PatchTheCEVCVE-2026-62354: Authorization handling for Parameter Context validation requests in Apache NiFi 1.10.0 through 2.10.0 allows c
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Routine
MEDIUM 4.3WATCHLISTUPGRADE
CVE-2026-62354 is a medium-severity flaw (CVSS 4.3) affecting nifi. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
Authorization handling for Parameter Context validation requests in Apache NiFi 1.10.0 through 2.10.0 allows clients with read access to submit proposed Parameter values. The proposed values override current configuration, enabling users with read access to invoke predefined component validation methods with alternative settings. Apache NiFi installations that do not implement different levels of authorization for viewing and modifying Parameter
Why this priority
- On your watchlist
A fixed release or distro patch exists.
Risk facts
| CVSS score | 4.3 (Medium) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | Low |
| User interaction | None |
| EPSS exploit chance | 0.5% (top 62%) |
| CISA exploited list | No |
| Weakness | CWE-863 |
| Published | 2026-08-03 |
| Last modified | 2026-10-23 |
Publisher (CNA): Apache Software Foundation · Vendor: apache
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
apache nifi UPGRADE
Affected: >= 1.10.0 and < 2.11.0
Fixed in: 2.11.0
Safe to downgrade to: a release before 1.10.0
1. Check installed version
apt-cache policy nifi || rpm -q nifi || nifi --version
2. UPGRADE to 2.11.0 (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 1.10.0 (Debian / Ubuntu)
apt-cache madison nifi
sudo apt install nifi=<VERSION_BEFORE_1.10.0>
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_1.10.0>
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.
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Related CVEs
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- CVE-2026-68981 HIGH 7.5 UPGRADE Apache NiFi 1.5.0 through 2.10.0 support gzip-encoded HTTP requests for the application REST API using a Jerse