Unauthenticated admin password reset via greedy login regex
Published Mar 11, 2026 · Updated Mar 11, 2026
Authentication bypass in the AOS-CX web interface allows remote attackers to evade access controls and, in some cases, reset the admin password. A greedy nginx regular expression exempts crafted REST paths with extra segments before a trailing login element from authentication. The interface must be network-reachable; affected 10.10 releases also expose the running configuration and administrator password hash through the bypass.
Summary
What happened
Authentication bypass in the AOS-CX web interface allows remote attackers to evade access controls and, in some cases, reset the admin password. A greedy nginx regular expression exempts crafted REST paths with extra segments before a trailing login element from authentication. The interface must be network-reachable; affected 10.10 releases also expose the running configuration and administrator password hash through the bypass.
The record
- CVE
- CVE-2026-23813
- Published
- Mar 11, 2026
- Updated
- Mar 11, 2026
- Vendor
- Hewlett Packard Enterprise (HPE)
- Product
- HPE Aruba Networking CX Switch Operating System (AOS-CX)
- Classifications
- CWE-287, T1190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Mar 11, 2026CVE publishedPublication date reported by the CVE source.
- Mar 11, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=10.10.0000 <=10.10.1170
- Affected versionversion=10.13.0000 <=10.13.1101
- Affected versionversion=10.16.0000 <=10.16.1020
- Affected versionversion=10.17.0000 <=10.17.0001
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
- offseckit/CVE-2026-23813functional · demonstrated
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Technologies
Your stack
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Your stack
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