Vulnerability-Lookup

PYSEC-2026-1472

Vulnerability from pysec - Published: 2026-07-07 14:34 - Updated: 2026-07-07 17:24

Details

A bug in the Jinja compiler allows an attacker that controls both the content and filename of a template to execute arbitrary Python code, regardless of if Jinja's sandbox is used.

To exploit the vulnerability, an attacker needs to control both the filename and the contents of a template. Whether that is the case depends on the type of application using Jinja. This vulnerability impacts users of applications which execute untrusted templates where the template author can also choose the template filename.

Severity

8.8 (High)


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

5.4 (Medium)


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

Impacted products

Name	purl
jinja2	pkg:pypi/jinja2

Aliases

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "jinja2",
        "purl": "pkg:pypi/jinja2"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.0.0"
            },
            {
              "fixed": "3.1.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.0.0",
        "3.0.1",
        "3.0.2",
        "3.0.3",
        "3.1.0",
        "3.1.1",
        "3.1.2",
        "3.1.3",
        "3.1.4"
      ]
    }
  ],
  "aliases": [
    "CVE-2024-56201",
    "GHSA-gmj6-6f8f-6699"
  ],
  "details": "A bug in the Jinja compiler allows an attacker that controls both the content and filename of a template to execute arbitrary Python code, regardless of if Jinja\u0027s sandbox is used.\n\nTo exploit the vulnerability, an attacker needs to control both the filename and the contents of a template. Whether that is the case depends on the type of application using Jinja. This vulnerability impacts users of applications which execute untrusted templates where the template author can also choose the template filename.",
  "id": "PYSEC-2026-1472",
  "modified": "2026-07-07T17:24:22.034973Z",
  "published": "2026-07-07T14:34:47.677447Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/pallets/jinja/security/advisories/GHSA-gmj6-6f8f-6699"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-56201"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pallets/jinja/issues/1792"
    },
    {
      "type": "FIX",
      "url": "https://github.com/pallets/jinja/commit/767b23617628419ae3709ccfb02f9602ae9fe51f"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/pallets/jinja"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pallets/jinja/releases/tag/3.1.5"
    },
    {
      "type": "PACKAGE",
      "url": "https://pypi.org/project/jinja2"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-gmj6-6f8f-6699"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Jinja has a sandbox breakout through malicious filenames"
}

CVE-2024-56201 (GCVE-0-2024-56201)

Vulnerability from cvelistv5 – Published: 2024-12-23 15:37 – Updated: 2025-02-18 21:47

Title

Jinja has a sandbox breakout through malicious filenames

Summary

Jinja is an extensible templating engine. In versions on the 3.x branch prior to 3.1.5, a bug in the Jinja compiler allows an attacker that controls both the content and filename of a template to execute arbitrary Python code, regardless of if Jinja's sandbox is used. To exploit the vulnerability, an attacker needs to control both the filename and the contents of a template. Whether that is the case depends on the type of application using Jinja. This vulnerability impacts users of applications which execute untrusted templates where the template author can also choose the template filename. This vulnerability is fixed in 3.1.5.

Severity

5.4 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-12-24 01:44 UTC

CWE

CWE-150 - Improper Neutralization of Escape, Meta, or Control Sequences

Assigner

GitHub_M mitre root

References

4 references

URL	Tags
https://github.com/pallets/jinja/security/advisor…	x_refsource_CONFIRM
https://github.com/pallets/jinja/issues/1792	x_refsource_MISC
https://github.com/pallets/jinja/commit/767b23617…	x_refsource_MISC
https://github.com/pallets/jinja/releases/tag/3.1.5	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
pallets	jinja	Affected: >= 3.0.0, < 3.1.5

