How severe is CVE-2017-5635?

CVE-2017-5635 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2017-5635 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (88th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-5635?

CVE-2017-5635 primarily affects Apache Nifi. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2017-5635?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2017-5635 published?

CVE-2017-5635 was published on 2017-10-19 and last updated on 2026-06-17.

CVE-2017-5635

CVE-2017-5635 is a high-severity vulnerability in Apache Nifi with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-287.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 3% (88th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Apache Nifi
Published: 2017-10-19
Last modified: 2026-06-17

Description

In Apache NiFi before 0.7.2 and 1.x before 1.1.2 in a cluster environment, if an anonymous user request is replicated to another node, the originating node identity is used rather than the "anonymous" user.

Frequently asked questions

What is CVE-2017-5635?: In Apache NiFi before 0.7.2 and 1.x before 1.1.2 in a cluster environment, if an anonymous user request is replicated to another node, the originating node identity is used rather than the "anonymous" user.
How severe is CVE-2017-5635?: CVE-2017-5635 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2017-5635 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (88th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-5635?: CVE-2017-5635 primarily affects Apache Nifi. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2017-5635?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2017-5635 published?: CVE-2017-5635 was published on 2017-10-19 and last updated on 2026-06-17.

References

Affected products (4)

cpe:2.3:a:apache:nifi:0.7.0:*:*:*:*:*:*:*
cpe:2.3:a:apache:nifi:0.7.1:*:*:*:*:*:*:*
cpe:2.3:a:apache:nifi:1.1.0:*:*:*:*:*:*:*
cpe:2.3:a:apache:nifi:1.1.1:*:*:*:*:*:*:*

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Other CWE-287 (Improper Authentication) vulnerabilities

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