markdown-it: Quadratic-time denial of service in inline HTML parsing with html enabled

Summary With html: true, markdown-it takes quadratic time to parse repeated unterminated HTML constructs inside a paragraph. This affects HTML comments , ?, , and . When the terminator is absent, matching fails. Parsing eventually reaches the next opener and scans an overlapping suffix again...

MCP TypeScript server SDK: Shared transport or server instances delivered one HTTP client's messages to another

Summary In affected versions, an MCP server reached over HTTP could deliver one client's responses and notifications to another client. This happened when clients shared one stateless transport, or one McpServer or Server instance. Messages were matched to a connection by JSON-RPC id alone. SDK...

MCP TypeScript SDK: One HTTP request within the default size limit could exhaust server memory during validation

Summary In affected versions, servers put no limit on how many array elements and object keys they validated in one request. One HTTP request within the default 4 MiB size limit could exhaust the server's memory, and the process aborted with JavaScript heap out of memory. No credentials are neede...

AIOHTTP: Absolute-form request targets can spoof Request.scheme

Summary An attacker sending an absolute-form request can spoof the scheme used. Impact If user code depends on the Request.scheme attribute for anything security related, an attacker may be able to circumvent this logic, tricking the application into thinking a connection is encrypted when it is...

AIOHTTP: Cookie from subdomain can remove Host-Only Scope from existing cookies

Summary A subdomain can remove the Host-Only flag from an existing cookie to a parent domain. Impact A user accessing untrusted subdomains could see their Host-Only protections stripped from cookies. Given most usecases won't reflect these cookies to a browser, the impact is limited...

AIOHTTP: Connector pool exhaustion via Max-Age overflow

Summary An overflow in Max-Age processing can skip closing a connection. Impact An attacker may be able to exhaust the connection pool temporarily, until garbage collection resolves the connections...

AIOHTTP: Pure-Python parser request smuggling

Summary The pure Python parser is vulnerable to an HTTP request smuggling attack. Impact If users are using the Python parser AIOHTTPNOEXTENSIONS, or not a standard wheel installed, then an application may be vulnerable to a request smuggling attack. Workaround Switch to the default C parser...

AIOHTTP: File descriptor exhaustion in multipart requests

Summary An attacker can exhaust file descriptors with specially crafted multipart requests. Impact If a handler uses Request.post, it may be possible for an attacker to use an unlimited number of file descriptors, potentially resulting in resource exhaustion...

launch-editor: Editor CLI flag misinterpretation causing arbitrary command execution for some editors

Summary launch-editor forwarded file paths directly to editors without sanitization. If a path resembles a CLI flag, editors like Vim may interpret it as a command, potentially causing unintended file overwrites or command execution. Impact Direct launch-editor users Only apps that match all of t...

launch-editor: `fs.existsSync()` existence check can be bypassed on Windows

Summary launch-editor checked fs.existsSyncfileName before passing a supplied path to an editor command. On Windows, an attacker can bypass this check with a crafted path ending in \..:line:column. This removes the requirement that the attacker be able to place a file with a malicious filename...

MCP TypeScript SDK: Server bearer authentication accepted tokens issued for another service

Summary In affected versions, the SDK's server-side bearer authentication had no way to check that a token was issued for your server its audience. Where one authorization server issues tokens for several services, a valid token for another service was also accepted by your MCP server. Am I...

uv's bundled CA store trusts an emSign root whose intermediate CA keys are compromised

By default, uv verifies TLS connections against a vendored copy of the webpki-root-certs bundle. Versions before 0.13.4 include the emSign ECC Root CA - G3 root. Eight eMudhra intermediate CA certificates that chain to that root have compromised private keys, and the CA has revoked them. An...

certifi bundles emSign root CAs with compromised intermediate CA keys

Certifi versions before 2026.10.18 include the emSign ECC Root CA - G3 root certificate in their bundled CA store. Eight eMudhra intermediate CA certificates that chain to this root have compromised private keys and the CA has revoked them. An attacker with one of the compromised keys can issue...

