CyberSecBulletin

Red Hat vulnerabilities

We track 2,065 vulnerabilities in Red Hat products across 60+ products. 2,057 are rated high or critical, and 99 have been exploited in real attacks. The most recent was published on November 13, 2026.

2,065vulnerabilities
338critical
1,719high
99exploited
8.1average CVSS score

Latest Red Hat vulnerabilities

  • 7.5 High severity

    python-multipart: Allocation of Resources Without Limits or Throttling

    CVE-2026-42561Kludex

    Python-Multipart is a streaming multipart parser for Python. Prior to 0.0.27, python-multipart has a denial of service vulnerability in multipart part header parsing. When parsing multipart/form-data, MultipartParser previously had no limit on the number of pa

  • 7.5 High severity

    netty: Uncontrolled Resource Consumption

    CVE-2026-44248Netty

    Netty is an asynchronous, event-driven network application framework. Prior to 4.2.13.Final and 4.1.133.Final, the MQTT 5 header Properties section is parsed and buffered before any message size limit is applied. Specifically, in MqttDecoder, the decodeVariabl

  • 7.5 High severity

    netty: Uncontrolled Resource Consumption

    CVE-2026-42587Netty

    Netty is an asynchronous, event-driven network application framework. Prior to 4.2.13.Final and 4.1.133.Final, HttpContentDecompressor accepts a maxAllocation parameter to limit decompression buffer size and prevent decompression bomb attacks. This limit is co

  • 9.1 Critical severity

    netty: Inconsistent Interpretation of HTTP Requests

    CVE-2026-42584Netty

    Netty is an asynchronous, event-driven network application framework. Prior to 4.2.13.Final and 4.1.133.Final, HttpClientCodec pairs each inbound response with an outbound request by queue.poll() once per response, including for 1xx. If the client pipelines GE

  • 9.8 Critical severity

    netty: Inconsistent Interpretation of HTTP Requests

    CVE-2026-42581Netty

    Netty is an asynchronous, event-driven network application framework. Prior to 4.2.13.Final and 4.1.133.Final, HttpObjectDecoder strips a conflicting Content-Length header when a request carries both Transfer-Encoding: chunked and Content-Length, but only for

  • 9.1 Critical severity

    Netty is an asynchronous, event-driven network application framework.

    CVE-2026-42579NettyEPSS 1.01%

    Netty is an asynchronous, event-driven network application framework. Prior to 4.2.13.Final and 4.1.133.Final, Netty's DNS codec does not enforce RFC 1035 domain name constraints during either encoding or decoding. This creates a bidirectional attack surface:

  • 7.5 High severity

    netty: Improper Neutralization of CRLF Sequences in HTTP Headers

    CVE-2026-42578NettyEPSS 1.06%

    Netty is an asynchronous, event-driven network application framework. Prior to 4.2.13.Final and 4.1.133.Final, Netty's HttpProxyHandler constructs HTTP CONNECT requests with header validation explicitly disabled. The newInitialMessage() method creates headers

  • 9.8 Critical severity

    vm2: Exposure of Resource to Wrong Sphere

    CVE-2026-45411Patriksimek

    vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.3, it is possible to catch a host exception using the yield* expression inside an async generator. When the generator is closed using the return function, the value is awaited on and exceptions thrown

  • 7.5 High severity

    next.js: Authentication Bypass Using an Alternate Path or Channel

    CVE-2026-45109Vercel

    Next.js is a React framework for building full-stack web applications. From 15.2.0 to before 15.5.18 and 16.2.6, it was found that the fix addressing CVE-2026-44575 did not apply to middleware.ts with Turbopack. This vulnerability is fixed in 15.5.18 and 16.2.

  • 7.5 High severity

    next.js: Allocation of Resources Without Limits or Throttling

    CVE-2026-44579Vercel

    Next.js is a React framework for building full-stack web applications. From to before 15.5.16 and 16.2.5, applications using Partial Prerendering through the Cache Components feature can be vulnerable to connection exhaustion through crafted POST requests to a

  • 8.6 High severity

    next.js: Server-Side Request Forgery

    CVE-2026-44578VercelEPSS 35.5%

    Next.js is a React framework for building full-stack web applications. From 13.4.13 to before 15.5.16 and 16.2.5, self-hosted applications using the built-in Node.js server can be vulnerable to server-side request forgery through crafted WebSocket upgrade requ

  • 9.8 Critical severity

    vm2: Exposure of Resource to Wrong Sphere

    CVE-2026-44009PatriksimekEPSS 1.01%

    vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.2, VM2 suffers from a sandbox breakout vulnerability. This allows attackers to write code which can escape from the VM2 sandbox and execute arbitrary commands on the host system. This vulnerability is

  • 9.8 Critical severity

    vm2: Exposure of Resource to Wrong Sphere

    CVE-2026-44008Patriksimek

    vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.2, the new method neutralizeArraySpeciesBatch works with objects from the other side but can call into this side via getter on the array prototype exposing objects of the wrong side into the sandbox.

