CVE-2026-20189: Cisco Prime Infra Log File Download Auth Bypass
CVE-2026-20189 Published on May 6, 2026
Cisco Prime Infrastructure Information Disclosure Vulnerability
A vulnerability in the log file download functionality of Cisco Prime Infrastructure could allow an authenticated, remote attacker to download arbitrary log files from the server.
This vulnerability is due to insufficient authorization checks on the download service API. An attacker could exploit this vulnerability by submitting a crafted URL request to an affected device. A successful exploit could allow the attacker to download sensitive log files that they would otherwise not have authorization to access.
To exploit this vulnerability, the attacker must have valid credentials to access the web-based management interface of the affected device.
Vulnerability Analysis
CVE-2026-20189 can be exploited with network access, and requires small amount of user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have a small impact on confidentiality, a small impact on integrity and availability.
Weakness Type
What is an AuthZ Vulnerability?
The software does not perform an authorization check when an actor attempts to access a resource or perform an action.
CVE-2026-20189 has been classified to as an AuthZ vulnerability or weakness.
Products Associated with CVE-2026-20189
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Affected Versions
Cisco Prime Infrastructure:- Version 3.6.0 is affected.
- Version 3.7.0 is affected.
- Version 3.4.0 is affected.
- Version 3.3.0 is affected.
- Version 3.5.0 is affected.
- Version 3.2.0-FIPS is affected.
- Version 3.8.0-FED is affected.
- Version 3.9.0 is affected.
- Version 3.8.0 is affected.
- Version 3.10.0 is affected.
- Version 3.9.1 is affected.
- Version 3.8.1 is affected.
- Version 3.7.1 is affected.
- Version 3.5.1 is affected.
- Version 3.4.2 is affected.
- Version 3.3.1 is affected.
- Version 3.2.1 is affected.
- Version 3.2.2 is affected.
- Version 3.4.1 is affected.
- Version 3.10.2 is affected.
- Version 3.10.3 is affected.
- Version 3.10 is affected.
- Version 3.10.1 is affected.
- Version 3.7.1 Update 03 is affected.
- Version 3.7.1 Update 04 is affected.
- Version 3.7.1 Update 06 is affected.
- Version 3.7.1 Update 07 is affected.
- Version 3.8.1 Update 01 is affected.
- Version 3.8.1 Update 02 is affected.
- Version 3.8.1 Update 03 is affected.
- Version 3.8.1 Update 04 is affected.
- Version 3.9.1 Update 01 is affected.
- Version 3.9.1 Update 02 is affected.
- Version 3.9.1 Update 03 is affected.
- Version 3.9.1 Update 04 is affected.
- Version 3.10 Update 01 is affected.
- Version 3.4.2 Update 01 is affected.
- Version 3.6.0 Update 04 is affected.
- Version 3.6.0 Update 02 is affected.
- Version 3.6.0 Update 03 is affected.
- Version 3.6.0 Update 01 is affected.
- Version 3.5.1 Update 03 is affected.
- Version 3.5.1 Update 01 is affected.
- Version 3.5.1 Update 02 is affected.
- Version 3.7.0 Update 03 is affected.
- Version 3.8.0 Update 01 is affected.
- Version 3.8.0 Update 02 is affected.
- Version 3.7.1 Update 01 is affected.
- Version 3.7.1 Update 02 is affected.
- Version 3.7.1 Update 05 is affected.
- Version 3.9.0 Update 01 is affected.
- Version 3.3.0 Update 01 is affected.
- Version 3.4.1 Update 02 is affected.
- Version 3.4.1 Update 01 is affected.
- Version 3.5.0 Update 03 is affected.
- Version 3.5.0 Update 01 is affected.
- Version 3.5.0 Update 02 is affected.
- Version 3.10.4 is affected.
- Version 3.10.4 Update 01 is affected.
- Version 3.10.4 Update 02 is affected.
- Version 3.10.4 Update 03 is affected.
- Version 3.10.5 is affected.
- Version 3.10.6 is affected.
- Version 3.10.6 Update 01 is affected.
- Version 3.10.6 Update 02 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.