVD website

JSON

To clipboard

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              "name": "Submit #857620 | zhayujie CowAgent 2.1.1 Server-Side Request Forgery (CWE-918)",
              "tags": [
                "third-party-advisory"
              ],
              "url": "https://vuldb.com/submit/857620"
            },
            {
              "tags": [
                "exploit",
                "issue-tracking"
              ],
              "url": "https://github.com/zhayujie/CowAgent/issues/2889"
            },
            {
              "tags": [
                "issue-tracking",
                "patch"
              ],
              "url": "https://github.com/zhayujie/CowAgent/pull/2900"
            },
            {
              "tags": [
                "patch"
              ],
              "url": "https://github.com/zhayujie/CowAgent/commit/ea47f3097eed4f8295c4cb3d76ecb97e0f43d632"
            },
            {
              "tags": [
                "patch"
              ],
              "url": "https://github.com/zhayujie/CowAgent/releases/tag/2.1.2"
            },
            {
              "tags": [
                "product"
              ],
              "url": "https://github.com/zhayujie/CowAgent/"
            }
          ],
          "tags": [
            "x_open-source"
          ],
          "timeline": [
            {
              "lang": "en",
              "time": "2026-07-18T00:00:00.000Z",
              "value": "Advisory disclosed"
            },
            {
              "lang": "en",
              "time": "2026-07-18T02:00:00.000Z",
              "value": "VulDB entry created"
            },
            {
              "lang": "en",
              "time": "2026-07-18T04:42:54.000Z",
              "value": "VulDB entry last update"
            }
          ],
          "title": "zhayujie CowAgent web_fetch.py WebFetch.execute server-side request forgery"
        }
      },
      "cveMetadata": {
        "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
        "assignerShortName": "VulDB",
        "cveId": "CVE-2026-16194",
        "datePublished": "2026-07-18T21:15:10.826Z",
        "dateReserved": "2026-07-18T02:37:49.144Z",
        "dateUpdated": "2026-07-20T13:54:55.381Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}

FKIE_CVE-2026-16194

Vulnerability from fkie_nvd - Published: 2026-07-18 22:16 - Updated: 2026-10-24 20:10

Severity

6.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

Summary

References

	URL	Tags
	cna@vuldb.com	https://github.com/zhayujie/CowAgent/
	cna@vuldb.com	https://github.com/zhayujie/CowAgent/commit/ea47f3097eed4f8295c4cb3d76ecb97e0f43d632
	cna@vuldb.com	https://github.com/zhayujie/CowAgent/issues/2889
	cna@vuldb.com	https://github.com/zhayujie/CowAgent/pull/2900
	cna@vuldb.com	https://github.com/zhayujie/CowAgent/releases/tag/2.1.2
	cna@vuldb.com	https://vuldb.com/cve/CVE-2026-16194
	cna@vuldb.com	https://vuldb.com/submit/857620
	cna@vuldb.com	https://vuldb.com/vuln/380009
	cna@vuldb.com	https://vuldb.com/vuln/380009/cti

