Vulnerability-Lookup

CVE-2026-25917 (GCVE-0-2026-25917)

Vulnerability from cvelistv5 – Published: 2026-04-18 06:20 – Updated: 2026-04-20 15:55

Title

Apache Airflow: API extra-links triggers XCom deserialization/class instantiation (Airflow 3.1.5)

Summary

Dag Authors, who normally should not be able to execute code in the webserver context could craft XCom payload causing the webserver to execute arbitrary code. Since Dag Authors are already highly trusted, severity of this issue is Low. Users are recommended to upgrade to Apache Airflow 3.2.0, which fixes the issue.

Severity ?

No CVSS data available.

CWE

CWE-502 - Deserialization of Untrusted Data

Assigner

apache

References

URL

Tags

	https://github.com/apache/airflow/pull/61641	patch
	https://lists.apache.org/thread/6whgpkqbh12rvpfmv…	vendor-advisory

Impacted products

	Vendor	Product	Version
	Apache Software Foundation	Apache Airflow	Affected: 0 , < 3.2.0 (semver)

Credits

Mahammad Huseynkhanli Amogh Desai

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2026-04-18T06:28:53.080Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "http://www.openwall.com/lists/oss-security/2026/04/17/9"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 9.8,
              "baseSeverity": "CRITICAL",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2026-25917",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-04-20T15:55:04.292922Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-04-20T15:55:27.837Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://pypi.python.org",
          "defaultStatus": "unaffected",
          "packageName": "apache-airflow",
          "product": "Apache Airflow",
          "vendor": "Apache Software Foundation",
          "versions": [
            {
              "lessThan": "3.2.0",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Mahammad Huseynkhanli"
        },
        {
          "lang": "en",
          "type": "remediation developer",
          "value": "Amogh Desai"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "Dag Authors, who normally should not be able to execute code in the webserver context could craft XCom payload causing the webserver to execute arbitrary code. Since Dag Authors are already highly trusted, severity of this issue is Low.\u003cbr\u003e\u003cbr\u003eUsers are recommended to upgrade to Apache Airflow 3.2.0, which fixes the issue.\u003cbr\u003e"
            }
          ],
          "value": "Dag Authors, who normally should not be able to execute code in the webserver context could craft XCom payload causing the webserver to execute arbitrary code. Since Dag Authors are already highly trusted, severity of this issue is Low.\n\nUsers are recommended to upgrade to Apache Airflow 3.2.0, which fixes the issue."
        }
      ],
      "metrics": [
        {
          "other": {
            "content": {
              "text": "low"
            },
            "type": "Textual description of severity"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-502",
              "description": "CWE-502: Deserialization of Untrusted Data",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-18T06:20:11.187Z",
        "orgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09",
        "shortName": "apache"
      },
      "references": [
        {
          "name": "Apache Airflow PR #61641 (fix)",
          "tags": [
            "patch"
          ],
          "url": "https://github.com/apache/airflow/pull/61641"
        },
        {
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://lists.apache.org/thread/6whgpkqbh12rvpfmvcg8b0vwlv4hq3po"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Apache Airflow: API extra-links triggers XCom deserialization/class instantiation (Airflow 3.1.5)",
      "x_generator": {
        "engine": "airflow-s/generate_cve_json.py"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09",
    "assignerShortName": "apache",
    "cveId": "CVE-2026-25917",
    "datePublished": "2026-04-18T06:20:11.187Z",
    "dateReserved": "2026-02-09T11:43:28.920Z",
    "dateUpdated": "2026-04-20T15:55:27.837Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-25917",
      "date": "2026-04-21",
      "epss": "0.00066",
