CVE-2026-30840Public exploitNetwork attack vector

Authenticated internal-service access via notification tester URLs

Published Mar 7, 2026 · Updated Mar 7, 2026

SSRF in Wallos before 4.6.2 allows remote authenticated users to access internal services through crafted notification tester URLs. The webhook, Gotify, and ntfy tester endpoints pass user-controlled URL or host values to server-side cURL requests without blocking private, loopback, link-local, or metadata addresses; the ignore_ssl option also disables certificate verification. A logged-in user with a valid CSRF token can read internal metadata, probe localhost services, or reach internal admin interfaces from the application host.

CVSS severity8.8
High
EPSS probability0.50%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SSRF in Wallos before 4.6.2 allows remote authenticated users to access internal services through crafted notification tester URLs. The webhook, Gotify, and ntfy tester endpoints pass user-controlled URL or host values to server-side cURL requests without blocking private, loopback, link-local, or metadata addresses; the ignore_ssl option also disables certificate verification. A logged-in user with a valid CSRF token can read internal metadata, probe localhost services, or reach internal admin interfaces from the application host.

The record

CVE
CVE-2026-30840
Published
Mar 7, 2026
Updated
Mar 7, 2026
Vendor
ellite
Product
Wallos
Classifications
CWE-295, CWE-918, T1552.005
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 7, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 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=< 4.6.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

ellite · Wallosversion=< 4.6.2

Published CVSS scores

8.8GitHub, Inc.CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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-295Improper Certificate Validation
CWE-918Server-Side Request Forgery (SSRF)
T1552.005Unsecured Credentials: Cloud Instance Metadata API

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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