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CVE-2020-9482

22
FAUCET Score

CVE-2020-9482 is a medium-severity vulnerability affecting Apache NiFi Registry versions 0.1.0 to 0.5.0 when not using PKI for authentication. It allows an attacker to reuse a client-side authentication token for up to 12 hours after a user logs out, enabling unauthorized API requests. The vulnerability has a CVSS score of 6.5, indicating a network-based attack with low complexity, potentially leading to limited confidentiality and integrity impacts. There is no evidence of active exploitation, public exploit code, or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 0.1.0, <= 0.5.0CPE matchmatch criteria
cpe:2.3:a:apache:nifi_registry:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.5MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
2.5
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.61%
Probability of exploitation in next 30 days
EPSS Percentile
83.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0261 is in the 76th percentile among its peer group of 23,701 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

mavenpatch availablevia ghsa
Product: org.apache.nifi.registry:nifi-registry-web-apiFixed in: 0.7.0

Vendor Advisories (1)

mavenGHSA-rcwj-2hj2-vmjjmedium

Insufficient Session Expiration in Apache NiFi Registry

Feb 9, 2022

References

nifi.apache.org / registry-security.html
PatchVendor Advisory