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CVE-2026-49487: In Apache Airflow before 3.3.0, the REST API task-instance detail and list endpoints returned a deferred task'

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MEDIUM 6.5WATCHLISTUPGRADE

CVE-2026-49487 is a medium-severity flaw (CVSS 6.5) affecting airflow. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

In Apache Airflow before 3.3.0, the REST API task-instance detail and list endpoints returned a deferred task's trigger kwargs without masking. When a deferred operator passed a secret (for example a provider API key) into its trigger, any authenticated user with DAG-scoped task-instance read access for that DAG could read that secret in clear text while the task was deferred. Users should upgrade to apache-airflow 3.3.0 or later, which masks sen

Why this priority

  • On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score6.5 (Medium)
Attack vectorNetwork (remote)
Attack complexityLow
Privileges neededLow
User interactionNone
EPSS exploit chance0.7% (top 49%)
CISA exploited listNo
WeaknessCWE-200
Published2026-07-07
Last modified2026-10-25
Publisher (CNA): Apache Software Foundation · Vendor: apache

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Last updated 2026-10-25 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

apache airflow UPGRADE
Affected: < 3.3.0
Fixed in: 3.3.0
Safe to downgrade to: no unaffected older release
1. Check installed version
apt-cache policy airflow || rpm -q airflow || airflow --version
2. UPGRADE to 3.3.0 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade airflow
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade airflow
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-49487?

airflow: upgrade to 3.3.0. Exact commands for each OS are on this page.

Is CVE-2026-49487 being exploited?

CVE-2026-49487 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-49487 affect?

CVE-2026-49487 affects airflow. Severity is medium (CVSS 6.5). In Apache Airflow before 3.3.0, the REST API task-instance detail and list endpoints returned a deferred task's trigger kwargs without masking. When a deferred operator passed a secret (for example a provider API key) into its trigger, any

How urgent is CVE-2026-49487?

Priority 41/100. On your watchlist

Software pages

Apache Airflow vulnerabilities

Related CVEs

References

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