Siyuan: Authenticated path traversal in /snippets/ static handler (serveSnippets) leaks conf/conf.json secrets and siyuan.db

Reporter: Cavan Loughran, Celvex Group Inc. Summary ------- The /snippets/filepath route handler serveSnippets in kernel/server/serve.go performs a bare filepath.Joinutil.SnippetsPath, filePath on the single-decoded c.Request.URL.Path and serves the result with c.File, with NO IsSubPath containme...

SiYuan: SQL Query in Block Search Exposes Hidden Published Document Content

Summary Siyuan's block search endpoint concatenates attacker-controlled paths values into SQL predicates used by non-SQL search modes. Through Siyuan's publish service, an unauthenticated visitor is forwarded to the kernel with a reader-role token and can reach POST /api/search/fullTextSearchBloc...

gRPC-Go: Heap Memory Exhaustion (OOM) via HTTP/2 DATA Frame Fragmentation

Impact An unauthenticated remote attacker can initiate a gRPC stream and purposefully fragment their payload into millions of tiny e.g., 1-byte HTTP/2 DATA frames. Even if the total payload volume falls within the configured connection and stream flow-control windows, each independent fragment...

TYPO3 CMS - Broken Access Control in Backend and Install Tool

Problem The referrer enforcement introduced with TYPO3-CORE-SA-2020-006 CVE-2020-11069 became ineffective in TYPO3 v13.0, where TYPO3 CMS started serving the backend and Admin Tool applications from the site's main entry script instead of the dedicated typo3/ directory. Whether a request originat...

Filament: Multi-factor authentication (app) codes can still be used after a newer code has been used

A flaw in the handling of one-time codes for app-based multi-factor authentication allows a previously issued code to be used after a newer code has already been accepted. This issue does not affect email-based MFA. Submitting the exact same code twice was already prevented, but any other code...

Filament: Password validity disclosure for accounts denied panel access on login page

When multi-factor authentication is enabled, the login page presents the multi-factor challenge before evaluating canAccessPanel. For an account that canAccessPanel denies, submitting the correct password renders the challenge while an incorrect password returns the generic failure message,...

Filament: Multi-factor authentication (app) can be bypassed when recovery codes are enabled

A flaw in the challenge handling for app-based multi-factor authentication allows the second factor to be bypassed. This issue does not affect email-based MFA. It also only applies when recovery codes are enabled...

pypdf: Possible long runtimes/large memory usage when retrieving outlines

Impact An attacker who uses this vulnerability can craft a PDF which leads to long runtimes and large memory consumption. This requires accessing the outlines of a document with either lots of entries or nested outlines with long re-used nesting paths. Patches This has been fixed in pypdf==6.16.1...

pypdf: Possible long runtimes/large memory usage when extracting XForm objects

Impact An attacker who uses this vulnerability can craft a PDF which leads to long runtimes and large memory consumption. This requires extracting the text of a page with lots of XForm objects, where some of them might be re-used. Patches This has been fixed in pypdf==6.16.1. Workarounds If you...

pypdf: Possible infinite loop for TreeObject.insert_child

Impact An attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This requires a usually writing code path where TreeObject.insertchild is involved. Patches This has been fixed in pypdf==6.16.0. Workarounds If you cannot upgrade yet, consider applying the changes fr...

sqlparse: Reindentation of tuple lists causes near-cap quadratic CPU consumption

Summary When SQL is formatted with reindentation enabled, ReindentFilter repeatedly rebuilds prefixes of the current statement to calculate token offsets. An attacker who controls SQL sent to this opt-in formatting path can supply a parenthesized tuple list that remains just below the...

ApostropheCMS: Stored XSS via SVG SMIL URI-list scheme-policy bypass

Summary When SVG animation is allowed, attributeName="href" makes values a list of URL destinations. sanitize-html accepts a list that starts with a safe fragment even when values is explicitly scheme-checked, allowing a later javascript: destination to execute when the sanitized link is activate...