  • 9.1 Critical severity

    vm2: Improper Access Control

    CVE-2026-44007PatriksimekEPSS 1%

    vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.1, when a NodeVM is created with nesting: true, sandbox code can unconditionally require('vm2') regardless of the outer VM's require configuration — including require: false. With access to vm2, the s

  • 10.0 Critical severity

    vm2: Improper Control of Generation of Code

    CVE-2026-44006Patriksimek

    vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.0, It is possible to reach BaseHandler.getPrototypeOf, which can be used to get arbitrary prototypes. This vulnerability is fixed in 3.11.0.

  • 10.0 Critical severity

    vm2: Improper Control of Generation of Code

    CVE-2026-44005Patriksimek

    vm2 is an open source vm/sandbox for Node.js. From 3.9.6 to 3.10.5, vm2's bridge exposes mutable proxies for real host-realm intrinsic prototypes and then forwards sandbox writes into the underlying host objects with otherReflectSet() and otherReflectDefinePro

  • 7.5 High severity

    vm2: Allocation of Resources Without Limits or Throttling

    CVE-2026-44004Patriksimek

    vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.0, sandboxed code can call Buffer.alloc() with an arbitrary size to allocate memory directly on the host heap. Because Buffer.alloc is a synchronous C++ native call, vm2's timeout option cannot interr

  • 8.6 High severity

    vm2: Uncaught Exception

    CVE-2026-44001Patriksimek

    vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.0, a sandbox escape vulnerability in vm2 v3.10.5 allows any sandboxed code to crash the host Node.js process via a single Promise constructor that triggers an unhandled rejection propagating to the ho

  • 9.9 Critical severity

    vm2: Incorrect Authorization

    CVE-2026-43999Patriksimek

    vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.0, NodeVM's builtin allowlist can be bypassed when the module builtin is allowed (including via the '*' wildcard). The module builtin exposes Node's Module._load(), which loads any module by name dire

  • 8.5 High severity

    vm2: Improper Link Resolution Before File Access

    CVE-2026-43998Patriksimek

    vm2 is an open source vm/sandbox for Node.js. In 3.10.5, NodeVM's require.root path restriction can be bypassed using filesystem symlinks, allowing sandboxed code to load modules from outside the allowed root directory in host context. Because path validation

  • 10.0 Critical severity

    vm2: Improper Control of Generation of Code

    CVE-2026-43997Patriksimek

    vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.0, it is possible to obtain the host Object. There are various ways to use the host Object, to escape the sandbox, one example would be using HostObject.getOwnPropertySymbols to obtain Symbol(nodejs.u

  • 7.5 High severity

    next.js: Authentication Bypass Using an Alternate Path or Channel

    CVE-2026-44575VercelEPSS 1.59%

    Next.js is a React framework for building full-stack web applications. From 15.2.0 to before 15.5.16 and 16.2.5, App Router applications that rely on middleware or proxy-based checks for authorization can allow unauthorized access through transport-specific ro

  • 8.1 High severity

    next.js: Authentication Bypass Using an Alternate Path or Channel

    CVE-2026-44574Vercel

    Next.js is a React framework for building full-stack web applications. From 15.4.0 to before 15.5.16 and 16.2.5, applications that rely on middleware to protect dynamic routes can be vulnerable to authorization bypass. In affected deployments, specially crafte

  • 7.5 High severity

    next.js: Incorrect Authorization

    CVE-2026-44573Vercel

    Next.js is a React framework for building full-stack web applications. From 12.2.0 to before 15.5.16 and 16.2.5, Applications using the Pages Router with i18n configured and middleware/proxy-based authorization can allow unauthorized access to protected page d

  • 7.5 High severity

    urllib3: Improper Handling of Highly Compressed Data (Data Amplification)

    CVE-2026-44432Urllib3

    urllib3 is an HTTP client library for Python. From 2.6.0 to before 2.7.0, urllib3 could decompress the whole response instead of the requested portion (1) during the second HTTPResponse.read(amt=N) call when the response was decompressed using the official Bro

  • 8.8 High severity

    protobuf.js: Improper Control of Generation of Code

    CVE-2026-44293Protobufjs

    protobufjs compiles protobuf definitions into JavaScript (JS) functions. Prior to 7.5.6 and 8.0.2, protobufjs generated JavaScript for toObject conversion could include an unsafe expression derived from a schema-controlled bytes field default value. A crafted

  • 7.5 High severity

    protobuf.js: Uncontrolled Recursion

    CVE-2026-44289Protobufjs

    protobufjs compiles protobuf definitions into JavaScript (JS) functions. Prior to 7.5.6 and 8.0.2, protobufjs could recurse without a depth limit while decoding nested protobuf data. This affected both skipping unknown group fields and generated decoding of ne

