CVE-2026-86462: Apache Airflow FAB provider: changing a user's password through the Admin user-edit PATCH endpoint does not in

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CRITICAL 9.1REMOTEWATCHLISTUPGRADE

CVE-2026-86462 is a critical-severity flaw (CVSS 9.1) affecting apache-airflow-providers-fab. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Apache Airflow FAB provider: changing a user's password through the Admin user-edit PATCH endpoint does not invalidate that user's existing database-backed sessions. An attacker who already holds a copy of the victim's session cookie keeps full access as that user after the password change, so the password reset does not evict them. Affects deployments using the FAB auth manager with database-backed sessions; an administrator (or the user themsel

Why this priority

Critical severity
CISA SSVC: automatable with total technical impact
Remotely exploitable, no login, no user action
On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	9.1 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.8% (top 43%)
CISA exploited list	No
Weakness	CWE-613
Published	2026-09-16
Last modified	2026-09-18

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

Last updated 2026-09-18 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-09-16 09:17 UTCPublished CVE record published
2026-09-18 14:29 UTCUpdated Record last modified

apache apache-airflow-providers-fab UPGRADE

Affected: >= 3.2.0 and < 3.9.0

Fixed in: 3.9.0

Safe to downgrade to: a release before 3.2.0

1. Check installed version

apt-cache policy apache-airflow-providers-fab || rpm -q apache-airflow-providers-fab || apache-airflow-providers-fab --version

2. UPGRADE to 3.9.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade apache-airflow-providers-fab

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade apache-airflow-providers-fab

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 3.2.0 (Debian / Ubuntu)

apt-cache madison apache-airflow-providers-fab sudo apt install apache-airflow-providers-fab=<VERSION_BEFORE_3.2.0> sudo apt-mark hold apache-airflow-providers-fab

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list apache-airflow-providers-fab sudo dnf downgrade apache-airflow-providers-fab-<VERSION_BEFORE_3.2.0> sudo dnf versionlock add apache-airflow-providers-fab

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Exact fixes by distribution

Fedora 46 · ddnet · FIXED · 20.2-1.fc46 · FEDORA-2026-6991b4ab14 · source

sudo dnf upgrade --advisory=FEDORA-2026-6991b4ab14

Fedora ELN · libplacebo · FIXED · 7.360.1-5.eln159 · FEDORA-2026-92226f221e · source

sudo dnf upgrade --advisory=FEDORA-2026-92226f221e

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-2026-86462?

apache-airflow-providers-fab: upgrade to 3.9.0. Exact commands for each OS are on this page.

Is CVE-2026-86462 being exploited?

CVE-2026-86462 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-2026-86462 affect?

CVE-2026-86462 affects apache-airflow-providers-fab. Severity is critical (CVSS 9.1). Apache Airflow FAB provider: changing a user's password through the Admin user-edit PATCH endpoint does not invalidate that user's existing database-backed sessions. An attacker who already holds a copy of the victim's session cookie keeps

How urgent is CVE-2026-86462?

Priority 59/100. Critical severity; CISA SSVC: automatable with total technical impact; Remotely exploitable, no login, no user action; On your watchlist

Software pages

Apache Airflow vulnerabilities

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References

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