---
id: CVE-2026-121589
title: >-
  spatie url-signer URL Validation AbstractUrlSigner.php validate type
  conversion
summary: >-
  A weakness has been identified in spatie url-signer up to 2.1.3. Affected is
  the function AbstractUrlSigner::validate of the file AbstractUrlSigner.php of
  the component URL Validation. This manipulation of the argument expires causes
  inc…
severity: medium
cvss: 5.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C'
cvssSource: cna
cwe:
  - CWE-704
vendor: spatie
product: url-signer
affected:
  - url-signer 2.1.0
  - url-signer 2.1.1
  - url-signer 2.1.2
  - url-signer 2.1.3
published: '2026-11-03'
updated: '2026-11-03'
sourceUpdated: '2026-11-03T23:45:22.405Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-121589'
references:
  - url: 'https://vuldb.com/vuln/430430'
    label: >-
      VDB-430430 | spatie url-signer URL Validation AbstractUrlSigner.php
      validate type conversion
  - url: 'https://vuldb.com/vuln/430430/cti'
    label: 'VDB-430430 | CTI Indicators (IOB, IOC, IOA)'
  - url: 'https://vuldb.com/cve/CVE-2026-121589'
    label: CVE-2026-121589 | CVE Analysis and Report
  - url: 'https://vuldb.com/submit/1021957'
    label: 'Submit #1021957 | Spatie url-signer 2.1.3 Denial of Service'
  - url: >-
      https://github.com/spatie/url-signer/commit/86af3355388210668f6bfbe9007bd6545d4942ad
  - url: 'https://github.com/spatie/url-signer/releases/tag/2.1.4'
  - url: 'https://github.com/spatie/url-signer/'
tags:
  - cve.org
epss: 0.00419
epssPercentile: 0.36421
ingestedAt: '2026-11-05T20:33:06.621Z'
---

## Overview

A weakness has been identified in spatie url-signer up to 2.1.3. Affected is the function AbstractUrlSigner::validate of the file AbstractUrlSigner.php of the component URL Validation. This manipulation of the argument expires causes incorrect type conversion. It is possible to initiate the attack remotely. The exploit has been made available to the public and could be used for attacks. Upgrading to version 2.1.4 is able to address this issue. Patch name: 86af3355388210668f6bfbe9007bd6545d4942ad. It is recommended to upgrade the affected component.

## Affected

- `url-signer 2.1.0`
- `url-signer 2.1.1`
- `url-signer 2.1.2`
- `url-signer 2.1.3`

## Remediation

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