spatie url-signer up to 2.1.3 URL Validation AbstractUrlSigner.php validate expires type conversion

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.8$0-$5k1.47+

Summaryinfo

A vulnerability classified as problematic was found in spatie url-signer up to 2.1.3. Affected by this vulnerability is the function AbstractUrlSigner::validate of the file AbstractUrlSigner.php of the component URL Validation. Such manipulation of the argument expires leads to type conversion. This vulnerability is referenced as CVE-2026-121589. It is possible to launch the attack remotely. Furthermore, an exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in spatie url-signer up to 2.1.3 and classified as problematic. Affected by this issue is the function AbstractUrlSigner::validate of the file AbstractUrlSigner.php of the component URL Validation. The manipulation of the argument expires with an unknown input leads to a type conversion vulnerability. Using CWE to declare the problem leads to CWE-704. The product does not correctly convert an object, resource, or structure from one type to a different type. Impacted is availability.

This vulnerability is handled as CVE-2026-121589. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details as well as a public exploit are known.

It is declared as proof-of-concept. By approaching the search of inurl:AbstractUrlSigner.php it is possible to find vulnerable targets with Google Hacking.

Upgrading to version 2.1.4 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 86af3355388210668f6bfbe9007bd6545d4942ad is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 4.8

VulDB Base Score: 5.3
VulDB Temp Score: 4.8
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Type conversion
CWE: CWE-704
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Google Hack: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: url-signer 2.1.4
Patch: 86af3355388210668f6bfbe9007bd6545d4942ad

Timelineinfo

11/03/2026 Advisory disclosed
11/03/2026 +0 days VulDB entry created
11/03/2026 +0 days VulDB entry last update

Sourcesinfo

Product: github.com

Status: Confirmed

CNA: VulDB
CVE: CVE-2026-121589 (🔒)

GCVE (CVE): GCVE-0-2026-121589
GCVE (VulDB): GCVE-100-430430
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 11/03/2026 17:06
Changes: 11/03/2026 17:06 (59)
Complete: 🔍
Submitter: Jamshid Himmatov
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #1021957: Spatie url-signer 2.1.3 Denial of Service (by Jamshid Himmatov)

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