Vulnerability record · CVE-2026-68981 · published 3 August 2026

CVE-2026-68981: Apache nifi vulnerability

Apache · Nifi

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.

8.8 CVSS 4.0 High EPSS 0.74% · top 47.2% CWE-409 · CWE-409

8.8CVSS 4.0 base score

0.74%EPSS exploitation probability, 30 days

NoNot in CISA KEV

1Affected product versions listed by NVD

2References

5 Aug 2026Last modified by NVD

Description

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:P/AU:Y/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

Nifi Apache

References

Link	Tags
https://lists.apache.org/thread/vxrqn7poyf1wx6gdy7c0dxqfqkctjngg	Mailing ListVendor Advisory
http://www.openwall.com/lists/oss-security/2026/08/03/13	Mailing ListThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2018-1309Apache nifi xml external entity (xxe) vulnerabilityApache NiFi External XML Entity issue in SplitXML processor. Malicious XML content could cause information disclosure or remote code execution. The f…EPSS 4.5%23 May 2018 9.8CVE-2017-15697Apache nifi improper input validation vulnerabilityA malicious X-ProxyContextPath or X-Forwarded-Context header containing external resources or embedded code could cause remote code execution. The fi…EPSS 4.8%23 Jan 2018 9.8CVE-2017-5636Apache nifi injection vulnerabilityIn Apache NiFi before 0.7.2 and 1.x before 1.1.2 in a cluster environment, the proxy chain serialization/deserialization is vulnerable to an injectio…EPSS 3.6%19 Oct 2017 8.8CVE-2023-36542Apache nifi code injection vulnerabilityApache NiFi 0.0.2 through 1.22.0 include Processors and Controller Services that support HTTP URL references for retrieving drivers, which allows an …EPSS 1.9%29 Jul 2023 8.8CVE-2023-34468Apache NiFi DBCP/HikariCP connection pool H2 JDBC code injectionThe DBCPConnectionPool and HikariCPConnectionPool Controller Services in Apache NiFi 0.0.2 through 1.21.0 allow an authenticated and authorized user …EPSS 62%analysed12 Jun 2023 8.8CVE-2022-33140Apache nifi os command injection vulnerabilityThe optional ShellUserGroupProvider in Apache NiFi 1.10.0 to 1.16.2 and Apache NiFi Registry 0.6.0 to 1.16.2 does not neutralize arguments for group …EPSS 3.7%15 Jun 2022 8.8CVE-2019-12421Apache nifi insufficient session expiration vulnerabilityWhen using an authentication mechanism other than PKI, when the user clicks Log Out in NiFi versions 1.0.0 to 1.9.2, NiFi invalidates the authenticat…EPSS 1.8%19 Nov 2019 8.7CVE-2026-25903Apache nifi missing authorization vulnerabilityApache NiFi 1.1.0 through 2.7.2 are missing authorization when updating configuration properties on extension components that have specific Required …EPSS 0.62%17 Feb 2026

Source: NIST National Vulnerability Database (record CVE-2026-68981), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.