CVE-2026-76712

Executive Summary

CVE-2026-76712 is a CVSS 7.3 (High) unauthenticated remotely exploitable vulnerability in Aruba Networks' Analytics and Location Engine (ALE), classified as CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor). The NVD description states that an unauthenticated remote attacker could achieve unauthorized access, information disclosure, bypass of security controls, or a denial-of-service condition by sending specially crafted input or intercepting network communications. No affected version range, vendor patch, workaround, public proof-of-concept, or CISA KEV entry currently exists, leaving defenders with no confirmed remediation path and a broad, unpatched exposure surface.

Technical Analysis

The authoritative description for CVE-2026-76712 is deliberately generic. It states: "A vulnerability exists in the Analytics and Location Engine (ALE) that may allow for unauthorized access, information disclosure, or denial of service. An unauthenticated remote attacker could exploit the vulnerable system by sending specially crafted input or intercepting network communications. Successful exploitation could result in the disclosure of sensitive information, bypass of security controls, or a denial of service condition on the affected system."

Because the CNA title is empty and the NVD description does not name a function, class, endpoint, parameter, or protocol element, the following analysis is constrained to the vulnerability class and the network-level attack surface.

Vulnerability class. The sole assigned weakness is CWE-200 — Exposure of Sensitive Information to an Unauthorized Actor. This places the primary impact on confidentiality, consistent with the CVSS subscore C:L. However, the vector also carries I:L and A:L, and the description explicitly contemplates "bypass of security controls" and "denial of service." This combination — a low-confidentiality integrity/availability perturbation with no privileges or user interaction required — indicates an input-handling or trust-boundary defect reached before authentication rather than a classic post-auth injection.

Attack surface. ALE is a network-resident analytics platform that ingests telemetry from Aruba infrastructure (controllers, access points, and related management components) and exposes that data through service interfaces for consumption by upstream systems. The vulnerability is reachable at the network layer (AV:N) with no authentication (PR:N) and no user interaction (UI:N), and with low attack complexity (AC:L). Two delivery mechanisms are named in the description:

1. Sending specially crafted input — implies a remotely reachable input parser, API handler, or listener that fails to validate or properly bound attacker-supplied data. A defect of this class typically manifests as information leakage in error responses or verbose output, improper authorization enforcement at an interface boundary, or resource exhaustion from unhandled input.
2. Intercepting network communications — implies that at least a portion of the relevant traffic is not adequately protected, such that an on-path adversary can observe or manipulate it. This is the component that most directly supports CWE-200, since interception yields disclosure of sensitive data in transit.

Scope boundaries. The scope is unchanged (S:U), meaning exploitation is assessed to remain within the vulnerable ALE security authority rather than pivoting the assessment into a separate component. No code-level detail — no function, endpoint, file path, or parameter name — is available from the supplied data. Any such specifics would be fabrication and are therefore omitted. The most defensible technical characterization is: an unauthenticated, remotely triggerable input-handling and/or transport-protection weakness in ALE that leaks sensitive information and can perturb availability.

Patch status. Patch confidence is 0/4. No vendor advisory, fixed-version reference, or workaround has been identified from any tracked source. As of this report, the vulnerability should be treated as unpatched.

Exploitation Scenarios

No public proof-of-concept, exploit code, or Nuclei template exists for CVE-2026-76712. The chain below is inferred strictly from the vulnerability class (CWE-200) and the two mechanisms named in the NVD description. It contains no invented endpoints, parameters, or function names.

1) Reconnaissance and target identification. The attacker identifies internet-facing or laterally reachable ALE instances. ALE is deployed to aggregate location and analytics telemetry and is typically exposed on an administrative or data-service interface rather than a general-purpose web front end. Reconnaissance relies on service fingerprinting (banner strings, TLS certificate subject data identifying Aruba infrastructure, and HTTP titles or body content referencing ALE) and on knowledge of the organization's wireless deployment footprint. Because the flaw requires no authentication, any reachable instance is a viable candidate.

