CVE-2026-15525Public exploitNetwork attack vector

Blind SSRF via unrestricted final URL fetch

Published Jul 13, 2026 · Updated Jul 13, 2026

SSRF in kLOsk AdLoop 0.9.0 and earlier allows remote authenticated users to send requests from its host via a crafted final_url. The _validate_urls function passes the caller-controlled URL to urllib.request.urlopen without a scheme allowlist or destination filtering. Any client able to invoke an MCP draft tool can trigger blind requests to internal or metadata endpoints, but response bodies are not returned.

CVSS severityUnavailable
Unscored
EPSS probability0.37%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

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Summary

What happened

SSRF in kLOsk AdLoop 0.9.0 and earlier allows remote authenticated users to send requests from its host via a crafted final_url. The _validate_urls function passes the caller-controlled URL to urllib.request.urlopen without a scheme allowlist or destination filtering. Any client able to invoke an MCP draft tool can trigger blind requests to internal or metadata endpoints, but response bodies are not returned.

The record

CVE
CVE-2026-15525
Published
Jul 13, 2026
Updated
Jul 13, 2026
Vendor
kLOsk
Product
AdLoop
Classifications
CWE-918, T1046
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 13, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 13, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0.1
  2. Affected versionversion=0.2
  3. Affected versionversion=0.3
  4. Affected versionversion=0.4
  5. Affected versionversion=0.5
  6. Affected versionversion=0.6
  7. Affected versionversion=0.7
  8. Affected versionversion=0.8
  9. Affected versionversion=0.9.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

kLOsk · AdLoopversion=0.1; version=0.2; version=0.3; version=0.4; version=0.5; version=0.6; version=0.7; version=0.8; version=0.9.0

Published CVSS scores

2.1GitHub Advisory DatabaseCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

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)
T1046Network Service Scanning

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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