      "percentile": "0.20303"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-25917\",\"sourceIdentifier\":\"security@apache.org\",\"published\":\"2026-04-18T07:16:09.347\",\"lastModified\":\"2026-04-21T14:44:13.557\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Dag Authors, who normally should not be able to execute code in the webserver context could craft XCom payload causing the webserver to execute arbitrary code. Since Dag Authors are already highly trusted, severity of this issue is Low.\\n\\nUsers are recommended to upgrade to Apache Airflow 3.2.0, which fixes the issue.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":9.8,\"baseSeverity\":\"CRITICAL\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":5.9}]},\"weaknesses\":[{\"source\":\"security@apache.org\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-502\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:apache:airflow:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"3.2.0\",\"matchCriteriaId\":\"98A505A1-464C-4895-A628-9D8BEA1458E4\"}]}]}],\"references\":[{\"url\":\"https://github.com/apache/airflow/pull/61641\",\"source\":\"security@apache.org\",\"tags\":[\"Issue Tracking\"]},{\"url\":\"https://lists.apache.org/thread/6whgpkqbh12rvpfmvcg8b0vwlv4hq3po\",\"source\":\"security@apache.org\",\"tags\":[\"Vendor Advisory\",\"Mailing List\"]},{\"url\":\"http://www.openwall.com/lists/oss-security/2026/04/17/9\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"http://www.openwall.com/lists/oss-security/2026/04/17/9\"}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2026-04-18T06:28:53.080Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 9.8, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"CRITICAL\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"HIGH\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-25917\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-04-20T15:55:04.292922Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-04-20T15:55:21.768Z\"}}], \"cna\": {\"title\": \"Apache Airflow: API extra-links triggers XCom deserialization/class instantiation (Airflow 3.1.5)\", \"source\": {\"discovery\": \"UNKNOWN\"}, \"credits\": [{\"lang\": \"en\", \"type\": \"finder\", \"value\": \"Mahammad Huseynkhanli\"}, {\"lang\": \"en\", \"type\": \"remediation developer\", \"value\": \"Amogh Desai\"}], \"metrics\": [{\"other\": {\"type\": \"Textual description of severity\", \"content\": {\"text\": \"low\"}}}], \"affected\": [{\"vendor\": \"Apache Software Foundation\", \"product\": \"Apache Airflow\", \"versions\": [{\"status\": \"affected\", \"version\": \"0\", \"lessThan\": \"3.2.0\", \"versionType\": \"semver\"}], \"packageName\": \"apache-airflow\", \"collectionURL\": \"https://pypi.python.org\", \"defaultStatus\": \"unaffected\"}], \"references\": [{\"url\": \"https://github.com/apache/airflow/pull/61641\", \"name\": \"Apache Airflow PR #61641 (fix)\", \"tags\": [\"patch\"]}, {\"url\": \"https://lists.apache.org/thread/6whgpkqbh12rvpfmvcg8b0vwlv4hq3po\", \"tags\": [\"vendor-advisory\"]}], \"x_generator\": {\"engine\": \"airflow-s/generate_cve_json.py\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"Dag Authors, who normally should not be able to execute code in the webserver context could craft XCom payload causing the webserver to execute arbitrary code. Since Dag Authors are already highly trusted, severity of this issue is Low.\\n\\nUsers are recommended to upgrade to Apache Airflow 3.2.0, which fixes the issue.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"Dag Authors, who normally should not be able to execute code in the webserver context could craft XCom payload causing the webserver to execute arbitrary code. Since Dag Authors are already highly trusted, severity of this issue is Low.\u003cbr\u003e\u003cbr\u003eUsers are recommended to upgrade to Apache Airflow 3.2.0, which fixes the issue.\u003cbr\u003e\", \"base64\": false}]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-502\", \"description\": \"CWE-502: Deserialization of Untrusted Data\"}]}], \"providerMetadata\": {\"orgId\": \"f0158376-9dc2-43b6-827c-5f631a4d8d09\", \"shortName\": \"apache\", \"dateUpdated\": \"2026-04-18T06:20:11.187Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-25917\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-04-20T15:55:27.837Z\", \"dateReserved\": \"2026-02-09T11:43:28.920Z\", \"assignerOrgId\": \"f0158376-9dc2-43b6-827c-5f631a4d8d09\", \"datePublished\": \"2026-04-18T06:20:11.187Z\", \"assignerShortName\": \"apache\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}

GHSA-6FFJ-2WG2-W45J

Vulnerability from github – Published: 2026-04-18 09:30 – Updated: 2026-04-20 18:31

Details

Users are recommended to upgrade to Apache Airflow 3.2.0, which fixes the issue.

Severity ?

