Vulnerability-Lookup

GHSA-33PR-M977-5W97

Vulnerability from github – Published: 2025-09-02 19:43 – Updated: 2025-09-04 13:52

Summary

Soft Serve vulnerable to arbitrary file writing through SSH API

Details

Attackers can create/override arbitrary files with uncontrolled data.

For a PoC, spin up an instance of soft-serve as explained in the README, and execute the following command:

ssh -p23231 localhost repo commit icecream -- --output=/tmp/pwned

It should have created a file in /tmp/pwned.

Severity

7.7 (High)


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

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{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/charmbracelet/soft-serve"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.10.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2025-58355"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-22"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2025-09-02T19:43:03Z",
    "nvd_published_at": "2025-09-04T10:42:32Z",
    "severity": "HIGH"
  },
  "details": "Attackers can create/override arbitrary files with uncontrolled data.\n\nFor a PoC, spin up an instance of soft-serve as explained in the README, and execute the following command:\n\n```sh\nssh -p23231 localhost repo commit icecream -- --output=/tmp/pwned\n```\n\nIt should have created a file in `/tmp/pwned`.",
  "id": "GHSA-33pr-m977-5w97",
  "modified": "2025-09-04T13:52:03Z",
  "published": "2025-09-02T19:43:03Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/charmbracelet/soft-serve/security/advisories/GHSA-33pr-m977-5w97"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-58355"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/charmbracelet/soft-serve"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Soft Serve vulnerable to arbitrary file writing through SSH API"
}

CVE-2025-58355 (GCVE-0-2025-58355)

Vulnerability from cvelistv5 – Published: 2025-09-03 23:52 – Updated: 2025-09-04 14:05

Title

Soft Serve is vulnerable to arbitrary file writing through its SSH API

Summary

Soft Serve is a self-hostable Git server for the command line. In versions 0.9.1 and below, attackers can create or override arbitrary files with uncontrolled data through its SSH API. This issue is fixed in version 0.10.0.

Severity

7.7 (High)


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

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-09-04 14:05 UTC

CWE

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

Assigner

GitHub_M mitre root Scorecard

References

1 reference

URL	Tags
https://github.com/charmbracelet/soft-serve/secur…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
charmbracelet	soft-serve	Affected: < 0.10.0

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-58355",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-09-04T14:05:44.519737Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-09-04T14:05:53.888Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "soft-serve",
          "vendor": "charmbracelet",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 0.10.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Soft Serve is a self-hostable Git server for the command line. In versions 0.9.1 and below, attackers can create or override arbitrary files with uncontrolled data through its SSH API. This issue is fixed in version 0.10.0."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.7,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-22",
              "description": "CWE-22: Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-09-03T23:52:23.555Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
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          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/charmbracelet/soft-serve/security/advisories/GHSA-33pr-m977-5w97"
        }
      ],
      "source": {
        "advisory": "GHSA-33pr-m977-5w97",
        "discovery": "UNKNOWN"
      },
      "title": "Soft Serve is vulnerable to arbitrary file writing through its SSH API"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2025-58355",
    "datePublished": "2025-09-03T23:52:23.555Z",
    "dateReserved": "2025-08-29T16:19:59.010Z",
    "dateUpdated": "2025-09-04T14:05:53.888Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

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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.

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.
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GHSA-33PR-M977-5W97

CVE-2025-58355 (GCVE-0-2025-58355)

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