CVE-2026-7844 (GCVE-0-2026-7844)

Vulnerability from cvelistv5 – Published: 2026-05-05 15:00 – Updated: 2026-05-05 15:00
VLAI?
Title
chatchat-space Langchain-Chatchat Compatible File Service openai_routes.py delete_file missing authentication
Summary
A vulnerability was detected in chatchat-space Langchain-Chatchat up to 0.3.1.3. This vulnerability affects the function files/list_files/retrieve_file/retrieve_file_content/delete_file of the file libs/chatchat-server/chatchat/server/api_server/openai_routes.py of the component Compatible File Service. The manipulation results in missing authentication. The attacker must have access to the local network to execute the attack. The exploit is now public and may be used. The project was informed of the problem early through an issue report but has not responded yet.
Severity ?
5.3 (Medium)
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
6.3 (Medium)
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
6.3 (Medium)
CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
CWE
Assigner
References
Impacted products
Vendor Product Version
chatchat-space Langchain-Chatchat Affected: 0.3.1.0
Affected: 0.3.1.1
Affected: 0.3.1.2
Affected: 0.3.1.3
Create a notification for this product.
Credits
Dem00 (VulDB User) VulDB CNA Team
Show details on NVD website
To clipboard 

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          "product": "Langchain-Chatchat",
          "vendor": "chatchat-space",
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              "version": "0.3.1.1"
            },
            {
              "status": "affected",
              "version": "0.3.1.2"
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            }
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        }
      ],
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          "url": "https://vuldb.com/vuln/361123"
        },
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          "tags": [
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            "permissions-required"
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        },
        {
          "name": "Submit #807790 | chatchat-space Langchain-Chatchat 0.3.1.3 Missing Authorization / CWE-862",
          "tags": [
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        },
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          "tags": [
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          "url": "https://github.com/chatchat-space/Langchain-Chatchat/issues/5465"
        },
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          "url": "https://github.com/3em0/cve_repo/blob/main/Langchain-Chatchat/Vuln-4-Missing-Auth-File-Endpoints.md"
        },
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          "tags": [
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          "time": "2026-05-05T02:00:00.000Z",
          "value": "VulDB entry created"
        },
        {
          "lang": "en",
          "time": "2026-05-05T12:26:09.000Z",
          "value": "VulDB entry last update"
        }
      ],
      "title": "chatchat-space Langchain-Chatchat Compatible File Service openai_routes.py delete_file missing authentication"
    }
  },
  "cveMetadata": {
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    "datePublished": "2026-05-05T15:00:13.227Z",
    "dateReserved": "2026-05-05T10:20:48.141Z",
    "dateUpdated": "2026-05-05T15:00:13.227Z",
    "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.