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Vulnerability record · CVE-2017-5636 · published 19 October 2017

CVE-2017-5636: Apache nifi injection vulnerability

Apache · Nifi

In 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 injection attack where a carefully crafted username could impersonate another user and gain their permissions on a replicated request to another node.

9.8 CVSS 3.0 Critical EPSS 3.6% · top 11.0% CWE-74 · Injection
9.8CVSS 3.0 base score, v2 7.5
3.6%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

Description

In 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 injection attack where a carefully crafted username could impersonate another user and gain their permissions on a replicated request to another node.

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

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

References

LinkTags
http://www.securityfocus.com/bid/96731 Third Party AdvisoryVDB Entry
https://nifi.apache.org/security.html#CVE-2017-5636 Issue TrackingMitigationVendor Advisory
http://www.securityfocus.com/bid/96731 Third Party AdvisoryVDB Entry
https://nifi.apache.org/security.html#CVE-2017-5636 Issue TrackingMitigationVendor Advisory

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Related vulnerabilities

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

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Source: NIST National Vulnerability Database (record CVE-2017-5636), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.