---
id: CVE-2026-15525
title: A vulnerability was detected in kLOsk adloop up to 0.9.0
summary: >-
  A vulnerability was detected in kLOsk adloop up to 0.9.0. This vulnerability
  affects the function _validate_urls of the file src/adloop/ads/write.py.
  Performing a manipulation of the argument final_url results in server-side
  request forg…
severity: medium
cvss: 6.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L'
cwe:
  - CWE-918
published: '2026-07-13'
updated: '2026-07-13'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-15525'
references:
  - url: 'https://github.com/kLOsk/adloop/'
    label: cna@vuldb.com
  - url: >-
      https://github.com/kLOsk/adloop/commit/217399723e3a2fb39389e5355d49ed80aaf9ea7c
    label: cna@vuldb.com
  - url: 'https://github.com/kLOsk/adloop/issues/41'
    label: cna@vuldb.com
  - url: 'https://github.com/kLOsk/adloop/releases/tag/v0.10.0'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/cve/CVE-2026-15525'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/submit/854528'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/377854'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/377854/cti'
    label: cna@vuldb.com
tags:
  - nvd
ingestedAt: '2026-07-13T03:23:47.854Z'
epss: 0.00374
epssPercentile: 0.2858
---

## Overview

A vulnerability was detected in kLOsk adloop up to 0.9.0. This vulnerability affects the function _validate_urls of the file src/adloop/ads/write.py. Performing a manipulation of the argument final_url results in server-side request forgery. The attack may be initiated remotely. The exploit is now public and may be used. Upgrading to version 0.10.0 is able to resolve this issue. The patch is named 217399723e3a2fb39389e5355d49ed80aaf9ea7c. Upgrading the affected component is advised.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.