CVE-2026-49296: Before apache-airflow 3.3.0, a user authorized to read one Dag could disclose the source of other Dags co-loca

Q: How do I fix CVE-2026-49296?

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

Q: Is CVE-2026-49296 being exploited?

CVE-2026-49296 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-49296 affect?

CVE-2026-49296 affects airflow. Severity is medium (CVSS 6.5). Before apache-airflow 3.3.0, a user authorized to read one Dag could disclose the source of other Dags co-located in the same source file. `GET /api/v2/dagSources/{dag_id}` — and the equivalent Dag-source view in the UI — returned the entir

Q: How urgent is CVE-2026-49296?

Priority 40/100. On your watchlist

This month

MEDIUM 6.5WATCHLISTUPGRADE

CVE-2026-49296 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.

Before apache-airflow 3.3.0, a user authorized to read one Dag could disclose the source of other Dags co-located in the same source file. `GET /api/v2/dagSources/{dag_id}` — and the equivalent Dag-source view in the UI — returned the entire source file without redacting Dags the caller was not authorized to read, bypassing per-DAG read authorization. Deployments that co-locate multiple Dags in a single file and rely on per-DAG access control to

Why this priority

On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.6% (top 52%)
CISA exploited list	No
Weakness	CWE-639
Published	2026-07-07
Last modified	2026-10-25

Publisher (CNA): Apache Software Foundation · Vendor: apache

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

Am I affected?

Timeline

2026-07-07 10:16 UTCPublished CVE record published
2026-10-25 20:10 UTCUpdated Record last modified

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-2026-49296?

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

Is CVE-2026-49296 being exploited?

CVE-2026-49296 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-2026-49296 affect?

CVE-2026-49296 affects airflow. Severity is medium (CVSS 6.5). Before apache-airflow 3.3.0, a user authorized to read one Dag could disclose the source of other Dags co-located in the same source file. `GET /api/v2/dagSources/{dag_id}` — and the equivalent Dag-source view in the UI — returned the entir

How urgent is CVE-2026-49296?

Priority 40/100. On your watchlist

Software pages

Apache Airflow vulnerabilities

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References

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