PatchTheCEVCVE-2026-68981: Apache NiFi 1.5.0 through 2.10.0 support gzip-encoded HTTP requests for the application REST API using a Jerse
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HIGH 7.5REMOTEWATCHLISTUPGRADE
CVE-2026-68981 is a high-severity flaw (CVSS 7.5) affecting nifi. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
Apache NiFi 1.5.0 through 2.10.0 support gzip-encoded HTTP requests for the application REST API using a Jersey encoding filter. The framework enforced a configurable maximum request size on the compressed payload rather than the decompressed output, allowing a malicious client to send crafted requests that could consume excessive amounts of memory. Upgrading to Apache NiFi 2.11.0 is the recommended mitigation, which relocates response compressio
Why this priority
- High severity
- Remotely exploitable, no login, no user action
- On your watchlist
A fixed release or distro patch exists.
Risk facts
| CVSS score | 7.5 (High) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 0.7% (top 46%) |
| CISA exploited list | No |
| Weakness | CWE-409 |
| 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: >= 1.5.0 and < 2.11.0
Fixed in: 2.11.0
Safe to downgrade to: a release before 1.5.0
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 1.5.0 (Debian / Ubuntu)
apt-cache madison nifi
sudo apt install nifi=<VERSION_BEFORE_1.5.0>
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_1.5.0>
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.
Exact fixes by distribution
Fedora 46 · python-streamlink · FIXED · 8.6.2-1.fc46 · FEDORA-2026-a56fcfdc08 · source
sudo dnf upgrade --advisory=FEDORA-2026-a56fcfdc08
Fedora ELN · valgrind · FIXED · 3.28.0-1.eln159 · FEDORA-2026-c593ef1d15 · source
sudo dnf upgrade --advisory=FEDORA-2026-c593ef1d15
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
- CVE-2026-68979 CRITICAL 9.8 UPGRADE Apache NiFI 1.10.0 through 2.10.0 provide a Parameter Context update REST API method that does not enforce aut
- CVE-2026-68980 CRITICAL 9.1 UPGRADE Apache NiFi 2.0.0 through 2.10.0 support creating, reading, and deleting Assets associated with Parameter Cont
- CVE-2026-62354 MEDIUM 4.3 UPGRADE Authorization handling for Parameter Context validation requests in Apache NiFi 1.10.0 through 2.10.0 allows c