CVE-2026-121589 PUBLISHED

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.

• Jamshid Himmatov (VulDB User) reporter
• VulDB Vulnerability Moderation Team coordinator

• VDB-430430 | spatie url-signer URL Validation AbstractUrlSigner.php validate type conversion
• VDB-430430 | CTI Indicators (IOB, IOC, IOA)
• CVE-2026-121589 | CVE Analysis and Report
• Submit #1021957 | Spatie url-signer 2.1.3 Denial of Service
• https://github.com/spatie/url-signer/commit/86af3355388210668f6bfbe9007bd6545d4942ad
• https://github.com/spatie/url-signer/releases/tag/2.1.4
• https://github.com/spatie/url-signer/

• Incorrect Type Conversion CWE