CVE-2023-39441
Apache Airflow SMTP Provider, Apache Airflow IMAP Provider, Apache Airflow: SMTP/IMAP client components allowed MITM due to missing Certificate Validation
- Published
- Updated
- Reserved
- Assigned by
- apache
Description
Apache Airflow SMTP Provider before 1.3.0, Apache Airflow IMAP Provider before 3.3.0, and Apache Airflow before 2.7.0 are affected by the Validation of OpenSSL Certificate vulnerability. The default SSL context with SSL library did not check a server's X.509 certificate. Instead, the code accepted any certificate, which could result in the disclosure of mail server credentials or mail contents when the client connects to an attacker in a MITM position. Users are strongly advised to upgrade to Apache Airflow version 2.7.0 or newer, Apache Airflow IMAP Provider version 3.3.0 or newer, and Apache Airflow SMTP Provider version 1.3.0 or newer to mitigate the risk associated with this vulnerability
Timeline
ID reserved
By apache
- 21 days later
· 21 days later
Published
- 18 months later
· 18 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | Medium5.9 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N |
- EPSS (exploitation in 30 days)
- 0.80% · top 43% of all CVEs (7 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.9.
Weakness
Affected products
Apache Software Foundation · Apache Airflow SMTP Provider
- affected < 1.30
Apache Software Foundation · Apache Airflow IMAP Provider
- affected < 3.3.0
Apache Software Foundation · Apache Airflow
- affected < 2.7.0
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- PyPIapache-airflowGHSA-5f35-pq34-c87q (opens in a new tab)
- PyPIapache-airflow-providers-imapGHSA-5f35-pq34-c87q (opens in a new tab)
- PyPIapache-airflow-providers-smtpGHSA-5f35-pq34-c87q (opens in a new tab)
References (5)
- https://github.com/apache/airflow/pull/33075 (opens in a new tab)patchx_transferred
- https://github.com/apache/airflow/pull/33108 (opens in a new tab)patchx_transferred
- https://github.com/apache/airflow/pull/33070 (opens in a new tab)patchx_transferred
- https://lists.apache.org/thread/xzp4wgjg2b1o6ylk2595df8bstlbo1lb (opens in a new tab)vendor-advisoryx_transferred
- http://www.openwall.com/lists/oss-security/2023/08/23/2 (opens in a new tab)x_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-5f35-pq34-c87q (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2023-39441)Record last updated .