{"id":10709,"date":"2026-02-17T10:04:58","date_gmt":"2026-02-17T10:04:58","guid":{"rendered":"https:\/\/serisec.com\/index.php\/2026\/02\/17\/apache-nifi-vulnerability-enables-authorization-bypass\/"},"modified":"2026-02-17T10:04:58","modified_gmt":"2026-02-17T10:04:58","slug":"apache-nifi-vulnerability-enables-authorization-bypass","status":"publish","type":"post","link":"https:\/\/serisec.com\/index.php\/2026\/02\/17\/apache-nifi-vulnerability-enables-authorization-bypass\/","title":{"rendered":"Apache NiFi Vulnerability Enables Authorization Bypass"},"content":{"rendered":"

Apache NiFi Vulnerability Enables Authorization Bypass
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A newly disclosed high-severity vulnerability in Apache NiFi exposes systems to an authorization bypass that could allow lower-privileged users to modify restricted components<\/a>.<\/p>\n

Tracked as\u00a0CVE-2026-25903, the flaw impacts Apache NiFi versions\u00a01.1.0 through 2.7.2\u00a0and has been fixed in version\u00a02.8.0.<\/p>\n

According to the Apache NiFi security advisory, the issue arises from\u00a0missing authorization checks\u00a0when updating configuration properties of extension components annotated as\u00a0Restricted<\/em>.<\/p>\n

These restricted components require additional privileges to be added to the data flow configuration, ensuring that only trusted users can modify sensitive processing logic.<\/p>\n

\n\n\n\n\n\n
CVE ID<\/th>\nDescription<\/th>\nAffected Versions<\/th>\nSeverity<\/th>\n<\/tr>\n<\/thead>\n
CVE-2026-25903<\/strong><\/td>\nMissing authorization checks in Apache NiFi allow low-privileged users to modify restricted components.<\/td>\n1.1.0\u20132.7.2<\/td>\nHigh<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n

However, due to a flaw in the framework\u2019s authorization model, once a restricted component was added by a privileged user, a less privileged user could still alter its configuration parameters without proper validation.<\/p>\n

This design loophole effectively bypassed<\/a> intended permission boundaries, giving limited users unintended access to modify sensitive operations within a NiFi workflow.<\/p>\n

Attackers exploiting this vulnerability could tamper with data flow configurations, trigger unsafe system commands, or alter process logic in environments that rely on restricted components.<\/p>\n

The vulnerability was responsibly reported by\u00a0David Handermann<\/a>\u00a0and categorized as\u00a0High severity\u00a0by Apache\u2019s Project Management Committee based on CVSS evaluation.<\/p>\n

The NiFi team emphasized that the exploitation risk depends on how authorization levels are implemented.<\/p>\n

In environments with authorization levels, installations without distinct privilege levels for restricted components experience reduced exposure.<\/p>\n

Apache NiFi is widely used for building data flow automation pipelines<\/a>, making this flaw particularly relevant for organizations handling sensitive or regulated data streams.<\/p>\n

Users are strongly advised to\u00a0upgrade to NiFi 2.8.0\u00a0or later to ensure that proper authorization is enforced across all restricted component updates.<\/p>\n

Apache encourages responsible vulnerability disclosure through its private security mailing list at\u00a0security@nifi.apache.org and urges users not to disclose technical details publicly until a verified remediation is released.<\/p>\n

Follow us on Google News<\/a>, LinkedIn<\/a>, and X<\/a> for daily cybersecurity updates. Contact us<\/a> to feature your stories.<\/strong><\/p>\n

The post Apache NiFi Vulnerability Enables Authorization Bypass<\/a> appeared first on Cyber Security News<\/a>.<\/p>\n<\/div>\n

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Apache NiFi Vulnerability Enables Authorization Bypass A newly disclosed high-severity vulnerability in Apache NiFi exposes systems to an authorization bypass that could allow lower-privileged users to modify restricted components. Tracked as\u00a0CVE-2026-25903, the flaw impacts Apache NiFi versions\u00a01.1.0 through 2.7.2\u00a0and has been fixed in version\u00a02.8.0. According to the Apache NiFi security advisory, the issue arises from\u00a0missing […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[803,129,63,131,648],"tags":[130],"class_list":["post-10709","post","type-post","status-publish","format-standard","hentry","category-apache","category-cyber-security","category-cyber-security-news","category-vulnerability","category-vulnerability-news","tag-cyber-security-news"],"_links":{"self":[{"href":"https:\/\/serisec.com\/index.php\/wp-json\/wp\/v2\/posts\/10709"}],"collection":[{"href":"https:\/\/serisec.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/serisec.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/serisec.com\/index.php\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/serisec.com\/index.php\/wp-json\/wp\/v2\/comments?post=10709"}],"version-history":[{"count":0,"href":"https:\/\/serisec.com\/index.php\/wp-json\/wp\/v2\/posts\/10709\/revisions"}],"wp:attachment":[{"href":"https:\/\/serisec.com\/index.php\/wp-json\/wp\/v2\/media?parent=10709"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/serisec.com\/index.php\/wp-json\/wp\/v2\/categories?post=10709"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/serisec.com\/index.php\/wp-json\/wp\/v2\/tags?post=10709"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}