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CVE-2026-81196

MasterStudy LMS < 3.7.46 - Instructor+ Quiz Answer Disclosure via IDOR

The MasterStudy LMS WordPress Plugin WordPress plugin before 3.7.46 does not properly verify ownership of quiz question identifiers, allowing users with instructor access to read other instructors' quiz questions, including the correct answers and explanations.

CVSS 3.1 · 2.7 Low EPSS < 1% KEV · Not listed
Vendors
Stylemix Wordpress
Products
Masterstudy Lms Wordpress Plugin Wordpress
CVE-2026-81198

MasterStudy LMS < 3.7.46 - Instructor+ Cross-Course Curriculum Deletion and Tampering via IDOR

The MasterStudy LMS WordPress Plugin WordPress plugin before 3.7.46 does not properly verify ownership of a curriculum object before acting on it, allowing authenticated users with the instructor role to delete or modify curriculum sections and materials belonging to courses owned by other instructors.

CVSS 3.1 · 3.8 Low EPSS < 1% KEV · Not listed
Vendors
Stylemix Wordpress
Products
Masterstudy Lms Wordpress Plugin Wordpress
CVE-2026-84672

Entra Group Permission Collision in Jenkins Plugin Enables Privilege Escalation

Jenkins Microsoft Entra ID (previously Azure AD) Plugin 710.v0b_ff8e9cc2d2 and earlier grants Entra group permissions using both the group's unique object ID and its display name, allowing attackers who can create an Entra group with a colliding display name to gain the permissions configured for a privileged group.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
Vendors
Jenkins Project
Products
Jenkins Microsoft Entra Id Plugin
CVE-2026-84811

agentverus-scanner Companion Code Analysis Bypass via Excluded Python Bytecode

agentverus-scanner fails to analyze compiled Python bytecode files in companion code directories, allowing attackers to bypass security scanning by shipping malicious __pycache__ entries alongside benign source files. Attackers can execute arbitrary Python bytecode on import while the scanner reports a CERTIFIED verdict with high trust scores in both static and semantic analysis modes.

CVSS 4.0 · 7.1 High EPSS < 1% KEV · Not listed
Vendors
Agentverus
Products
Agentverus-scanner
CVE-2026-84378

HTTPX2: Quadratic SSE line buffering can cause CPU denial of service

HTTPX2 is a next generation HTTP client for Python. From 2.5.0 until 2.10.0, the HTTPX2 Server-Sent Events parser in src/httpx2/httpx2/_sse.py repeatedly copies and rescans buffered text in _SSELineDecoder.decode() when an attacker-controlled or compromised SSE endpoint splits one unterminated line across many response chunks. The behavior affects httpx2.Client.sse() and httpx2.AsyncClient.sse(), and the total processing work grows quadratically with the line length, allowing a crafted stream to consume excessive CPU and block a synchronous worker or asynchronous event loop. This issue is fixed in version 2.10.0.

CVSS 3.1 · 5.9 Medium EPSS < 1% KEV · Not listed
Vendors
Pydantic
Products
Httpx2
CVE-2026-53670

PREVAIL: Non-singleton typeset in add() skips offset update, allowing OOB access to pass eBPF verification

PREVAIL is a Polynomial-Runtime EBPF Verifier using an Abstract Interpretation Layer. Prior to version 0.2.4, in the Prevail eBPF verifier, EbpfTransformer::add() silently skips offset-variable updates when the destination register carries a non-singleton typeset (two or more simultaneously possible pointer types). Subsequent bounds checks use the stale offset and accept out-of-bounds memory accesses, so a crafted BPF program passes verification even though it would corrupt memory at runtime. This issue has been patched in version 0.2.4.

CVSS 4.0 · 9.3 Critical EPSS < 1% KEV · Not listed
Vendors
Vbpf
Products
Prevail
CVE-2026-53706

PREVAIL: ALU32 pointer arithmetic accepted without is64 gate — verifier emits false PASS for pointer-corrupting programs

PREVAIL is a Polynomial-Runtime EBPF Verifier using an Abstract Interpretation Layer. Prior to version 0.2.4, the prevail eBPF verifier accepts ALU32 ADD and SUB instructions that operate on pointer-typed registers without checking the is64 flag. Because ALU32 arithmetic zero-extends the 32-bit result, the upper half of any pointer is silently destroyed at runtime, yet prevail marks the program as verified safe. Any caller that can submit an eBPF program for verification — including unprivileged users on kernels that permit BPF program loading — can produce a program that passes verification but faults or misbehaves at runtime. This issue has been patched in version 0.2.4.

