# CVE-2025-27555: apache-airflow β€” Fixed in 2.11.1 🐍 🐍 PyPI Not in CISA KEV MEDIUM severity # CVE-2025-27555 β€” apache-airflow MEDIUM [Fix: apache/airflow#61882](https://github.com/apache/airflow/pull/61882) CVE-2025-27555 is a medium-severity (CVSS 6.5) CWE-532 vulnerability in apache-airflow. A fix is available for apache-airflow β€” see the affected versions and patch details below. Apache Airflow: Connection Secrets not masked in UI when Connection are added via Airflow cli Also known asBIT-airflow-2025-27555[GHSA-8r55-rv5w-6pfm](/vulnerability/GHSA-8r55-rv5w-6pfm)PYSEC-2026-2347 Published Feb 24, 2026 Updated Oct 28, 2026 Affected 1 pkg Patched 1 / 1 Exploits None indexed Exploitation data as of Nov 9, 2026 Β· OSV.dev, NVD, FIRST.org (EPSS) ## Exploitation Status ### No confirmed exploitation observed yet - CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment. Exploitation and automatability from CISA’s SSVC triage for CVE-2025-27555. ## EPSS Exploitation Probability [via FIRST.org β†—](https://www.first.org/epss/) 0.4%probability of exploitation in next 30 days Lower Risk0.00% Lower risk than most CVEs36th percentile β€” riskier than 36% of all scored CVEsHighest risk 0.00%0.31%0.61%0.92%0.0%0.4%May 26Sep 26Nov 26 Probability of exploitation in the next 30 days, from [FIRST.org EPSS](https://www.first.org/epss/). ## How urgent is this, really ## Where this sits among everything scored ## Real-World Exposure 1 pkg affected 🐍`apache-airflow` Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects PyPI packages β€” download data is not available via public APIs for these ecosystems. ## Description Airflow versions before 2.11.1 have a vulnerability that allows authenticated users with audit log access to see sensitive values in audit logs which they should not see. When sensitive connection parameters were set via airflow CLI, values of those variables appeared in the audit log and were stored unencrypted in the Airflow database. While this risk is limited to users with audit log access, it is recommended to upgrade to Airflow 2.11.1 or a later version, which addresses this issue. Users who previously used the CLI to set connections should manually delete entries with those connection sensitive values from the log table. This is similar but not the same issue as CVE-2024-50378 ## Affected Packages 1 total 1 fixed Ecosystem Package Vulnerable range Fix 🐍PyPI `apache-airflow` all versions 2.11.1`pip install --upgrade 'apache-airflow==2.11.1'` ## Affected Products 1 product Β· 1 configurations Application `airflow`apache < 2.11.1 range ## Detection & mitigation playbook Open-source dependency 1. ### Detect Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for apache-airflow, including transitive dependencies β€” a direct dependency you never call can still pull in a vulnerable version. 2. ### Fix Update apache-airflow to 2.11.1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range β€” O3 confirms CVE-2025-27555 is resolved across your whole dependency graph. 3. ### Workarounds If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands. ## Frequently Asked Questions Airflow versions before 2.11.1 have a vulnerability that allows authenticated users with audit log access to see sensitive values in audit logs which they should not see. When sensitive connection parameters were set via airflow CLI, values of those variables appeared in the audit log and were stored unencrypted in the Airflow database. While this risk is limited to users with audit log access, it is recommended to upgrade to Airflow 2.11.1 or a later version, which addresses this issue. Users who previously used the CLI to set connections should manually delete entries with those connection s O3 Security Β· Impact-Aware SCA ### Is CVE-2025-27555 in your dependencies? Find it across PyPI, including transitive dependencies. [Scan my dependencies](/book-demo) [How O3 SCA works](/impact-aware-sca)