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CVE-2026-8836

lwIP snmpv3 USM snmp_msg.c snmp_parse_inbound_frame stack-based overflow

A vulnerability was found in lwIP up to 2.2.1. Affected is the function snmp_parse_inbound_frame of the file src/apps/snmp/snmp_msg.c of the component snmpv3 USM Handler. Performing a manipulation of the argument msgAuthenticationParameters results in stack-based buffer overflow. The attack may be initiated remotely. The patch is named 0c957ec03054eb6c8205e9c9d1d05d90ada3898c. It is suggested to install a patch to address this issue. Two separate issue reports were submitted to the project. Their processing was merged as a duplicate.

CVSS 4.0 · 9.3 Critical EPSS 1.1% KEV · Not listed
Vendors
Lwip Lwip-tcpip
Products
Lwip Lwip
CVE-2026-77776

Headroom Proxy Treats the Client-Supplied x-headroom-user-id Header as an Authenticated Identity

Headroom's LLM proxy derives the memory owner from the x-headroom-user-id request header. The header is read directly at several points in headroom/proxy/handlers/openai.py, including the chat completion and websocket paths, and nothing binds the value to the caller. A client can therefore name another user's identifier and read or write that user's stored LLM memory. The fix introduces a single resolve_memory_identity seam in headroom/proxy/identity.py that honors the header only for loopback or allowlisted callers and otherwise binds the identity to the proxy-token fingerprint or the operating system user. The pip console script binds 127.0.0.1 by default, but the reference docker-compose.yml ships --host 0.0.0.0 with published ports and no required HEADROOM_PROXY_TOKEN, which the server itself warns about at startup, so a deployment following the shipped compose exposes the affected data-plane routes to the network without authentication.

CVSS 4.0 · 9.3 Critical EPSS < 1% KEV · Not listed
Vendors
Headroom Labs
Products
Headroom
CVE-2026-77022

Comfast CF-N1-S SSID Configuration mbox-config sub_44B438 stack-based overflow

A security flaw has been discovered in Comfast CF-N1-S 2.6.0.1. Affected by this issue is the function sub_44B438 of the file /cgi-bin/mbox-config?method=SET&section=ptest_ssid of the component SSID Configuration. The manipulation of the argument ssid results in stack-based buffer overflow. The attack can be executed remotely. The exploit has been released to the public and may be used for attacks.

CVSS 4.0 · 9.4 Critical EPSS < 1% KEV · Not listed
Vendors
Comfast
Products
Cf-n1-s
CVE-2026-76003

UTT HiPER 1200GW formGroupConfig strcpy stack-based overflow

A weakness has been identified in UTT HiPER 1200GW up to 2.5.3-170306. Affected is the function strcpy of the file /goform/formGroupConfig. Executing a manipulation of the argument timestart can lead to stack-based buffer overflow. The attack may be performed from remote. The exploit has been made available to the public and could be used for attacks.

CVSS 4.0 · 9.4 Critical EPSS < 1% KEV · Not listed
Vendors
Utt
Products
Hiper 1200gw
CVE-2026-71871

Orval: Import-time RCE via header-parameter default -> zod module-level template literal

Orval generates type-safe JavaScript clients in TypeScript from OpenAPI v3 and Swagger v2 specifications. Prior to 8.21.0, a ${...} expression or backtick in a header parameter default is emitted into a module-level template literal emitted by zod schema generation without safe encoding. This permits attacker-controlled JavaScript to be evaluated when the generated zod schema module is imported, resulting in code execution in the developer, CI, test, or application environment. The affected code is packages/zod/src/index.ts function formatDefaultValue. This issue is fixed in version 8.21.0.

CVSS 4.0 · 9.3 Critical EPSS < 1% KEV · Not listed
Vendors
Orval-labs
Products
Orval
CVE-2026-71865

Orval: Import-time RCE via query parameter name -> computed-property-key injection in the zod cli

Orval generates type-safe JavaScript clients in TypeScript from OpenAPI v3 and Swagger v2 specifications. Prior to 8.21.0, a double quote in a query parameter name is emitted into the generated request-validation zod.object({...}) schema without safe encoding. This permits attacker-controlled JavaScript to be evaluated when the generated zod schema module is imported, resulting in code execution in the developer, CI, test, or application environment. The affected code is packages/zod/src/index.ts and query request-validation generation. This issue is fixed in version 8.21.0.

CVSS 4.0 · 9.3 Critical EPSS < 1% KEV · Not listed
Vendors
Orval-labs
Products
Orval
CVE-2026-74798

SiYuan kernel Path Traversal via database_clean MCP tool

SiYuan kernel before v3.7.4 contains a path traversal vulnerability in the database_clean MCP tool. The tool performs only an empty-string check on the id parameter before passing it to RemoveUnusedAttributeView (kernel/model/attribute_view.go), which builds a filesystem path via filepath.Join without validating that id matches SiYuan's node-ID format. An authenticated MCP client can supply path traversal sequences in id to cause the kernel to copy an arbitrary file readable by the process into SiYuan's history directory (arbitrary file read) and then delete the original file (arbitrary file deletion). The corresponding HTTP API handler was hardened in GHSA-7hm9-v7vf-7g4w, but this MCP caller was not.