  • 8.1 High severity

    NGINX Plus: Heap-based Buffer Overflow

    CVE-2026-42945F5EPSS 68%

    NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_rewrite_module module. This vulnerability exists when the rewrite directive is followed by a rewrite, if, or set directive and an unnamed Perl-Compatible Regular Expression (PCRE) capture (f

  • 9.6 Critical severity

    jupyterlab: Improper Neutralization of Input During Web Page Generation

    CVE-2026-42557Jupyterlab

    jupyterlab is an extensible environment for interactive and reproducible computing, based on the Jupyter Notebook Architecture. Prior to 4.5.7, JupyterLab's HTML sanitizer allowlists data-commandlinker-command and data-commandlinker-args on button elements, wh

  • 8.8 High severity

    jupyterlab: Improper Neutralization of Argument Delimiters in a Command

    CVE-2026-42266JupyterlabEPSS 5.65%

    JupyterLab is an extensible environment for interactive and reproducible computing, based on the Jupyter Notebook Architecture. From 4.0.0 to 4.5.6, the allow-list of extensions that can be installed from PyPI Extension Manager (allowed_extensions_uris) is not

  • 7.3 High severity

    Red Hat OpenShift AI (RHOAI): Improper Control of Generation of Code

    CVE-2026-31236Red Hat

    The llm CLI tool thru 0.27.1 contains a critical code injection vulnerability via its --functions command-line argument. This argument is intended to allow users to provide custom Python function definitions. However, the tool directly executes the provided co

  • 8.8 High severity

    Red Hat OpenShift AI (RHOAI): Improper Neutralization of Argument Delimiters in a Command

    CVE-2026-31230Red Hat

    The Adversarial Robustness Toolbox (ART) thru 1.20.1 contains a command-line argument injection vulnerability in its Kubeflow component (robustness_evaluation_fgsm_pytorch.py). The script uses the unsafe eval() function to parse string values provided via the

  • 8.8 High severity

    Red Hat OpenShift AI (RHOAI): Improper Control of Generation of Code

    CVE-2026-31228Red Hat

    The Adversarial Robustness Toolbox (ART) thru 1.20.1 contains a remote code execution vulnerability in its Kubeflow component. The robustness evaluation function for PyTorch models uses the unsafe eval() function to dynamically evaluate user-supplied strings f

  • 7.5 High severity

    Firefox: Protection Mechanism Failure

    CVE-2026-8401Mozilla

    Sandbox escape in the Profile Backup component. This vulnerability was fixed in Firefox 150.0.3, Firefox ESR 115.36, Firefox ESR 140.11, and Thunderbird 140.11.

  • 7.5 High severity

    Other issue in the JavaScript Engine component.

    CVE-2026-8391Mozilla

    Other issue in the JavaScript Engine component. This vulnerability was fixed in Firefox 150.0.3, Firefox ESR 115.36, Firefox ESR 140.11, and Thunderbird 140.11.

  • 7.5 High severity

    Firefox: Improper Restriction of Operations within the Bounds of a Memory Buffer

    CVE-2026-8388Mozilla

    Incorrect boundary conditions in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 150.0.3, Firefox ESR 115.36, Firefox ESR 140.11, and Thunderbird 140.11.

  • 9.1 Critical severity

    OX Dovecot Pro: Improper Handling of Extra Parameters

    CVE-2026-27851Open-Xchange

    When safe filter is used with variable expansion, all following pipelines on the same string are incorrectly interpreted as safe too, enabling unsafe data to be unescaped. This can enable SQL / LDAP injection attacks when used in authentication. Avoid using sa

  • 8.8 High severity

    Safari: Improper Restriction of Operations within the Bounds of a Memory Buffer

    CVE-2026-43658Apple

    The issue was addressed with improved memory handling. This issue is fixed in Safari 26.5, iOS 18.7.10 and iPadOS 18.7.10, iOS 26.5 and iPadOS 26.5, macOS Tahoe 26.5, tvOS 26.5, visionOS 26.5, watchOS 26.5. Processing maliciously crafted web content may lead t

  • 8.8 High severity

    Safari: Improper Restriction of Operations within the Bounds of a Memory Buffer

    CVE-2026-28955Apple

    The issue was addressed with improved memory handling. This issue is fixed in Safari 26.5, iOS 18.7.9 and iPadOS 18.7.9, iOS 26.5 and iPadOS 26.5, macOS Tahoe 26.5, tvOS 26.5, visionOS 26.5, watchOS 26.5. Processing maliciously crafted web content may lead to

  • 8.8 High severity

    Safari: Improper Restriction of Operations within the Bounds of a Memory Buffer

    CVE-2026-28953Apple

    The issue was addressed with improved memory handling. This issue is fixed in Safari 26.5, iOS 18.7.9 and iPadOS 18.7.9, iOS 26.5 and iPadOS 26.5, macOS Tahoe 26.5, tvOS 26.5, visionOS 26.5, watchOS 26.5. Processing maliciously crafted web content may lead to