CVE-2026-20146
Cisco Identity Services Engine Path Traversal Vulnerability
Description
A vulnerability in Cisco Identity Services Engine (ISE) and Cisco ISE Passive Identity Connector (ISE-PIC) could allow an authenticated, remote attacker to perform path traversal attacks on the underlying operating system to either read or delete arbitrary files. To exploit this vulnerability, the attacker must have valid administrative credentials. This vulnerability is due to improper validation of user-supplied input. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected system. A successful exploit could allow the attacker to access sensitive files or delete arbitrary files on the affected system.
INFO
Published Date :
July 15, 2026, 5:16 p.m.
Last Modified :
July 15, 2026, 7:16 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
Affected Products
The following products are affected by CVE-2026-20146
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Update Cisco ISE to the latest version.
- Update Cisco ISE Passive Identity Connector.
- Restrict administrative access to authorized personnel.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-20146.
| URL | Resource |
|---|---|
| https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-traversal-xNt7wb2Y |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-20146 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-20146
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-20146 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-20146 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jul. 15, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-20146', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-07-15T17:58:07.078523Z'} -
New CVE Received by [email protected]
Jul. 15, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'Cisco', 'product': 'Cisco Identity Services Engine Software', 'versions': [{'status': 'affected', 'version': '3.1.0'}, {'status': 'affected', 'version': '3.1.0 p1'}, {'status': 'affected', 'version': '3.1.0 p3'}, {'status': 'affected', 'version': '3.1.0 p2'}, {'status': 'affected', 'version': '3.2.0'}, {'status': 'affected', 'version': '3.1.0 p4'}, {'status': 'affected', 'version': '3.1.0 p5'}, {'status': 'affected', 'version': '3.2.0 p1'}, {'status': 'affected', 'version': '3.1.0 p6'}, {'status': 'affected', 'version': '3.2.0 p2'}, {'status': 'affected', 'version': '3.1.0 p7'}, {'status': 'affected', 'version': '3.3.0'}, {'status': 'affected', 'version': '3.2.0 p3'}, {'status': 'affected', 'version': '3.2.0 p4'}, {'status': 'affected', 'version': '3.1.0 p8'}, {'status': 'affected', 'version': '3.2.0 p5'}, {'status': 'affected', 'version': '3.2.0 p6'}, {'status': 'affected', 'version': '3.1.0 p9'}, {'status': 'affected', 'version': '3.3 Patch 2'}, {'status': 'affected', 'version': '3.3 Patch 1'}, {'status': 'affected', 'version': '3.3 Patch 3'}, {'status': 'affected', 'version': '3.4.0'}, {'status': 'affected', 'version': '3.2.0 p7'}, {'status': 'affected', 'version': '3.3 Patch 4'}, {'status': 'affected', 'version': '3.4 Patch 1'}, {'status': 'affected', 'version': '3.1.0 p10'}, {'status': 'affected', 'version': '3.3 Patch 5'}, {'status': 'affected', 'version': '3.3 Patch 6'}, {'status': 'affected', 'version': '3.4 Patch 2'}, {'status': 'affected', 'version': '3.3 Patch 7'}, {'status': 'affected', 'version': '3.4 Patch 3'}, {'status': 'affected', 'version': '3.5.0'}, {'status': 'affected', 'version': '3.4 Patch 4'}, {'status': 'affected', 'version': '3.3 Patch 8'}, {'status': 'affected', 'version': '3.2 Patch 8'}, {'status': 'affected', 'version': '3.5 Patch 1'}, {'status': 'affected', 'version': '3.3 Patch 9'}, {'status': 'affected', 'version': '3.2 Patch 9'}, {'status': 'affected', 'version': '3.4 Patch 5'}, {'status': 'affected', 'version': '3.5 Patch 3'}, {'status': 'affected', 'version': '3.5 Patch 2'}, {'status': 'affected', 'version': '3.3 Patch 10'}], 'defaultStatus': 'unknown'}, {'vendor': 'Cisco', 'product': 'Cisco ISE Passive Identity Connector', 'versions': [{'status': 'affected', 'version': '3.2.0'}, {'status': 'affected', 'version': '3.1.0'}, {'status': 'affected', 'version': '3.3.0'}, {'status': 'affected', 'version': '3.4.0'}, {'status': 'affected', 'version': '3.5.0'}], 'defaultStatus': 'unknown'}] Added Description A vulnerability in Cisco Identity Services Engine (ISE) and Cisco ISE Passive Identity Connector (ISE-PIC) could allow an authenticated, remote attacker to perform path traversal attacks on the underlying operating system to either read or delete arbitrary files. To exploit this vulnerability, the attacker must have valid administrative credentials. This vulnerability is due to improper validation of user-supplied input. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected system. A successful exploit could allow the attacker to access sensitive files or delete arbitrary files on the affected system. Added CVSS V3.1 AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:L/A:N Added CWE CWE-22 Added Reference https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-traversal-xNt7wb2Y