CVSS 4.0 · 8.8 High EPSS < 1% KEV · Not listed
Vendors
Vbpf
Products
Prevail
CVE-2026-80254

Authorization Bypass via User‑Controlled Key Allows Password Change

Authorization bypass through user-controlled key issue exists in ShizenBox2 (edge-app). If exploited, an attacker who can log in to the product may change the other user's password.

CVSS 4.0 · 7.1 High EPSS < 1% KEV · Not listed
Vendors
Shizen Connect
Products
Shizenbox2 (edge-app)
CVE-2026-80515

Encoded Path Exploit in Eclipse Arrowhead Management Gateway Grants Admin Privileges

In Eclipse Arrowhead versions from 5.0.0 to 5.2.1 the management-authorization gate that protects every /…/mgmt/… REST endpoint decides whether to apply its check by calling request.getRequestURL().toString().contains("/mgmt/"). Tomcat returns getRequestURL() un-decoded, while Spring MVC's DispatcherServlet routes on the decoded path. Requesting /serviceregistry/%6Dgmt/systems (%6D == m) therefore fails the substring check — the filter falls through without authorising — yet is decoded to /serviceregistry/mgmt/systems and dispatched to the management controller. Spring Security's StrictHttpFirewall (active via spring-boot-starter-security in arrowhead-common) only rejects encoded / \ . % ; and null bytes, so percent-encoded ASCII letters pass through. Any authenticated system — regardless of privilege — can reach every management operation, including POST /authentication/mgmt/identities which creates new sysop accounts, yielding full administrative takeover of the local cloud.

CVSS 4.0 · 8.9 High EPSS < 1% KEV · Not listed
Vendors
Eclipse
Products
Arrowhead
CVE-2026-85214

vhr Missing Authorization in PUT /hr/info Allows Arbitrary Profile Overwrite

vhr fails to validate user authorization in the PUT /hr/info endpoint, allowing authenticated users to modify arbitrary HR profiles by supplying any profile ID in the request body. Attackers can overwrite other users' names, addresses, and disable accounts including administrators to cause denial of service.

CVSS 4.0 · 7.2 High EPSS < 1% KEV · Not listed
Vendors
Lenve
Products
Vhr
CVE-2026-85211

Label Studio through 1.23.0 Cross-Organization Storage URI Resolution

Label Studio fails to apply organization filters when resolving storage URIs for tasks and projects in proxy_api.py endpoints. Attackers can access other tenants' cloud storage objects by creating a separate organization and supplying arbitrary file URIs to presign or stream bucket contents.

CVSS 4.0 · 8.3 High EPSS < 1% KEV · Not listed
Vendors
Humansignal
Products
Label Studio
CVE-2026-85177

CRMEB through 6.0.0 Unauthorized Message Modification via edit_message

CRMEB through 6.0.0 fails to validate message ownership in the edit_message handler of MessageSystemController.php, allowing authenticated users to modify arbitrary system inbox messages. Attackers can update any message's columns including is_del, look, and uid to delete, mark read, or reassign victim notifications without authorization.

CVSS 4.0 · 5.3 Medium EPSS < 1% KEV · Not listed
Vendors
Crmeb
Products
Crmeb
CVE-2026-84851

Uncontrolled recursion in the Ion reader in Amazon Ion-C before 1.1.6

An uncontrolled recursion issue exists in Amazon Ion-C versions before 1.1.6 that might allow a remote unauthenticated actor to craft Ion data that exhausts the native call stack and crashes the application using the library, resulting in a denial of service.

CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
Vendors
Amazon
Products
Ion-c
CVE-2026-14326

Timetics <= 1.0.61 - Staff+ Cross-Staff Appointment Modification via IDOR

The Timetics WordPress plugin through 1.0.61 does not enforce per-object ownership when updating appointments through its REST API, allowing users with its custom staff role to modify, disable, or take over appointments belonging to other staff members.

