Vulnerability-Lookup

GHSA-HH77-FHMP-PQFV

Vulnerability from github – Published: 2026-06-30 18:31 – Updated: 2026-06-30 18:31

Details

OpenBMB ChatDev through 2.2.0, fixed in commit 4fd4da6, contains a path traversal vulnerability that allows unauthenticated remote attackers to write or delete arbitrary files by supplying a malicious multipart filename in the file upload endpoint. Attackers can send a crafted filename containing path traversal sequences or an absolute path to the POST uploads session endpoint, which constructs the destination path without sanitization in save_upload_file, causing file write and cleanup operations to target attacker-chosen paths on the server filesystem.

Severity

9.1 (Critical)


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

8.8 (High)


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

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JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2026-58166"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-22"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-06-30T17:16:23Z",
    "severity": "HIGH"
  },
  "details": "OpenBMB ChatDev through 2.2.0, fixed in commit 4fd4da6, contains a path traversal vulnerability that allows unauthenticated remote attackers to write or delete arbitrary files by supplying a malicious multipart filename in the file upload endpoint. Attackers can send a crafted filename containing path traversal sequences or an absolute path to the POST uploads session endpoint, which constructs the destination path without sanitization in save_upload_file, causing file write and cleanup operations to target attacker-chosen paths on the server filesystem.",
  "id": "GHSA-hh77-fhmp-pqfv",
  "modified": "2026-06-30T18:31:38Z",
  "published": "2026-06-30T18:31:38Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-58166"
    },
    {
      "type": "WEB",
      "url": "https://github.com/OpenBMB/ChatDev/issues/638"
    },
    {
      "type": "WEB",
      "url": "https://github.com/OpenBMB/ChatDev/pull/641"
    },
    {
      "type": "WEB",
      "url": "https://github.com/OpenBMB/ChatDev/commit/4fd4da603801766b14ad8788649cfc1ad21f99a6"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/openbmb-chatdev-unauthenticated-path-traversal-in-upload-handler-allows-arbitrary-file-write-and-delete"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/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-2026-58166 (GCVE-0-2026-58166)

Vulnerability from cvelistv5 – Published: 2026-06-30 15:51 – Updated: 2026-07-01 15:00 X_Open Source

Title

OpenBMB ChatDev - Unauthenticated Path Traversal in Upload Handler Allows Arbitrary File Write and Delete

Summary

Severity

9.1 (Critical)


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

8.8 (High)


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

SSVC

Exploitation: poc Automatable: yes Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Assigner

VulnCheck

References

4 references

URL	Tags
https://github.com/OpenBMB/ChatDev/issues/638	technical-descriptionexploit
https://github.com/OpenBMB/ChatDev/pull/641	issue-tracking
https://github.com/OpenBMB/ChatDev/commit/4fd4da6…	patch
https://www.vulncheck.com/advisories/openbmb-chat…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
OpenBMB	ChatDev	Affected: 0 , ≤ 2.2.0 (semver) Unaffected: 4fd4da603801766b14ad8788649cfc1ad21f99a6 (git)

Date Public

2026-06-29 00:00

Credits

George Chen

Show details on NVD website

JSON

To clipboard

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                  },
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                "timestamp": "2026-07-01T15:00:34.716754Z",
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          "repo": "https://github.com/OpenBMB/ChatDev",
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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.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-HH77-FHMP-PQFV

CVE-2026-58166 (GCVE-0-2026-58166)

Tags

Sightings

Nomenclature