CVE-2026-23518 Fleet has a JWT signature bypass vulnerability in Azure AD MDM enrollment

Fleet is open source device management software. In versions prior to 4.78.3, 4.77.1, 4.76.2, 4.75.2, and 4.53.3, a vulnerability in Fleet's Windows MDM enrollment flow could allow an attacker to submit forged authentication tokens that are not properly validated. Because JWT signatures were not...

EUVD-2026-3609

Mini Mouse 9.2.0 contains a remote code execution vulnerability that allows attackers to execute arbitrary commands through an unauthenticated HTTP endpoint. Attackers can leverage the /op=command endpoint to download and execute payloads by sending crafted JSON requests with malicious script...

CVE-2021-47851 Mini Mouse 9.2.0 - Remote Code Execution

Mini Mouse 9.2.0 contains a remote code execution vulnerability that allows attackers to execute arbitrary commands through an unauthenticated HTTP endpoint. Attackers can leverage the /op=command endpoint to download and execute payloads by sending crafted JSON requests with malicious script...

CVE-2025-36418

IBM ApplinX 11.1 is vulnerable due to a privilege escalation vulnerability due to improper verification of JWT tokens. An attacker may be able to craft or modify a JSON web token in order to impersonate another user or to elevate their privileges...

Deserialization of Untrusted Data

Overview org.webjars.npm:seroval is a Stringify JS values Affected versions of this package are vulnerable to Deserialization of Untrusted Data in the fromJSON and fromCrossJSON functions during JSON deserialization. An attacker can execute arbitrary JavaScript code by crafting serialized data th...

Prototype Pollution

Overview org.webjars.npm:seroval is a Stringify JS values Affected versions of this package are vulnerable to Prototype Pollution in the JSON deserialization process. An attacker can manipulate the prototype of objects by supplying malicious object keys during deserialization. Details Prototype...

seroval Affected by Prototype Pollution via JSON Deserialization

Due to improper input validation, a malicious object key can lead to prototype pollution during JSON deserialization. This affects only JSON deserialization functionality. As there is no known workaround, please upgrade to the latest version...

UBUNTU-CVE-2026-22022

Deployments of Apache Solr 5.3.0 through 9.10.0 that rely on Solr's "Rule Based Authorization Plugin" are vulnerable to allowing unauthorized access to certain Solr APIs, due to insufficiently strict input validation in those components. Only deployments that meet all of the following criteria ar...

CVE-2026-1203

A weakness has been identified in CRMEB up to 5.6.3. The impacted element is the function remoteRegister of the file crmeb/app/services/user/LoginServices.php of the component JSON Token Handler. Executing a manipulation of the argument uid can lead to improper authentication. The attack may be...

Timing Attack

Overview Affected versions of this package are vulnerable to Timing Attack via the JSONAuth.Auth function. An unauthenticated attacker can determine valid usernames by measuring the response time of the /api/login endpoint, exploiting the timing discrepancy between valid and invalid username...

CVE-2026-1195

A weakness has been identified in MineAdmin 1.x/2.x. This impacts the function refresh of the file /system/refresh of the component JWT Token Handler. This manipulation causes insufficient verification of data authenticity. It is possible to initiate the attack remotely. The attack is considered ...

Fleet data falsification vulnerability

Fleet is an open-source device management platform that supports various operating systems and devices. It helps IT and security teams with device management, vulnerability reporting, MDM operations, etc. It’s free and flexible. Fleet has a data falsification vulnerability, which stems from...

PT-2026-3899

Name of the Vulnerable Software and Affected Versions HarbourJwt affected versions not specified Description A JWT authentication bypass exists in HarbourJwt due to an issue with algorithm handling. Specifically, unsupported algorithms can lead to an empty signature, allowing forged tokens to pas...

PT-2026-3878

seroval facilitates JS value stringification, including complex structures beyond JSON.stringify capabilities. In versions 1.4.0 and below, due to improper input validation, a malicious object key can lead to prototype pollution during JSON deserialization. This vulnerability affects only JSON...

CVE-2026-23849

File Browser provides a file managing interface within a specified directory and can be used to upload, delete, preview, rename, and edit files. Prior to version 2.55.0, the JSONAuth. Auth function contains a logic flaw that allows unauthenticated attackers to enumerate valid usernames by measuri...

Improper Verification of Cryptographic Signature

Overview Affected versions of this package are vulnerable to Improper Verification of Cryptographic Signature via the JWT verification process. An attacker can gain unauthorized enrollment of rogue devices by submitting a forged JWT with arbitrary identity claims, as the system fails to verify th...

Fleet has a JWT signature bypass vulnerability in Azure AD MDM enrollment

Summary A vulnerability in Fleet’s Windows MDM enrollment flow could allow an attacker to submit forged authentication tokens that are not properly validated. Because JWT signatures were not verified, Fleet could accept attacker-controlled identity claims, enabling enrollment of unauthorized...

Improper Verification of Cryptographic Signature

Overview Affected versions of this package are vulnerable to Improper Verification of Cryptographic Signature via the JWT verification process. An attacker can gain unauthorized enrollment of rogue devices by submitting a forged JWT with arbitrary identity claims, as the system fails to verify th...

Improper Verification of Cryptographic Signature

Overview Affected versions of this package are vulnerable to Improper Verification of Cryptographic Signature via the JWT verification process. An attacker can gain unauthorized enrollment of rogue devices by submitting a forged JWT with arbitrary identity claims, as the system fails to verify th...

Improper Verification of Cryptographic Signature

Overview Affected versions of this package are vulnerable to Improper Verification of Cryptographic Signature via the JWT verification process. An attacker can gain unauthorized enrollment of rogue devices by submitting a forged JWT with arbitrary identity claims, as the system fails to verify th...