NLTK: JVM argument injection bypass via per-call options in the NLTK Stanford wrappers (incomplete fix of CVE-2026-12841)

Vulnerability The fix for CVE-2026-12841 CWE-88, JVM argument injection added validatejavaoptions to block dangerous JVM flags such as -agentlib, -agentpath, -javaagent, -Xrunjdwp, and @argfile references. However, the validation is only applied when setting global options via configjava. The jav...

league/commonmark: Denial of service via distinctly-named attributes in the Attributes extension

Impact AttributesExtension ships with the library but must be explicitly registered on the Environment; it is not included in CommonMarkConverter, GithubFlavoredMarkdownConverter, or GithubFlavoredMarkdownExtension. Applications that do not register AttributesExtension are not affected by this...

NLTK: Uncontrolled search path when invoking the Graphviz 'dot' binary

Two NLTK sites executed the Graphviz dot program by bare name, so process creation resolved it via the search path — and on Windows via the current working directory — rather than a validated absolute location. An attacker who can place a file named dot where resolution looks the CWD on Windows, ...

league/commonmark: Denial of service in the SmartPunct and Attributes extensions

Impact Two first-party extensions contain quadratic parsing paths. Both ship with the library but must be explicitly registered on the Environment; neither is included in CommonMarkConverter, GithubFlavoredMarkdownConverter, or GithubFlavoredMarkdownExtension. Applications that do not register...

league/commonmark XSS: `on*` event-handler filter in `AttributesExtension` bypassed with a U+000C form feed

Summary The AttributesExtension documents a security guarantee: Note: Attributes starting with on e.g. onclick or onerror are capable of executing JavaScript code and are therefore never allowed by default. You must explicitly add them to the allow list if you want to use them. —...

league/commonmark: Denial of service via crafted code fences, reference links, and emphasis delimiters

Impact Affected versions of league/commonmark perform super-linear work on three independent parsing paths, all of which are reachable on a stock new CommonMarkConverter with default configuration and no extensions registered. Each trigger fits on a single line of input, so no complex Markdown...

tornado: multipart split() creates huge temp list before max_parts check -> memory amplification DoS (httputil.py:34)

Description Summary parsemultipartformdata httputil.py:34 calls data.splitb"--"+boundary+b"\r\n" before the maxparts check :35. A 600KB body with 100k parts creates a 100k-element transient list first, then rejects transient memory amplification each split element is a copy. Pre-auth HTTP DoS. Ro...

Tornado: Incomplete fix for CVE-2026-35536: cookie attribute injection re-opened via the legacy case-insensitive `**kwargs` path in `set_cookie`

Summary The CVE-2026-35536 fix added a validation loop that rejects \x00-\x20\x3b\x7f, but only for the hardcoded lowercase keys name/domain/path/samesite. The still-live deprecated kwargs path writes attacker-supplied attribute values straight into the Morsel with no validation, and because...

Django REST framework: Potential bypass of Django `DATA_UPLOAD_MAX_MEMORY_SIZE` when parsing oversized JSON and urlencoded request bodies via DRF `request.data`

Summary While investigating Django REST Framework's request parsing behavior, I identified that DRF's high-level request.data parsing appears to bypass Django's configured DATAUPLOADMAXMEMORYSIZE protection for application/json and application/x-www-form-urlencoded request bodies. In the tested...

Django REST framework: AdminRenderer may disclose GET-protected data when rendering invalid write requests

Summary AdminRenderer may disclose data that would normally be protected by GET permissions when rendering a 400 Bad Request response for an invalid write request. If a view allows POST or another write method but denies GET, an invalid request rendered through AdminRenderer can invoke the view's...

nanoid: Integer Overflow or Wraparound

Summary An integer overflow in nanoidsize permanently corrupts the process-wide CSPRNG pool, causing all subsequent ID generation to return the deterministic string "uuuuuuuuuuuuuuuuuuuuu". Any application that passes user-influenced values to the size parameter loses all randomness guarantees fo...