2) Triggering the flaw. Two paths are documented:

• Crafted input: the attacker sends specially crafted input to the exposed ALE service interface. Per the CWE-200 classification, the expected outcome is that the service returns or exposes sensitive information it should not — for example, data returned to an unauthenticated requester, verbose diagnostic output, or an information-bearing response to a malformed request. The same crafted-input path is the vector for the described "bypass of security controls" and "denial of service" outcomes, meaning malformed or adversarial input can additionally defeat an access control decision or exhaust a resource on the affected system.
• Network interception: where a relevant communication path is insufficiently protected, an on-path attacker who intercepts the traffic obtains sensitive information directly, satisfying the confidentiality objective without needing to defeat an authentication check at all.

3) Execution method. At the vulnerability-class level, exploitation is a single unauthenticated network interaction (or a passive on-path observation) — no credentials, no session, and no user action are required, which is consistent with the CVSS PR:N/UI:N/AC:L ratings.

4) Post-exploitation impact. Successful exploitation yields one or more of: disclosure of sensitive information resident in or transiting ALE; bypass of an intended security control; and partial loss of availability on the affected system. Because integrity and availability impacts are rated Low and scope is unchanged, the effect is assessed as localized leakage and service perturbation rather than full system compromise or lateral takeover. That said, disclosed ALE telemetry and configuration data can materially aid follow-on targeting of the broader Aruba wireless estate, and the same crafted-input surface should be assumed capable of triggering an availability failure.

Impact Assessment

CVE-2026-76712 carries a base score of 7.3 (High) with vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L. The exploitable characteristics drive the severity: network reachability (AV:N), low complexity (AC:L), no privileges required (PR:N), and no user interaction (UI:N). On the impact axis, confidentiality, integrity, and availability are each rated Low with unchanged scope, producing a balanced but non-catastrophic impact profile — yet the "no preconditions" attack characteristics push the aggregate score firmly into High territory.

Business impact. ALE aggregates analytics and location telemetry that can include client presence, movement, and device data alongside configuration and management information. Unauthorized disclosure of that data carries regulatory exposure under privacy regimes and can reveal network topology to an adversary. The described "bypass of security controls" raises the risk that the same interface can be used to reach data that should be access-restricted. The availability component means an attacker can degrade or interrupt the analytics service itself, which the organization may depend on for monitoring and operational visibility.

Affected systems and blast radius. All reachable ALE deployments are in scope for assessment; no version range has been published, so version-based scoping is not possible and defenders must inventory by product and network exposure. Internet-facing or broadly reachable instances represent the highest-priority exposure. The unchanged scope rating indicates containment within the ALE security authority, but disclosed credentials, configuration, or topology data resident in ALE can be reused against adjacent Aruba infrastructure — this secondary, downstream risk is not captured by the S:U rating and should be considered separately.

Exploit likelihood. EPSS is 0.00429, at the 34.6th percentile of exploited CVEs, indicating a currently low probability of exploitation in the wild. There is no CISA KEV listing, no public PoC, and no exploit code. This does not reduce severity — it indicates the exploit ecosystem has not yet matured, and unpatched, unauthenticated, remotely reachable defects of this class are commonly targeted once public detail emerges.

Detection Guidance

Detection for this CVE is challenging because no specific endpoint, parameter, or payload signature is known. The rules below target the behavioral and structural signals implied by the description: unauthenticated interaction with ALE service interfaces, anomalous/malformed request patterns, and error-driven information leakage. In all cases, environment-specific tuning is required — replace placeholder addresses, interface identifiers, and ports with values from your own ALE deployment and monitor for baseline deviation rather than fixed strings.

Sigma Rule

title: Aruba ALE Unauthenticated Suspicious Access or Information Disclosure Attempt (CVE-2026-76712)
id: 3f9c1a72-5b64-4f0e-9d21-ale767120001
status: experimental
description: Detects repeated unauthenticated or malformed requests to the Aruba Analytics and Location Engine (ALE) service interface that may indicate exploitation of CVE-2026-76712 (CWE-200 information disclosure, unauthenticated remote access).
references:
  - https://nvd.nist.gov/vuln/detail/CVE-2026-76712
author: valtersit.com
date: 2026-01-01
logsource:
  category: webserver
detection:
  selection_ale:
    cs-uri-stem|contains:
      - '/ale/'
      - '/analytics'
      - '/location'
  selection_unauth:
    sc-status:
      - 200
      - 401
      - 403
      - 500
    c-ip|exists: true
  filter_known_good:
    cs-username|exists: true
  condition: selection_ale and selection_unauth and not filter_known_good
falsepositives:
  - Legitimate unauthenticated health checks or monitoring probes against ALE
  - Misconfigured internal clients repeatedly accessing the ALE interface
level: medium
tags:
  - attack.t1190
  - cve.2026.76712

