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Vendor Solution
The following software releases have been updated to resolve this specific issue: Junos OS: 23.2R2-S7.7, 23.4R2-S8.13, 24.2R2-S5.5, 24.4R2-S5, 25.2R2-S2, 25.4R1-S3, 25.4R2, 26.2R1-S2, 26.2R2, 26.4R1, and all subsequent releases. Junos OS Evolved: 23.2R2-S7.7-EVO, 23.4R2-S8.11-EVO, 24.2R2-S5.6-EVO, 24.4R2-S5-EVO, 25.2R2-S2-EVO, 25.2X100-D35-EVO, 25.4R1-S3-EVO, 25.4R2-EVO, 25.4X300-D40-EVO, 26.2R1-S2-EVO, 26.2R2-EVO, 26.4R1-EVO, and all subsequent releases. Note: For Junos OS releases 23.2, 23.4, and 24.2, and Junos OS Evolved releases 23.2-EVO, 23.4-EVO, and 24.2-EVO, specific respins have been referenced. Previously published versions of these releases have been rebuilt to resolve the security vulnerabilities identified in this advisory.
Vendor Workaround
There are no known workarounds for this issue.
Tracking
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| Link | Providers |
|---|---|
| https://supportportal.juniper.net/JSA112187 |
|
Wed, 14 Oct 2026 16:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | An Improper Authentication vulnerability in J-Web of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated network attacker to bypass J-Web authentication and execute CGI content with elevated privileges via a crafted HTTP request. | |
| Title | Junos OS and Junos OS Evolved: J-Web permits pre-authentication CGI execution | |
| Weaknesses | CWE-287 | |
| References |
| |
| Metrics |
cvssV3_1
|
Subscriptions
No data.
Status: PUBLISHED
Assigner: juniper
Published:
Updated: 2026-10-14T20:46:20.534Z
Reserved: 2026-09-28T16:31:35.504Z
Link: CVE-2026-101986
No data.
Status : Received
Published: 2026-10-14T17:17:50.953
Modified: 2026-10-14T17:17:50.953
Link: CVE-2026-101986
No data.
OpenCVE Enrichment
No data.
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CWE-287
Improper Authentication