Vulnerability Description
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 compression to Jetty Server and disables decompression of gzip-encoded HTTP requests.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Apache | Nifi | >= 1.5.0, < 2.11.0 |
Related Weaknesses (CWE)
References
- https://lists.apache.org/thread/vxrqn7poyf1wx6gdy7c0dxqfqkctjnggMailing ListVendor Advisory
- http://www.openwall.com/lists/oss-security/2026/08/03/13Mailing ListThird Party Advisory
FAQ
What is CVE-2026-68981?
CVE-2026-68981 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 compr...
How severe is CVE-2026-68981?
CVE-2026-68981 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-68981?
Check the references section above for vendor advisories and patch information. Affected products include: Apache Nifi.