YARA Rule

rule CVE_2026_76712_Aruba_ALE_Info_Disclosure_Response
{
    meta:
        description = "Detects response content indicative of Aruba Analytics and Location Engine (ALE) service interfaces and potential sensitive-information disclosure per CVE-2026-76712 (CWE-200)"
        reference = "https://nvd.nist.gov/vuln/detail/CVE-2026-76712"
        author = "valtersit.com"
        date = "2026-01-01"
        severity = "high"

    strings:
        $ale1 = "Analytics and Location Engine" ascii wide nocase
        $ale2 = "ALE" ascii wide
        $svc1 = "aruba" ascii wide nocase
        $leak1 = "password" ascii nocase
        $leak2 = "secret" ascii nocase
        $leak3 = "apikey" ascii nocase
        $leak4 = "token" ascii nocase
        $err1  = "stack trace" ascii nocase
        $err2  = "exception" ascii nocase

    condition:
        uint16(0) == 0x0A0D or uint32(0) == 0x0A0D0A0D or
        (
            (1 of ($ale1, $ale2, $svc1)) and
            (1 of ($leak1, $leak2, $leak3, $leak4, $err1, $err2))
        )
}

Suricata IDS Rule

alert http any any -> any any (msg:"CVE-2026-76712 Aruba ALE Unauthenticated Suspicious Request (Possible Info Disclosure)"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"ale"; nocase; http.user_agent; content:"!authenticated"; pcre:"/(analytics|location|ale)/i"; threshold:type both, track by_src, count 20, seconds 60; classtype:attempted-recon; reference:cve,2026-76712; reference:url,nvd.nist.gov/vuln/detail/CVE-2026-76712; sid:7671201; rev:1;)

alert tcp any any -> any any (msg:"CVE-2026-76712 Aruba ALE Possible Cleartext Sensitive Data in Transit"; flow:established,to_client; content:"ALE"; nocase; pcre:"/(password|token|secret|apikey)=/i"; threshold:type limit, track by_src, count 5, seconds 60; classtype:policy-violation; reference:cve,2026-76712; sid:7671202; rev:1;)

Note: Suricata rules above are structural templates. The URI token ale and the cleartext-credential heuristic must be validated against your actual ALE interface paths and traffic profile before production deployment. No confirmed exploit signature exists for this CVE.

Elastic Detection

sequence by source.ip with maxspan=2m
  [ network where
      network.transport == "tcp" and
      destination.port in (80, 443, 8080, 8443) and
      url.path : ("*ale*", "*analytics*", "*location*") ]
  [ network where
      network.transport == "tcp" and
      url.path : ("*ale*", "*analytics*", "*location*") and
      http.response.status_code in (200, 500) and
      not user.name : "*" ]

Splunk SPL Query

index=web OR index=proxy
| eval ale_uri=if(match(lower(uri), "ale|analytics|location"), 1, 0)
| where ale_uri=1
| eval unauth=if(isnull(user) OR user="-" OR user="", 1, 0)
| stats count as req_count,
        dc(src_ip) as unique_sources,
        values(status) as status_codes,
        values(uri) as sample_uris
        by src_ip, dest_host
| where req_count > 20 AND unauth=1
| sort - req_count

Wazuh OSSEC Rule

<group name="aruba,ale,cve-2026-76712,">
  <rule id="767120" level="10">
    <decoded_as>web-accesslog</decoded_as>
    <match>ale|analytics|location</match>
    <description>CVE-2026-76712: Possible unauthenticated access to Aruba ALE service interface (potential information disclosure)</description>
    <mitre>
      <id>T1190</id>
    </mitre>
  </rule>

  <rule id="767121" level="12" frequency="20" timeframe="60">
    <if_matched_sid>767120</if_matched_sid>
    <same_source_ip />
    <description>CVE-2026-76712: Repeated unauthenticated ALE access from same source - possible exploitation attempt</description>
    <mitre>
      <id>T1190</id>
    </mitre>
  </rule>
</group>

All rules above are behavioral baselines. Because CVE-2026-76712 has no published signature, PoC, or exploit artifact, detection must be tuned to your ALE interface paths, expected authentication state, and normal request volume. Treat sustained deviation from baseline as the primary signal.