CVSS 3.1 · 3.8 Low EPSS < 1% KEV · Not listed
Vendors
Timetics Wordpress
Products
Timetics Wordpress
CVE-2026-78064

Joomla Extension - j2commerce.com - Anonymous cart-record tampering via inherited FOF `save` task in J2Store 1.0.0-3.3.21, 4.0.0-4.0.21, 4.1.0-4.1.6

Joomla Extension - j2commerce.com - Anonymous cart-record tampering via inherited FOF `save` task in J2Store 1.0.0-3.3.21, 4.0.0-4.0.21, 4.1.0-4.1.6 - `fof.xml` grants the `carts` view's tasks a wildcard `true` ACL, and FOF only enforces CSRF tokens on back-end HTML requests, not on front-end `format=raw` requests. `J2StoreControllerCarts` already scoped `remove()` to the caller's own session, but never overrode the generic FOF `save` task, so it remained reachable to insert new cart rows with an attacker-chosen `user_id`/`session_id`, or overwrite an existing row by id.

CVSS 4.0 · 8.8 High EPSS < 1% KEV · Not listed
Vendors
J2commerce.com
Products
J2store Extension For Joomla
CVE-2026-77999

Joomla Extension - j2commerce.com - Unauthenticated PayPal callback forgery leading to order confirmation fraud in J2Store 1.0.0-3.3.21, 4.0.0-4.0.21, 4.1.0-4.1.6

Joomla Extension - j2commerce.com - Unauthenticated PayPal callback forgery leading to order confirmation fraud in J2Store 1.0.0-3.3.21, 4.0.0-4.0.21, 4.1.0-4.1.6 - The PayPal IPN listener's signature check (`_validateIPN()`) accepted `UNVERIFIED` and any non-`INVALID` response as valid, made its verification request with `CURLOPT_SSL_VERIFYPEER` disabled, and stored its verdict in a field nothing downstream ever checked — so processing continued regardless of the outcome. Separately, the paid-amount comparison only ran when `mc_gross` was a positive number; omitting the field from the POST body (`floatval(null) == 0`) skipped the check entirely. Combined with a merchant-configured `receiver_email` and a sequential, enumerable order id read from the `custom` field, an anonymous POST was enough to move a pending order straight to `CONFIRMED` with no payment, or force another customer's pending order to `FAILED`. `paypalv2.php` performed no amount check under any circumstances.

CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
Vendors
J2commerce.com
Products
J2store Extension For Joomla
CVE-2026-78065

Joomla Extension - j2commerce.com - Guest checkout address disclosure to any authenticated user (IDOR) in J2Store 1.0.0-3.3.21, 4.0.0-4.0.21, 4.1.0-4.1.6

Joomla Extension - j2commerce.com - Guest checkout address disclosure to any authenticated user (IDOR) in J2Store 1.0.0-3.3.21, 4.0.0-4.0.21, 4.1.0-4.1.6 - `editAddress()` redirected non-owners away only when the loaded address row had a **non-empty** `user_id` belonging to someone else. Guest-checkout address rows have an empty `user_id`, so that check never triggered for them — any logged-in account guessing a small, sequential `address_id` got a guest customer's full name, street address, and phone number rendered prefilled into the edit form.

CVSS 4.0 · 7.1 High EPSS < 1% KEV · Not listed
Vendors
J2commerce.com
Products
J2store Extension For Joomla
CVE-2026-85105

NousResearch hermes-agent Session Management s71.py _sess_nowait authorization

A flaw has been found in NousResearch hermes-agent 0.18.0. Affected by this issue is the function _sess_nowait of the file s71.py of the component Session Management. This manipulation of the argument session_id causes authorization bypass. The attack can be initiated remotely. The vendor was contacted early about this disclosure but did not respond in any way.

CVSS 4.0 · 6.9 Medium EPSS < 1% KEV · Not listed
Vendors
Nousresearch
Products
Hermes-agent
CVE-2026-41523

vLLM: Security Check Bypass via assert Statement in Activation Function Loading Allows Arbitrary Code Execution

vLLM is an inference and serving engine for large language models (LLMs). Prior to 0.22.0, an assert-based security check in vLLM's activation function loading allows any unauthenticated attacker to achieve arbitrary code execution on the server by publishing a malicious HuggingFace model, when vLLM runs in Python optimized mode (python -O or PYTHONOPTIMIZE=1). This vulnerability is fixed in 0.22.0.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Vendors
Vllm Vllm-project
Products
Vllm Vllm