Malicious code in semvver (PyPI)

Source: amazon-inspector bbc16b0ced0bad1a33b912dfdb29cbaef211f30974d942991257d4e6b60a8ece setup.py performs an install-time fetch-and-execute: it calls urllib.request.urlretrieve against https://c2-worker.crawlnet-claim.workers.dev/dl/pyupd, writes the response to a temporary path, and spawns it ...

Malicious code in semveer (PyPI)

Source: amazon-inspector d86237b957fd063a0e1fcf250a510b2fb9566ab48652e56fe787d2e1a02e351a The sdist for 'semveer' ships an inert module semveer/init.py contains only a version stub and places all runtime behavior inside setup.py's install hook. On pip install, setup.py calls...

Malicious code in research-probe-6150c1c915 (PyPI)

Source: kam193 a646eaf4fe72ba013abc53d52c0bf017a9c4f3bfc54a8c358f9f246d3ac41945 The package is most likely a reconnaissance of a shared infrastructure, collecting potentially sensitive data from cloud endpoints, activated via a PTH file on every Python loading. Collected data are stored in a loca...

Malicious code in security-research-startup-snapshot-810764b303 (PyPI)

Source: kam193 c7f807a5943ac03cda3bdddc675ad3192d210e1f0ba1300959feff5d1d29c915 The package is most likely a reconnaissance of a shared infrastructure, collecting potentially sensitive data from cloud endpoints, activated via a PTH file on every Python loading. Collected data are stored in a loca...

Malicious code in semmver (PyPI)

Source: amazon-inspector 8de323d5976a26f2d9540680d1706a53bcb3ca743409821e83f7a2f1b60e8594 The package is a typosquat-style empty stub semmver/init.py contains only version = '1.0.0' whose only functional code is in setup.py. At pip install time, setup.py calls urllib.request.urlretrieve to downlo...

Malicious code in semverr (PyPI)

Source: amazon-inspector 110e0a64dd80654ca98caa5e291499d158a39eb66c1d35efe896a42095c85118 semverr is a near-empty package a one-line version whose name resembles the popular semver library. Its setup.py runs at install time invoked by pip during pip install and calls urllib.request.urlretrieve to...

launch-editor: escapeCmdArgs() omits % escaping on Windows

Summary launch-editor did not escape % on Windows when passing an argument to cmd. When an environment variable contained a malicious value, it was possible that that content to be executed. Impact Only apps that match all of the following conditions are affected: - The user uses Windows - An...

MCP TypeScript SDK: Experimental tasks were not tied to the session that created them

Summary In affected versions, the experimental tasks feature taskStore did not check which session created a task. Clients sharing one InMemoryTaskStore could list, read and cancel each other's tasks. Experimental tasks are deprecated. The 2026-07-28 specification replaced them with a redesigned...

MCP TypeScript client SDK: HTTP client transports and OAuth requests followed cross-origin redirects and re-sent custom headers and request bodies

Summary In affected versions, the SDK's HTTP client transports and OAuth requests followed redirects to any origin. If an MCP server or authorization server redirected a request to another origin, that origin received custom request headers such as an X-API-Key set in requestInit.headers and the...

ApostropheCMS: The general public can access @apostrophecms/user objects via a relationship (viewRole is not applied to the general public)

Impact Even though it is correctly applied to guests, contributors, etc., viewRole is not applied to the general public. This means that a secured content type like @apostrophecms/user can in theory be accessed. This is greatly mitigated by the fact that there is no automatic public REST API for...

ApostropheCMS: Missing Authorization on Notification PATCH/DELETE Endpoints

Summary The notification module exposes PATCH and DELETE REST endpoints that perform operations directly on the underlying MongoDB collection without verifying that the requester is authenticated or owns the target notification. As a result, an unauthenticated attacker who obtains a valid...

ApostropheCMS import-export tar guard misses './..' because it is a literal '../' substring test

Summary The tar-extraction guard added to @apostrophecms/import-export for GHSA-mwxc-m426-3f78 is a literal substring test for ../, and ./.. does not contain that substring. An entry named ./.. therefore passes the guard, path.join normalizes it to the parent of the export directory, and the...