9.8 (Critical)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-25917"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-502"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-04-18T07:16:09Z",
    "severity": "CRITICAL"
  },
  "details": "Dag Authors, who normally should not be able to execute code in the webserver context could craft XCom payload causing the webserver to execute arbitrary code. Since Dag Authors are already highly trusted, severity of this issue is Low.\n\nUsers are recommended to upgrade to Apache Airflow 3.2.0, which fixes the issue.",
  "id": "GHSA-6ffj-2wg2-w45j",
  "modified": "2026-04-20T18:31:45Z",
  "published": "2026-04-18T09:30:20Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-25917"
    },
    {
      "type": "WEB",
      "url": "https://github.com/apache/airflow/pull/61641"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread/6whgpkqbh12rvpfmvcg8b0vwlv4hq3po"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2026/04/17/9"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

FKIE_CVE-2026-25917

Vulnerability from fkie_nvd - Published: 2026-04-18 07:16 - Updated: 2026-04-21 14:44

Severity ?

9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Summary

References

URL	Tags
security@apache.org	https://github.com/apache/airflow/pull/61641	Issue Tracking
security@apache.org	https://lists.apache.org/thread/6whgpkqbh12rvpfmvcg8b0vwlv4hq3po	Vendor Advisory, Mailing List
af854a3a-2127-422b-91ae-364da2661108	http://www.openwall.com/lists/oss-security/2026/04/17/9	Mailing List, Third Party Advisory

Impacted products

	Vendor	Product	Version
	apache	airflow	*

JSON

To clipboard

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:apache:airflow:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "98A505A1-464C-4895-A628-9D8BEA1458E4",
              "versionEndExcluding": "3.2.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Dag Authors, who normally should not be able to execute code in the webserver context could craft XCom payload causing the webserver to execute arbitrary code. Since Dag Authors are already highly trusted, severity of this issue is Low.\n\nUsers are recommended to upgrade to Apache Airflow 3.2.0, which fixes the issue."
    }
  ],
  "id": "CVE-2026-25917",
  "lastModified": "2026-04-21T14:44:13.557",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 9.8,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.9,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-04-18T07:16:09.347",
  "references": [
    {
      "source": "security@apache.org",
      "tags": [
        "Issue Tracking"
      ],
      "url": "https://github.com/apache/airflow/pull/61641"
    },
    {
      "source": "security@apache.org",
      "tags": [
        "Vendor Advisory",
        "Mailing List"
      ],
      "url": "https://lists.apache.org/thread/6whgpkqbh12rvpfmvcg8b0vwlv4hq3po"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "http://www.openwall.com/lists/oss-security/2026/04/17/9"
    }
  ],
  "sourceIdentifier": "security@apache.org",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-502"
        }
      ],
      "source": "security@apache.org",
      "type": "Secondary"
    }
  ]
}

bit-airflow-2026-25917

Vulnerability from bitnami_vulndb

Published

2026-04-21 12:01

Modified

2026-04-21 12:33

Summary

Apache Airflow: API extra-links triggers XCom deserialization/class instantiation (Airflow 3.1.5)

Details

Users are recommended to upgrade to Apache Airflow 3.2.0, which fixes the issue.

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "Bitnami",
        "name": "airflow",
        "purl": "pkg:bitnami/airflow"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.2.0"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "severity": [
        {
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "type": "CVSS_V3"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-25917"
  ],
  "database_specific": {
    "cpes": [
      "cpe:2.3:a:apache:airflow:*:*:*:*:*:python:*:*"
    ],
    "severity": "Critical"
  },
  "details": "Dag Authors, who normally should not be able to execute code in the webserver context could craft XCom payload causing the webserver to execute arbitrary code. Since Dag Authors are already highly trusted, severity of this issue is Low.\n\nUsers are recommended to upgrade to Apache Airflow 3.2.0, which fixes the issue.",
  "id": "BIT-airflow-2026-25917",
  "modified": "2026-04-21T12:33:30.555Z",
  "published": "2026-04-21T12:01:27.677Z",
  "references": [
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2026/04/17/9"
    },
    {
      "type": "WEB",
      "url": "https://github.com/apache/airflow/pull/61641"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread/6whgpkqbh12rvpfmvcg8b0vwlv4hq3po"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-25917"
    }
  ],
  "schema_version": "1.6.2",
  "summary": "Apache Airflow: API extra-links triggers XCom deserialization/class instantiation (Airflow 3.1.5)"
}

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

CVE-2026-25917 (GCVE-0-2026-25917)

GHSA-6FFJ-2WG2-W45J

FKIE_CVE-2026-25917

bit-airflow-2026-25917

Vulnerability from bitnami_vulndb

Tags

Sightings

Nomenclature