[GHSA-799x-qp47-8qwq] Apache Airflow's EmailOperator and the underlying ...

advisories/unreviewed/2026/06/GHSA-799x-qp47-8qwq/GHSA-799x-qp47-8qwq.json

@@ -1,19 +1,40 @@
 {
   "schema_version": "1.4.0",
   "id": "GHSA-799x-qp47-8qwq",
-  "modified": "2026-06-02T18:31:28Z",
+  "modified": "2026-06-02T18:32:36Z",
   "published": "2026-06-01T09:31:15Z",
   "aliases": [
     "CVE-2026-49267"
   ],
+  "summary": "apache-airflow: No certificate validation on SMTP STARTTLS connections in airflow.utils.email",
   "details": "Apache Airflow's EmailOperator and the underlying `airflow.utils.email` helpers established SMTP STARTTLS connections without verifying the remote certificate when the deployment used `[email] smtp_starttls=True` without `[email] smtp_ssl`. An attacker positioned between the worker and the configured SMTP server (network MITM — typical hostile-network attack-surface for environments where the SMTP relay sits outside the worker's trust boundary) could present a self-signed certificate, have the worker complete the STARTTLS handshake silently, and capture the SMTP AUTH credentials and message contents the worker forwarded.\n\nThis CVE covers the **core apache-airflow side** of the same root cause already covered for the SMTP provider by `CVE-2026-41016` (published 2026-04-27, covering `apache-airflow-providers-smtp`). Users who already applied the SMTP-provider fix from CVE-2026-41016 should additionally upgrade `apache-airflow` to 3.2.2 or later to cover the core-side path through `airflow.utils.email`. Affects deployments configured with `smtp_starttls=True` and `smtp_ssl=False` where the SMTP relay is reachable across a less-trusted network segment than the worker.\n\nUsers are advised to upgrade to `apache-airflow` 3.2.2 or later.",
   "severity": [
     {
       "type": "CVSS_V3",
       "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"
     }
   ],
-  "affected": [],
+  "affected": [
+    {
+      "package": {
+        "ecosystem": "PyPI",
+        "name": "apache-airflow"
+      },
+      "ranges": [
+        {
+          "type": "ECOSYSTEM",
+          "events": [
+            {
+              "introduced": "2.0.0"
+            },
+            {
+              "fixed": "3.2.2"
+            }
+          ]
+        }
+      ]
+    }
+  ],
   "references": [
     {
       "type": "ADVISORY",
@@ -23,6 +44,10 @@
       "type": "WEB",
       "url": "https://github.com/apache/airflow/pull/65346"
     },
+    {
+      "type": "PACKAGE",
+      "url": "https://github.com/apache/airflow"
+    },
     {
       "type": "WEB",
       "url": "https://lists.apache.org/thread/6v2ds757000msmjmovnnqryqzks83ps0"