How severe is CVE-2020-9482?

CVE-2020-9482 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2020-9482 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-9482?

CVE-2020-9482 affects Apache Nifi Registry. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-9482?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2020-9482 published?

CVE-2020-9482 was published on 2020-04-28 and last updated on 2026-06-17.

CVE-2020-9482

CVE-2020-9482 is a medium-severity vulnerability in Apache Nifi Registry with a CVSS 3.x base score of 6.5. 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-613.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 6.4
EPSS exploit prediction: 3% (84th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-613
Affected product: Apache Nifi Registry
Published: 2020-04-28
Last modified: 2026-06-17

Description

If NiFi Registry 0.1.0 to 0.5.0 uses an authentication mechanism other than PKI, when the user clicks Log Out, NiFi Registry invalidates the authentication token on the client side but not on the server side. This permits the user's client-side token to be used for up to 12 hours after logging out to make API requests to NiFi Registry.

Frequently asked questions

What is CVE-2020-9482?: If NiFi Registry 0.1.0 to 0.5.0 uses an authentication mechanism other than PKI, when the user clicks Log Out, NiFi Registry invalidates the authentication token on the client side but not on the server side. This permits the user's client-side token to be used for up to 12 hours after logging out to make API requests to NiFi Registry.
How severe is CVE-2020-9482?: CVE-2020-9482 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2020-9482 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-9482?: CVE-2020-9482 affects Apache Nifi Registry. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-9482?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-9482 published?: CVE-2020-9482 was published on 2020-04-28 and last updated on 2026-06-17.

References

https://nifi.apache.org/registry-security.html#CVE-2020-9482

Affected products (1)

cpe:2.3:a:apache:nifi_registry:*:*:*:*:*:*:*:*

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