CVE-2026-41688Public exploitNetwork attack vector

Internal resource disclosure via DNS rebinding race

Published May 7, 2026 · Updated May 7, 2026

Server-side request forgery in ellite Wallos 4.8.4 and earlier allows remote authenticated users to read internal resources via DNS rebinding. The SSRF helper validates a hostname with gethostbyname(), but ten outbound cURL call sites resolve the original hostname again instead of pinning the checked IP. Low-privilege access and control of a rebinding DNS server are required; successful requests can expose internal APIs, localhost panels, or cloud metadata without modifying or interrupting them.

CVSS severity7.7
High
EPSS probability0.23%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Server-side request forgery in ellite Wallos 4.8.4 and earlier allows remote authenticated users to read internal resources via DNS rebinding. The SSRF helper validates a hostname with gethostbyname(), but ten outbound cURL call sites resolve the original hostname again instead of pinning the checked IP. Low-privilege access and control of a rebinding DNS server are required; successful requests can expose internal APIs, localhost panels, or cloud metadata without modifying or interrupting them.

The record

CVE
CVE-2026-41688
Published
May 7, 2026
Updated
May 7, 2026
Vendor
ellite
Product
Wallos
Classifications
CWE-918, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 7, 2026CVE publishedPublication date reported by the CVE source.
  2. May 7, 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.

  1. Affected versionversion=<= 4.8.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

ellite · Wallosversion=<= 4.8.4

Published CVSS scores

7.7GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-918Server-Side Request Forgery (SSRF)
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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