CVE-2026-81930

{"id": "CVE-2026-81930", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-81930", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-09-29T18:29:44.043559Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.3, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "LOW", "privilegesRequired": "LOW", "confidentialityImpact": "LOW"}, "impactScore": 3.4, "exploitabilityScore": 2.8}]}, "affected": [{"source": "security@apache.org", "affectedData": [{"vendor": "Apache Software Foundation", "product": "Apache Airflow Snowflake provider", "versions": [{"status": "affected", "version": "0", "lessThan": "6.18.0", "versionType": "semver"}], "packageURL": "pkg:pypi/apache-airflow-providers-snowflake", "packageName": "apache-airflow-providers-snowflake", "collectionURL": "https://pypi.python.org", "defaultStatus": "unaffected"}]}], "published": "2026-09-29T10:17:12.673", "references": [{"url": "https://github.com/apache/airflow/pull/72174", "tags": ["Issue Tracking", "Patch"], "source": "security@apache.org"}, {"url": "https://lists.apache.org/thread/324jm2mxd5x4nq85jfw1ostz94xwzrmk", "tags": ["Mailing List", "Vendor Advisory"], "source": "security@apache.org"}, {"url": "http://www.openwall.com/lists/oss-security/2026/09/29/12", "tags": ["Mailing List", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security@apache.org", "description": [{"lang": "en", "value": "CWE-522"}]}], "descriptions": [{"lang": "en", "value": "Apache Airflow's Snowflake provider did not validate the connection's `account` and `region` fields before interpolating them into request URLs. The SQL API endpoint is built as `https://{account}.snowflakecomputing.com/api/v2/statements`, so an `account` value containing `/`, `?` or `#` demotes the intended domain to a path, query or fragment and leaves the attacker in control of the request host.\n\nThe provider sends that request with an `Authorization: Bearer` header carrying a JWT minted from the connection's private key, or the configured OAuth or programmatic access token. A user who can edit the Snowflake connection but cannot read its secrets \u2014 Airflow gives connection-configuration users write-only access to stored credentials, and a `private_key_file` lives on the worker rather than in the connection \u2014 can therefore cause a valid token for the account to be delivered to a host of their choosing and replay it against the genuine Snowflake endpoint. No Dag-authoring ability is required: the attacker edits the connection and waits for an existing Dag to use it. The same unvalidated value was also used to build the OAuth token-request URL and the Cortex Agent base URL.\n\nAffects deployments where Snowflake connections are editable by users who are not trusted with the connection's credentials. Users are advised to upgrade to `apache-airflow-providers-snowflake` `6.18.0` or later, which rejects `account` and `region` values containing anything other than letters, digits, `.`, `_` and `-` in every URL the provider builds from them."}], "lastModified": "2026-10-07T19:57:31.443", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:apache:apache-airflow-providers-snowflake:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B4C395E0-0B4F-4262-8C93-A2C4630DC70F", "versionEndExcluding": "6.18.0"}], "operator": "OR"}]}], "sourceIdentifier": "security@apache.org"}