CVE-2020-9482Network attack vector

Post-logout API access via unrevoked bearer token

Published Apr 28, 2020 · Updated Aug 4, 2024

Insufficient session expiration in Apache NiFi Registry 0.1.0 through 0.5.0 allows remote attackers to retain API access after logout. The logout path removes the client-side token but does not invoke a server endpoint to delete its JWT key, leaving the bearer token valid. The issue requires non-PKI authentication and possession of an issued token; replay retains that user's authorized API access for up to 12 hours.

CVSS severity6.5
Medium
EPSS probability2.67%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Insufficient session expiration in Apache NiFi Registry 0.1.0 through 0.5.0 allows remote attackers to retain API access after logout. The logout path removes the client-side token but does not invoke a server endpoint to delete its JWT key, leaving the bearer token valid. The issue requires non-PKI authentication and possession of an issued token; replay retains that user's authorized API access for up to 12 hours.

The record

CVE
CVE-2020-9482
Published
Apr 28, 2020
Updated
Aug 4, 2024
Vendor
The Apache Software Foundation
Product
Apache NiFi Registry
Classifications
CWE-613, T1078
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 28, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0.1.0 to 0.5.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

The Apache Software Foundation · Apache NiFi Registryversion=0.1.0 to 0.5.0

Published CVSS scores

6.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
6.4NIST NVDAV:N/AC:L/Au:N/C:P/I:P/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-613Insufficient Session Expiration
T1078Valid Accounts

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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