Mitigation & Patch Guidance

Patch confidence: 0/4 (UNPATCHED — no patch evidence from any tracked source). No vendor fix, workaround, or affected-version data is currently available. The guidance below is standard defensive posture for an unauthenticated, remotely reachable information-disclosure and input-handling defect of unknown scope, not a confirmed remediation for this CVE. Validate all actions against official Aruba/HPE advisories before execution.

1) Immediate mitigations.

• Restrict network reachability (highest priority). ALE should not be exposed to untrusted networks. Place instances behind firewall policy that permits access only from explicitly required management and consumer hosts, and remove any internet-facing exposure. This directly neutralizes the AV:N/PR:N attack path.
• Enforce transport protection. The description names interception of network communications as a vector. Ensure all access to and from ALE uses current TLS with strong cipher suites and validated certificates, and eliminate any cleartext or legacy-protocol paths. This addresses the CWE-200 disclosure-at-transit component.
• Segment and monitor. Isolate ALE in a restricted management segment and enable full session logging on its interfaces; treat ALE as a sensitive data store given the analytics and location telemetry it holds.
• Rate-limit and scrub responses. Apply rate limiting and generic error responses at the fronting proxy so that crafted input cannot drive verbose diagnostic output or resource exhaustion.
• Reduce data sensitivity. Minimize the sensitive data resident in ALE and rotate any credentials, API keys, or tokens that ALE stores or transmits, in case of prior disclosure.

2) Patch/upgrade steps. No patch exists. Open a case with Aruba/HPE support to obtain a fixed release and affected-version matrix, subscribe to Aruba security advisories for CVE-2026-76712, and monitor NVD for updates. When a version range and fix are published, inventory all ALE instances, stage the fix in a non-production environment, then upgrade — do not leave the vulnerability unaddressed once a fix is available. Until then, treat compensating network controls as the primary defense.

3) Long-term hardening.

• Maintain an authoritative asset inventory of ALE and adjacent Aruba components with network exposure mapped, since version-based scoping is currently impossible.
• Enforce least-privilege access to analytics interfaces and apply defense-in-depth so no single unauthenticated interface exposes sensitive data.
• Integrate patch-management tracking with continuous vulnerability scanning for the Aruba product line and monitor EPSS/KEV for escalation.
• Assume a breach of ALE-resident data is possible and design downstream systems so that credentials and identifiers exposed through ALE cannot be reused for lateral movement.
• Re-test detection rules after any vendor fix or new public detail, as exploit maturity for unpatched remote flaws can change rapidly.

References

1. NVD — CVE-2026-76712: https://nvd.nist.gov/vuln/detail/CVE-2026-76712
2. CWE-200 — Exposure of Sensitive Information to an Unauthorized Actor: https://cwe.mitre.org/data/definitions/200.html
3. MITRE ATT&CK T1190 — Exploit Public-Facing Application: https://attack.mitre.org/techniques/T1190/
4. FIRST EPSS — CVE-2026-76712 scoring (0.00429, 34.6th percentile): https://api.first.org/data/v1/epss?cve=CVE-2026-76712
5. Aruba / HPE Product Security Advisories (vendor advisory portal — check for published guidance on ALE): https://www.arubanetworks.com/support-services/security-bulletins/

Exploitation and campaign status. No public proof-of-concept, exploit code, or Nuclei template is known. CVE-2026-76712 is not listed in CISA KEV. There is no available evidence of exploit-in-the-wild activity, targeted campaigns, or threat-actor attribution. With EPSS at the 34.6th percentile, exploitation is currently assessed as low-probability — but the defect remains unpatched, unauthenticated, and remotely reachable, so this status should be re-evaluated as public detail or a vendor fix emerges.