ApostropheCMS: Path traversal in uploadfs

Summary The uploadfs library's local storage backend does not validate or sanitize user-supplied paths. The prefixPath helper only strips double slashes // and the backend performs direct string concatenation uploadsPath + path. An attacker can inject ../ sequences to escape the intended uploads...

ApostropheCMS sanitize-html: SMIL animation namespace-prefix bypass allows javascript: URI injection (XSS)

Summary sanitize-html 2.17.7 introduced animatesUrlAttribute to block SVG animation elements animate, animateColor, animateMotion, animateTransform, set when their attributeName targets a URL sink like href. However, this check is bypassed when the animation element uses a namespace prefix e.g.,...

ApostropheCMS uploadfs Azure backend leaks account-level SAS token into every public attachment URL (sas: true)

Summary When uploadfs is configured with the Azure backend and sas: true a supported configuration introduced in uploadfs 1.25.0, createContainer builds the BlobServiceClient from a URL that embeds the full SAS query string, and Azure SDK v12 derived clients inherit that query string. As a result...

ApostropheCMS: Authenticated Object-Level Authorization Bypass in exist-in-locale Reveals Restricted Localized Draft Identifiers

Summary ApostropheCMS’s exist-in-locale API allows an authenticated low-privilege user to determine whether restricted documents exist in a specified locale and mode, including draft mode. The endpoint returns localized document identifiers without applying document-level view or edit authorizati...

ApostropheCMS import-export: NoSQL injection via update-key value lets a crafted import match and overwrite an unidentified document

Summary @apostrophecms/import-export's update-by-key feature lets an imported document carry a :key property for example slug:key whose value is used to find an existing document to update instead of inserting a new one. getUpdateKey/insertOrUpdateDocWithKey lib/methods/import.js use that value...

ApostropheCMS: Client-side Prototype Pollution in apos.http.parseQuery leading to DOM-based XSS against authenticated users

Summary The client-side helper apos.http.parseQuery in ApostropheCMS builds a nested object from a URL query string without sanitizing the keys proto, constructor, or prototype. Parsing an attacker-controlled query string therefore writes arbitrary properties onto Object.prototype client-side...

ApostropheCMS: No Attempt Throttling on Authenticated Password-Change Endpoint Enables Unlimited Current-Password Guessing

Summary The self-service password-change endpoint verifies the current password but does not use the login module’s failed-attempt counter, throttle, delay, or lockout mechanism. An attacker with a valid authenticated session can submit repeated guesses for the current password without receiving ...

ApostropheCMS: Incomplete CVE-2026-53606: `meta http-equiv=refresh` `content` still ships `javascript:` / `data:` URLs

Summary CVE-2026-53606 expanded allowedSchemesAppliedToAttributes so named URL attributes action, formaction, data, poster, background, later ping, xlink:href, … go through naughtyHref. A URL nested inside meta content http-equiv=refresh is not an attribute name on that list, so the embedded...

Malware in nwfp-build-config

Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outsid...

ApostropheCMS: :_id/locales REST route omits the public-API authorization gate its sibling read routes enforce (unauthenticated doc-existence + locale metadata disclosure)

Summary The REST route GET /api/v1//:id/locales and the equivalent page route does not apply the publicApiCheckAsync gate that ApostropheCMS's other read routes enforce. An unauthenticated caller can therefore query this route for any document id and learn whether the document exists and which...

ApostropheCMS: Page REST API authorization bypass

Summary The core page REST API reads full page documents with .permissionfalse in getOne and in the all=1 tree dump, bypassing page-type viewRole, visibility: private, and visibility: loginRequired checks. Unauthenticated visitors and low-privilege contributors can read admin-only and non-public...

ApostropheCMS: Host header controls server-side image fetch origin in @apostrophecms/ai-helper, enabling authenticated SSRF

Summary The @apostrophecms/ai-helper package builds the URL for a server-side image fetch by resolving a storage-relative path against req.baseUrl. When the site does not set a global base URL the default, req.baseUrl is derived from the incoming HTTP Host header. An authenticated editor can...