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2024-56201",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-12-24T01:44:55.825619Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-02-18T21:47:42.763Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "jinja",
          "vendor": "pallets",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 3.0.0, \u003c 3.1.5"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Jinja is an extensible templating engine. In versions on the 3.x branch prior to 3.1.5, a bug in the Jinja compiler allows an attacker that controls both the content and filename of a template to execute arbitrary Python code, regardless of if Jinja\u0027s sandbox is used. To exploit the vulnerability, an attacker needs to control both the filename and the contents of a template. Whether that is the case depends on the type of application using Jinja. This vulnerability impacts users of applications which execute untrusted templates where the template author can also choose the template filename. This vulnerability is fixed in 3.1.5."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "PRESENT",
            "attackVector": "LOCAL",
            "baseScore": 5.4,
            "baseSeverity": "MEDIUM",
            "privilegesRequired": "LOW",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "PASSIVE",
            "vectorString": "CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-150",
              "description": "CWE-150: Improper Neutralization of Escape, Meta, or Control Sequences",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-01-08T16:06:29.739Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/pallets/jinja/security/advisories/GHSA-gmj6-6f8f-6699",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/pallets/jinja/security/advisories/GHSA-gmj6-6f8f-6699"
        },
        {
          "name": "https://github.com/pallets/jinja/issues/1792",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/pallets/jinja/issues/1792"
        },
        {
          "name": "https://github.com/pallets/jinja/commit/767b23617628419ae3709ccfb02f9602ae9fe51f",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/pallets/jinja/commit/767b23617628419ae3709ccfb02f9602ae9fe51f"
        },
        {
          "name": "https://github.com/pallets/jinja/releases/tag/3.1.5",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/pallets/jinja/releases/tag/3.1.5"
        }
      ],
      "source": {
        "advisory": "GHSA-gmj6-6f8f-6699",
        "discovery": "UNKNOWN"
      },
      "title": "Jinja has a sandbox breakout through malicious filenames"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2024-56201",
    "datePublished": "2024-12-23T15:37:36.110Z",
    "dateReserved": "2024-12-18T18:29:25.896Z",
    "dateUpdated": "2025-02-18T21:47:42.763Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

GHSA-GMJ6-6F8F-6699

Vulnerability from github – Published: 2024-12-23 17:54 – Updated: 2025-01-08 16:06

Summary

Jinja has a sandbox breakout through malicious filenames

Details

A bug in the Jinja compiler allows an attacker that controls both the content and filename of a template to execute arbitrary Python code, regardless of if Jinja's sandbox is used.

Severity

8.8 (High)


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

5.4 (Medium)


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

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 3.1.4"
      },
      "package": {
        "ecosystem": "PyPI",
        "name": "jinja2"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.0.0"
            },
            {
              "fixed": "3.1.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2024-56201"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-150"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2024-12-23T17:54:12Z",
    "nvd_published_at": "2024-12-23T16:15:07Z",
    "severity": "MODERATE"
  },
  "details": "A bug in the Jinja compiler allows an attacker that controls both the content and filename of a template to execute arbitrary Python code, regardless of if Jinja\u0027s sandbox is used.\n\nTo exploit the vulnerability, an attacker needs to control both the filename and the contents of a template. Whether that is the case depends on the type of application using Jinja. This vulnerability impacts users of applications which execute untrusted templates where the template author can also choose the template filename.",
  "id": "GHSA-gmj6-6f8f-6699",
  "modified": "2025-01-08T16:06:01Z",
  "published": "2024-12-23T17:54:12Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/pallets/jinja/security/advisories/GHSA-gmj6-6f8f-6699"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-56201"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pallets/jinja/issues/1792"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pallets/jinja/commit/767b23617628419ae3709ccfb02f9602ae9fe51f"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/pallets/jinja"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pallets/jinja/releases/tag/3.1.5"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Jinja has a sandbox breakout through malicious filenames"
}

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.

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

PYSEC-2026-1472

CVE-2024-56201 (GCVE-0-2024-56201)

GHSA-GMJ6-6F8F-6699

Tags

Sightings

Nomenclature

Related by attack behaviour