github - ghsa-h92g-3xc3-ww2r

GHSA-H92G-3XC3-WW2R

Vulnerability from github – Published: 2025-06-07 15:30 – Updated: 2025-06-17 21:41

Summary

Skyvern has a Jinja runtime leak

Details

Skyvern through 0.2.0 has a Jinja runtime leak in sdk/workflow/models/block.py.

Severity ?

8.5 (High)


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

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{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "skyvern"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "0.2.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2025-49619"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-1336"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2025-06-09T13:04:44Z",
    "nvd_published_at": "2025-06-07T14:15:21Z",
    "severity": "HIGH"
  },
  "details": "Skyvern through 0.2.0 has a Jinja runtime leak in sdk/workflow/models/block.py.",
  "id": "GHSA-h92g-3xc3-ww2r",
  "modified": "2025-06-17T21:41:21Z",
  "published": "2025-06-07T15:30:18Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-49619"
    },
    {
      "type": "WEB",
      "url": "https://github.com/Skyvern-AI/skyvern/commit/db856cd8433a204c8b45979c70a4da1e119d949d"
    },
    {
      "type": "WEB",
      "url": "https://cristibtz.blog/posts/CVE-2025-49619"
    },
    {
      "type": "WEB",
      "url": "https://cristibtz.github.io/posts/CVE-2025-49619"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/Skyvern-AI/skyvern"
    },
    {
      "type": "WEB",
      "url": "https://www.exploit-db.com/exploits/52335"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Skyvern has a Jinja runtime leak"
}

CVE-2025-49619 (GCVE-0-2025-49619)

Vulnerability from cvelistv5 – Published: 2025-06-07 00:00 – Updated: 2025-06-17 21:01

Summary

Skyvern through 0.1.85 is vulnerable to server-side template injection (SSTI) in the Prompt field of workflow blocks such as the Navigation v2 Block. Improper sanitization of Jinja2 template input allows authenticated users to inject crafted expressions that are evaluated on the server, leading to blind remote code execution (RCE).

Severity ?

8.5 (High)


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

CWE

CWE-1336 - Improper Neutralization of Special Elements Used in a Template Engine

Assigner

mitre

References

URL

Tags

	https://github.com/Skyvern-AI/skyvern/commit/db85…
	https://cristibtz.github.io/posts/CVE-2025-49619/
	https://www.exploit-db.com/exploits/52335

Impacted products

	Vendor	Product	Version
	Skyvern	Skyvern	Affected: 0 , ≤ 0.1.85 (semver)

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-49619",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-06-09T15:13:24.172326Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-06-09T15:13:27.268Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "exploit"
            ],
            "url": "https://cristibtz.blog/posts/CVE-2025-49619/"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unknown",
          "product": "Skyvern",
          "vendor": "Skyvern",
          "versions": [
            {
              "lessThanOrEqual": "0.1.85",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Skyvern through 0.1.85 is vulnerable to server-side template injection (SSTI) in the Prompt field of workflow blocks such as the Navigation v2 Block. Improper sanitization of Jinja2 template input allows authenticated users to inject crafted expressions that are evaluated on the server, leading to blind remote code execution (RCE)."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 8.5,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-1336",
              "description": "CWE-1336 Improper Neutralization of Special Elements Used in a Template Engine",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-06-17T21:01:16.030Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "url": "https://github.com/Skyvern-AI/skyvern/commit/db856cd8433a204c8b45979c70a4da1e119d949d"
        },
        {
          "url": "https://cristibtz.github.io/posts/CVE-2025-49619/"
        },
        {
          "url": "https://www.exploit-db.com/exploits/52335"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2025-49619",
    "datePublished": "2025-06-07T00:00:00.000Z",
    "dateReserved": "2025-06-07T00:00:00.000Z",
    "dateUpdated": "2025-06-17T21:01:16.030Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

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-H92G-3XC3-WW2R

CVE-2025-49619 (GCVE-0-2025-49619)

Tags

Sightings

Nomenclature