CVSS 4.0 · 9.3 Critical EPSS < 1% KEV · Not listed
Vendors
B3log Siyuan
Products
Siyuan Siyuan
CVE-2026-74799

SiYuan before 3.7.4 Unauthenticated Debug Endpoint Information Disclosure

SiYuan before 3.7.4 registers Go net/http/pprof debug endpoints including heap and goroutine dumps without authentication when --mode flag is not set to exactly prod. Attackers can access /debug/pprof/heap and related endpoints to extract in-memory secrets including AccessAuthCode and AI provider API keys.

CVSS 4.0 · 9.2 Critical EPSS < 1% KEV · Not listed
Vendors
B3log Siyuan
Products
Siyuan Siyuan
CVE-2026-74254

Joomla Extension - joomlack.fr - SQL injection in Page Builder CK < 3.6.5

Joomla Extension - joomlack.fr - SQL injection in Page Builder CK < 3.6.5 - The Joomla extension Page Builder CK is vulnerable to a SQL injection issue related to the styles model. Version 3.6.4 fixed the vector in the frontend, 3.6.5 in the backend.

CVSS 4.0 · 9.3 Critical EPSS < 1% KEV · Not listed
Vendors
Joomlack
Products
Page Builder Ck
CVE-2026-74804

Joomla Extension - yootheme.com - Unauthenticated SQL injection in Zoo < 4.1.64

Joomla Extension - yootheme.com - Unauthenticated SQL injection in ItemController::element() in Zoo < 4.1.64 - The filter_type request value is interpolated into the query as a.type = "..." and the type_filter array as a.type IN ("..."), with no quoting or escaping.

CVSS 4.0 · 9.3 Critical EPSS < 1% KEV · Not listed
Vendors
Yootheme.com
Products
Zoo Extension For Joomla
CVE-2026-74803

Joomla Extension - yootheme.com - Unauthenticated arbitrary file upload in Zoo < 4.1.64

Joomla Extension - yootheme.com - Unauthenticated arbitrary file upload in Zoo < 4.1.64 - The image element accepts arbitrary files when the client-supplied Content-Type falls within the image MIME group.

CVSS 4.0 · 10 Critical EPSS < 1% KEV · Not listed
Vendors
Yootheme.com
Products
Zoo Extension For Joomla
CVE-2026-71960

Cudy WR3000 2.0 Hard-coded JWT Secret Authentication Bypass via MQTT

Cudy WR3000 2.0 running firmware before 2.5.24 contains a hard-coded JWT HMAC signing secret vulnerability in the Mosquitto MQTT broker's authentication plugin that allows unauthenticated attackers to forge valid JWT tokens by extracting the secret from the firmware image. Attackers can use the extracted secret to craft arbitrary JWT tokens and authenticate to the MQTT broker without legitimate credentials, gaining unauthorized access to the device's mesh networking interface.

CVSS 4.0 · 9.3 Critical EPSS < 1% KEV · Not listed
Vendors
Shenzhen Cudy Technology
Products
Wr3000 2.0
CVE-2026-75932

Jet Admin tenant isolation failure

Jet Admin allows an attacker to create a malicious app and connect it to a target user's custom domain, edit the authentication configuration, and reroute traffic to the attacker-controlled app. Once connected to the target domain, the attacker's workspace is populated with the victim's OAuth Client ID and Client Secret if the victim is using an OAuth provider.

CVSS 4.0 · 9.2 Critical EPSS < 1% KEV · Not listed
Vendors
Jet Admin
Products
Jet Admin
CVE-2026-72529

TrueConf Server Remote Unauthorized Function Enables Arbitrary Script Execution via Port 4307

A remote unauthorized attacker with network access via port 4307/TCP to the TrueConf server versions 5.3.X to 5.3.9, 5.4.X to 5.4.9, 5.5.X to 5.5.5, and earlier could execute an arbitrary script by calling an undocumented function.

CVSS 4.0 · 9.3 Critical EPSS 1.5% KEV · Listed
Vendors
Trueconf
Products
Trueconf Trueconf Server
CVE-2026-75916

SiYuan XSS-to-RCE via unescaped block metadata in hint popup

SiYuan through 3.7.3 contains a cross-site scripting vulnerability in the '((' block-reference autocomplete hint popup. In genHintItemHTML() (app/src/protyle/hint/extend.ts), a candidate block's name, alias, and memo fields are concatenated into the popup's HTML without escaping. An attacker who can set these metadata fields on a block can inject a self-firing payload (e.g. <img src=x onerror=...>) that executes automatically when a victim types '((' followed by a search term that surfaces the crafted block. Because SiYuan's Electron windows run with nodeIntegration enabled, contextIsolation disabled, and no CSP, the injected script gains require('child_process') access, allowing the XSS to escalate to arbitrary OS command execution.

