Vulnerability details
CVE-2026-68981
Apache Software Foundation Apache NiFi
Apache NiFi: Uncontrolled Resource Consumption through Decompression of HTTP Requests
CVSS 4.0
8.8High
Official 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 scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 8.8High | 4.0 | CVEProject cvelistV5 (CNA) (apache) | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N/S:P/AU:Y/R:U/V:C/RE:M/U:Amber |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Apache Software Foundation | Apache NiFi | 1.5.0 ≤ v ≤ 2.10.0 | CVEProject cvelistV5 (CNA) |
References and advisories
2
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Details
- Published
- 2026-08-03
- Last updated
- 2026-08-04
- State
- Published
- Assigner (CNA)
- apache
Exploit prediction (EPSS)
0.74%
Probability of exploitation in 30 days
54.7%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- Yes
- Exploitation
- None
- Technical impact
- Partial
Weaknesses (CWE)
- CWE-409Improper Handling of Highly Compressed Data (Data Amplification)