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CVE-2026-25917: Dag Authors, who normally should not be able to execute code in the webserver context could craft XCom payload

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This month
HIGH 7.2WATCHLISTUPGRADE

CVE-2026-25917 is a high-severity flaw (CVSS 7.2) affecting airflow. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Dag Authors, who normally should not be able to execute code in the webserver context could craft XCom payload causing the webserver to execute arbitrary code. Since Dag Authors are already highly trusted, severity of this issue is Low. Users are recommended to upgrade to Apache Airflow 3.2.0, which fixes the issue.

Why this priority

  • High severity
  • On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score7.2 (High)
Attack vectorNetwork (remote)
Attack complexityLow
Privileges neededHigh
User interactionNone
EPSS exploit chance0.8% (top 43%)
CISA exploited listNo
WeaknessCWE-502
Published2026-04-18
Last modified2026-10-26
Publisher (CNA): Apache Software Foundation · Vendor: apache

Share: LinkedIn · X · Reddit

Last updated 2026-10-26 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

apache airflow UPGRADE
Affected: < 3.2.0
Fixed in: 3.2.0
Safe to downgrade to: no unaffected older release
1. Check installed version
apt-cache policy airflow || rpm -q airflow || airflow --version
2. UPGRADE to 3.2.0 (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-2026-25917?

airflow: upgrade to 3.2.0. Exact commands for each OS are on this page.

Is CVE-2026-25917 being exploited?

CVE-2026-25917 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-2026-25917 affect?

CVE-2026-25917 affects airflow. Severity is high (CVSS 7.2). Dag Authors, who normally should not be able to execute code in the webserver context could craft XCom payload causing the webserver to execute arbitrary code. Since Dag Authors are already highly trusted, severity of this issue is Low. Us

How urgent is CVE-2026-25917?

Priority 44/100. High severity; On your watchlist

Software pages

Apache Airflow vulnerabilities

Related CVEs

References

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