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "cpes": [
            "cpe:2.3:a:zhayujie:cowagent:*:*:*:*:*:*:*:*"
          ],
          "product": "CowAgent",
          "vendor": "zhayujie",
          "versions": [
            {
              "status": "affected",
              "version": "2.1.0"
            },
            {
              "status": "affected",
              "version": "2.1.1"
            },
            {
              "status": "unaffected",
              "version": "2.1.2"
            }
          ]
        }
      ],
      "source": "cna@vuldb.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability was determined in zhayujie CowAgent up to 2.1.1. This affects the function WebFetch.execute of the file agent/tools/web_fetch/web_fetch.py. Executing a manipulation of the argument url can lead to server-side request forgery. The attack may be performed from remote. The exploit has been publicly disclosed and may be utilized. Upgrading to version 2.1.2 is able to mitigate this issue. This patch is called ea47f3097eed4f8295c4cb3d76ecb97e0f43d632. It is recommended to upgrade the affected component. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product."
    },
    {
      "lang": "es",
      "value": "Se determin\u00f3 una vulnerabilidad en zhayujie CowAgent hasta la versi\u00f3n 2.1.1. Esto afecta la funci\u00f3n WebFetch.execute del archivo agent/tools/web_fetch/web_fetch.py. Ejecutar una manipulaci\u00f3n del argumento url puede llevar a una falsificaci\u00f3n de petici\u00f3n del lado del servidor. El ataque puede realizarse desde remoto. El exploit ha sido divulgado p\u00fablicamente y puede ser utilizado. La actualizaci\u00f3n a la versi\u00f3n 2.1.2 es capaz de mitigar este problema. Este parche se llama ea47f3097eed4f8295c4cb3d76ecb97e0f43d632. Se recomienda actualizar el componente afectado. El proveedor fue contactado tempranamente, respondi\u00f3 de una manera muy profesional y r\u00e1pidamente lanz\u00f3 una versi\u00f3n corregida del producto afectado."
    }
  ],
  "id": "CVE-2026-16194",
  "lastModified": "2026-10-24T20:10:00.137",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "SINGLE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 6.5,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 8.0,
        "impactScore": 6.4,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "cna@vuldb.com",
        "type": "Secondary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 6.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.4,
        "source": "cna@vuldb.com",
        "type": "Secondary"
      }
    ],
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 2.1,
          "baseSeverity": "LOW",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "PROOF_OF_CONCEPT",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "LOW",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "userInteraction": "NONE",
          "valueDensity": "NOT_DEFINED",
          "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/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",
          "version": "4.0",
          "vulnAvailabilityImpact": "LOW",
          "vulnConfidentialityImpact": "LOW",
          "vulnIntegrityImpact": "LOW",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "cna@vuldb.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-16194",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-07-20T13:54:37.147585Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-07-18T22:16:43.830",
  "references": [
    {
      "source": "cna@vuldb.com",
      "url": "https://github.com/zhayujie/CowAgent/"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://github.com/zhayujie/CowAgent/commit/ea47f3097eed4f8295c4cb3d76ecb97e0f43d632"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://github.com/zhayujie/CowAgent/issues/2889"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://github.com/zhayujie/CowAgent/pull/2900"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://github.com/zhayujie/CowAgent/releases/tag/2.1.2"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://vuldb.com/cve/CVE-2026-16194"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://vuldb.com/submit/857620"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://vuldb.com/vuln/380009"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://vuldb.com/vuln/380009/cti"
    }
  ],
  "sourceIdentifier": "cna@vuldb.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-918"
        }
      ],
      "source": "cna@vuldb.com",
      "type": "Secondary"
    }
  ]
}

GHSA-WCFC-XP4R-C7RV

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

Details

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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-16194"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-918"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-18T22:16:43Z",
    "severity": "LOW"
  },
  "details": "A vulnerability was determined in zhayujie CowAgent up to 2.1.1. This affects the function WebFetch.execute of the file agent/tools/web_fetch/web_fetch.py. Executing a manipulation of the argument url can lead to server-side request forgery. The attack may be performed from remote. The exploit has been publicly disclosed and may be utilized. Upgrading to version 2.1.2 is able to mitigate this issue. This patch is called ea47f3097eed4f8295c4cb3d76ecb97e0f43d632. It is recommended to upgrade the affected component. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.",
  "id": "GHSA-wcfc-xp4r-c7rv",
  "modified": "2026-07-19T00:30:23Z",
  "published": "2026-07-19T00:30:22Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-16194"
    },
    {
      "type": "WEB",
      "url": "https://github.com/zhayujie/CowAgent/issues/2889"
    },
    {
      "type": "WEB",
      "url": "https://github.com/zhayujie/CowAgent/pull/2900"
    },
    {
      "type": "WEB",
      "url": "https://github.com/zhayujie/CowAgent/commit/ea47f3097eed4f8295c4cb3d76ecb97e0f43d632"
    },
    {
      "type": "WEB",
      "url": "https://github.com/zhayujie/CowAgent"
    },
    {
      "type": "WEB",
      "url": "https://github.com/zhayujie/CowAgent/releases/tag/2.1.2"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/cve/CVE-2026-16194"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/submit/857620"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/vuln/380009"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/vuln/380009/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"
    }
  ]
}

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.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

Order JSON

How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

Publication & reservation Sightings KEV catalogs Other timestamps

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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

CVE-2026-16194 (GCVE-0-2026-16194)

FKIE_CVE-2026-16194

GHSA-WCFC-XP4R-C7RV

Tags

Sightings

Nomenclature

Vulnerability timeline

Related by attack behaviour