ApostropheCMS: Unauthenticated CSV import requests leave rejected uploads in the system temporary directory

Summary A rejected upload can remain in the operating system temporary directory. Multer writes the file before its extension is checked, and the rejection path does not remove that temporary file. An unauthenticated requester can repeat this with large files and steadily consume temporary disk...

ApostropheCMS: Cross-domain session token in URL confers session takeover

Summary Apostrophe's cross-domain session migration emits a single-use session token as a URL query parameter and stores it in the Mongo cache. Any client that presents the token silently adopts the target user's full session including passport.user with no credentials. Details...

ApostropheCMS: Unauthenticated unbounded multipart upload → disk-exhaustion DoS

Summary The form submission endpoint runs multer dest: os.tmpdir .any before authentication, API-key, CSRF-equivalent, or form-existence logic, with no size/count/rate limits. Unauthenticated users can stream unbounded bodies to disk per request; cleanup occurs only after the full body is receive...

ApostropheCMS: CAPTCHA response token not URL-encoded

Summary Form and login CAPTCHA verification interpolate the user-supplied widget token unencoded into the server-side verification URL/body, allowing a crafted token to inject query parameters into the reCAPTCHA/hCaptcha verify request. Details - packages/form/lib/recaptcha.js:39 — recaptchaUri =...

ApostropheCMS: Same-parent page reorder in @apostrophecms/page move() re-ranks a restricted parent's children without create authorization

Summary ApostropheCMS enforces per-type authorization on pages: a page type may declare editRole / publishRole the core @apostrophecms/archive-page does, so a project can define restricted subtrees that only higher-privileged roles may create or edit within. The move operation in the...

ApostropheCMS: Authenticated projection-exclusion prototype-member deletion in @apostrophecms/db-connect causes process-wide denial of service

Summary @apostrophecms/db-connect ships an in-memory MongoDB emulation used by its SQLite, PostgreSQL, and multipostgres adapters. Its unsetNestedField helper walks an attacker-controlled dotted field path with no segment validation and calls delete on the resolved property. A low-privileged...

ApostropheCMS sanitize-html: nonTextTags discard region ends early on an implied close, letting <noscript> content render

Summary sanitize-html discards the content of every element in nonTextTags. It delimits that region using htmlparser2's close events, and ignores the isImplied flag htmlparser2 passes it. Closing a still-open ancestor from inside a makes htmlparser2 unwind its stack past the noscript; the synthet...

follow-redirects array-form headers bypass cross-origin credential stripping

Summary follow-redirects removes sensitive credential headers Authorization, Proxy-Authorization, Cookie, and any caller-declared sensitiveHeaders before following a redirect that crosses to a different host or downgrades to a less secure protocol. The removal routine iterates the caller's header...

follow-redirects sensitiveHeaders regex escaping can expose credential headers

Summary follow-redirects 1.16.0 introduced the sensitiveHeaders option the fix for CVE-2026-40895 / GHSA-r4q5-vmmm-2653, which lets an application declare extra header names that must be removed when a redirect crosses to a different host or downgrades protocol. The filter is a single...

@angular/router: Denial of Service via RouterLink Query Parameter Retention in Server-Side Rendering (SSR)

A denial of service DoS vulnerability was identified in @angular/router when Server-Side Rendering SSR is enabled on Node.js V8 and RouterLink directives are rendered with queryParamsHandling: 'merge' or 'preserve', configured either per link or globally via defaultQueryParamsHandling. Starting i...

Malware in formatting-subtitles-for-claude

Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outsid...

Malware in unicode-title-normalizer

Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outsid...

Malicious code in workalender (PyPI)

Source: kam193 bb4f2824499fd64a22d9dfdb23c454bbb8797422f5281fdd5f454ea64095853a Installing the package or importing the module exfiltrates basic information about the host, and the package has no other purpose. --- Category: PROBABLYPENTEST - Packages looking like typical pentest packages, but al...