CVSS 4.0 · 9.3 Critical EPSS < 1% KEV · Not listed
Vendors
B3log
Products
Siyuan
CVE-2026-72717

Orval: Import-time RCE via schema default -> zod module-level template literal

Orval generates type-safe JavaScript clients in TypeScript from OpenAPI v3 and Swagger v2 specifications. Prior to 8.21.0, a ${...} expression or backtick in a schema default is emitted into a module-level template literal emitted by zod schema generation without safe encoding. This permits attacker-controlled JavaScript to be evaluated when the generated zod schema module is imported, resulting in code execution in the developer, CI, test, or application environment. The affected code is packages/zod/src/index.ts function formatDefaultValue. This issue is fixed in version 8.21.0.

CVSS 4.0 · 9.3 Critical EPSS < 1% KEV · Not listed
Vendors
Orval-labs
Products
Orval
CVE-2026-67443

FUXA: Unauthenticated guest JWT bypasses Node-RED secure-mode authorization gate (Remote Script Execution)

FUXA is a web-based Process Visualization (SCADA/HMI/Dashboard) software. In 1.3.2 and earlier, the allowDashboard authorization gate in server/integrations/node-red/index.js calls authJwt.verify for /nodered without inspecting the decoded identity. When nodeRedEnabled is true, secureEnabled is true, and nodeRedAuthMode is secure, a remote unauthenticated attacker can obtain a signed guest token from POST /api/heartbeat and use it to access the RED.httpAdmin editor and flow deployment API. Because the Node-RED configuration has no second adminAuth gate, the attacker can deploy function nodes or invoke fuxa.runScript and runtime.scriptsMgr.runScript, gaining control of FUXA project data, configuration, scripts, filesystem-capable runtime helpers, and potentially operating-system commands when nodeRedUnsafeModules is enabled. This issue is fixed in version 1.3.3.

CVSS 4.0 · 9.2 Critical EPSS < 1% KEV · Not listed
Vendors
Frangoteam
Products
Fuxa
CVE-2026-62681

Orval: RCE via OpenAPI path -> unescaped request-URL template literal (backtick breakout)

Orval generates type-safe JavaScript clients in TypeScript from OpenAPI v3 and Swagger v2 specifications. Prior to 8.21.0, an unescaped backtick in an OpenAPI path is emitted into request URL template literals generated for axios, fetch, react-query, and SWR clients without safe encoding. This permits attacker-controlled JavaScript to be evaluated when a generated request, URL-builder, or query-key function is called, resulting in code execution in the developer, CI, test, or application environment. The affected code is packages/core/src/getters/route.ts and route generation consumers. This issue is fixed in version 8.21.0.

CVSS 4.0 · 9.3 Critical EPSS < 1% KEV · Not listed
Vendors
Orval-labs
Products
Orval
CVE-2026-53424

Missing one-time-use enforcement in Samly allows replay of SAML bearer assertions

Authentication Bypass by Capture-replay vulnerability in dropbox samly allows an attacker to authenticate as the subject of a captured SAML assertion by resubmitting it. Samly.Helper.decode_idp_auth_resp/3 in lib/samly/helper.ex calls esaml_sp:validate_assertion/2, whose default duplicate detector is a no-op. The /3 arity accepting a DuplicateFun exists in esaml and implements the check, but Samly never calls it and offers no configuration to supply one, so the SAML 2.0 Web Browser SSO Profile requirement that a bearer assertion be used once is unenforced. An attacker holding a valid SAMLResponse obtained from the network, from browser history, or from logs can submit the identical bytes repeatedly until the assertion's NotOnOrAfter passes, each time establishing a session as the assertion's subject. This issue affects samly: from 0.3.0 onward.

CVSS 4.0 · 9.1 Critical EPSS < 1% KEV · Not listed
Vendors
Dropbox Handnot2
Products
Samly Samly
CVE-2026-2334

) Missing Server-Side File Extension Validation in vsDesk

An issue was discovered in vsDesk v14.0101. An authenticated attacker with administrative privileges can bypass client-side file validation in the "Import via CSV" component due to a lack of server-side validation. This allows the upload of an arbitrary file, which can lead to Remote Code Execution (RCE) within the context of the web application.  Apply patch from vendor https://vsdesk.ru/ . Versions 14.0402 and on have the patch.

CVSS 4.0 · 9.4 Critical EPSS < 1% KEV · Not listed
Vendors
Vsdesk
Products
Vsdesk