CVE-2017-5636
Injection in 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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2017-5636- CVSS 3.0
- 9.8 Critical
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 7.5 High
AV:N/AC:L/Au:N/C:P/I:P/A:P - Weakness
- CWE-74
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2017-5636- Updated
- 2026-11-02
EUVDEUVD-2022-4425 No score
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.
- Record
EUVD-2022-4425- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-jrcc-7jf5-3pxg
Injection in 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.
- Record
GHSA-jrcc-7jf5-3pxg- CVSS 3.0
- 9.8 Critical
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-74
- Updated
- 2026-11-02
OSV
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.
- Record
CVE-2017-5636- CVSS 3.0
- 9.8 Critical
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVGHSA-jrcc-7jf5-3pxg
Injection in 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.
- Record
GHSA-jrcc-7jf5-3pxg- CVSS 3.0
- 9.8 Critical
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-74
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
org.apache.nifi:nifiMaven |
before 0.7.2 | 0.7.2 |
org.apache.nifi:nifiMaven |
1.0.0 up to 1.1.2 | 1.1.2 |
org.apache.nifi:nifiMaven |
before 0.7.2, plus listed versions 0.0.1-incubating0.0.2-incubating0.1.0-incubating0.2.0-incubating0.2.1 Show 9 moreShow less0.3.00.4.00.4.10.5.00.5.10.6.00.6.10.7.00.7.1 |
0.7.2 |
org.apache.nifi:nifiMaven |
1.0.0 up to 1.1.2, plus listed versions 1.0.11.1.01.1.1 |
1.1.2 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2017-5636 is a critical vulnerability (CVSS 9.8) in Apache Nifi, published October 19, 2017. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 3.60%, the 89th percentile. Fixed in org.apache.nifi:nifi 0.7.2.