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CVE-2026-44911: Authorization handling for component configuration verification requests in Apache NiFi 1.15.0 through 2.9.0 a

38
Routine
MEDIUM 6.3WATCHLISTUPGRADE

CVE-2026-44911 is a medium-severity flaw (CVSS 6.3) affecting nifi. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Authorization handling for component configuration verification requests in Apache NiFi 1.15.0 through 2.9.0 allows clients with read access to submit proposed configuration properties. The proposed properties override current configuration, enabling users with read access to invoke predefined verification methods with alternative settings. Apache NiFi installations that do not implement different levels of authorization for viewing and modifying

Why this priority

  • On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score6.3 (Medium)
Attack vectorNetwork (remote)
Attack complexityLow
Privileges neededLow
User interactionNone
EPSS exploit chance0.5% (top 56%)
CISA exploited listNo
WeaknessCWE-863
Published2026-06-22
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 nifi UPGRADE
Affected: >= 1.15.0 and < 2.10.0
Fixed in: 2.10.0
Safe to downgrade to: a release before 1.15.0
1. Check installed version
apt-cache policy nifi || rpm -q nifi || nifi --version
2. UPGRADE to 2.10.0 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade nifi
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade nifi
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 1.15.0 (Debian / Ubuntu)
apt-cache madison nifi sudo apt install nifi=<VERSION_BEFORE_1.15.0> sudo apt-mark hold nifi
3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)
dnf --showduplicates list nifi sudo dnf downgrade nifi-<VERSION_BEFORE_1.15.0> sudo dnf versionlock add nifi
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.
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-2026-44911?

nifi: upgrade to 2.10.0. Exact commands for each OS are on this page.

Is CVE-2026-44911 being exploited?

CVE-2026-44911 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-2026-44911 affect?

CVE-2026-44911 affects nifi. Severity is medium (CVSS 6.3). Authorization handling for component configuration verification requests in Apache NiFi 1.15.0 through 2.9.0 allows clients with read access to submit proposed configuration properties. The proposed properties override current configuration

How urgent is CVE-2026-44911?

Priority 38/100. On your watchlist

Related CVEs

References

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