A Use of Incorrectly-Resolved Name or Reference vulnerability in the URL filtering plugin of Juniper Networks Junos OS on MX Series allows an unauthenticated, network-based attacker to bypass web filtering and access downstream resources that should be unreachable.
If an MX Series device is configured with web filtering, and an attacker sends a request with a specifically formatted URL, this request will get forwarded despite the system being configured to block it. In turn, an attacker can access downstream resources that are expected to be unreachable.
This issue affects Junos OS on MX Series:
* all versions before 23.2R2-S7,
* 23.4 versions before 23.4R2-S8,
* 24.2 versions before 24.2R2-S5,
* 24.4 versions before 24.4R2-S4,
* 25.2 versions before 25.2R2-S1,
* 25.4 versions before 25.4R1-S2, 25.4R2.
References
| Link | Resource |
|---|---|
| https://supportportal.juniper.net/JSA110093 | Vendor Advisory |
Configurations
Configuration 1 (hide)
| AND |
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History
25 Oct 2026, 15:10
| Type | Values Removed | Values Added |
|---|---|---|
| Summary |
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Information
Published : 2026-07-09 22:17
Updated : 2026-10-25 15:10
NVD link : CVE-2026-57054
Mitre link : CVE-2026-57054
CVE.ORG link : CVE-2026-57054
JSON object : View
Products Affected
juniper
- mx2008
- mx304
- mx2010
- mx10008
- mx204
- mx2020
- mx480
- mx301
- mx960
- mx240
- junos
- mx10004
CWE
CWE-706
Use of Incorrectly-Resolved Name or Reference