pnpm: Environment secrets exfiltrated via env-placeholder expansion in proxy settings read from an untrusted pnpm-workspace.yaml

Summary pnpm expands $VAR environment placeholders in the httpProxy / httpsProxy / noProxy settings read from a project's pnpm-workspace.yaml. Because a project manifest is repository-controlled, a malicious repository that a victim merely clones and runs pnpm install in can route all install...

pnpm: pacquet trust-lockfile install can create dependency symlinks outside the project

Summary A crafted lockfile alias could reach several install-time filesystem joins. With --trust-lockfile or a frozen lockfile, traversal segments could create links outside the intended project or nodemodules boundary. This patch validates dependency names and every virtual-store slot before...

Appium: Reflected XSS / arbitrary JS in @appium/base-driver /test/guinea-pig* routes

Summary Appium's base-driver mounts the built-in /test/guinea-pig, /test/guinea-pig-scrollable and /test/guinea-pig-app-banner routes unconditionally on every server. The handler reflects the throwError query param, the comments POST field, and the User-Agent request header into the returned HTML...

MLFLOW_ALLOW_PICKLE_DESERIALIZATION=False safety control bypassed by mlflow.statsmodels flavor — RCE via crafted model artifact

Summary MLflow introduced MLFLOWALLOWPICKLEDESERIALIZATION as a security control to prevent unsafe pickle.load execution during model loading, in response to CVE-2024-37052 through CVE-2024-37060. When set to False, operators expect all pickle deserialization to be blocked. The most recent relate...

Browserslist: Unbounded memory growth (no cache eviction) via distinct query results, leading to eventual OOM

Vulnerability Details File: index.js Location: cache browserslist's result cache, line 402 and parseCache parseQueries's AST cache Root Cause js var cache = var parseCache = function browserslistqueries, opts ... var cacheKey = JSON.stringifyqueries, context if cachecacheKey return cachecacheKey...

Browserslist: Uncaught crash / prototype write via untrusted browserslist-stats.json custom stats (normalizeStats)

Vulnerability Details File: node.js Function: normalizeStats line 214, reached from getStat called unconditionally on every browserslist call and loadStat Root Cause js function normalizeStatsdata, stats if !data data = if stats && 'dataByBrowser' in stats stats = stats.dataByBrowser if typeof...

MySQL2: Auth Plugin Downgrade to mysql_clear_password Leaks Plaintext Credentials

Summary A rogue MySQL server or MITM can force mysql2 to send credentials in plaintext by requesting an auth switch to mysqlclearpassword. The driver complies without verifying that TLS is active. Details mysqlclearpassword is registered as a default standard plugin in lib/commands/authswitch.js...

Smarty: SSRF via redirect bypass of trusted_uri using {fetch}

When a Security policy is active, fetch validates the requested remote URL against the trusteduri allowlist via Security::isTrustedUri. For non-http:// schemes e.g. https:// the resource was then read with filegetcontents, which follows HTTP redirects by default. Because isTrustedUri only validat...

Kirby: System path exposure from error messages in the REST API

TL;DR This vulnerability affects all Kirby sites that have not disabled the REST API with the 'api' = false option. It was possible to trigger a PHP error in the API backend that would expose the full filesystem path of the Kirby installation on the server. This could be used to guess the default...

MySQL2: Unbounded zlib inflate in compressed MySQL protocol handler allows decompression-bomb DoS

Vulnerability Details File: lib/compressedprotocol.js Line: 43 zlib.inflatebody, err, data = ... inside handleCompressedPacket Root Cause When a connection is created with compress: true and the server advertises CLIENTCOMPRESS, every incoming packet is unwrapped by handleCompressedPacket in...

Kirby: File upload permissions are not checked during processing of chunk data

TL;DR This vulnerability affects all Kirby sites where users of a particular role have access to the REST API access.panel permission is enabled but no permission to upload any kind of file files.create, files.replace and user/users.update permissions are all disabled. It was possible to fill up...

Kirby: Access to image files and limited access to JSON files outside of the site root via path traversal in the media handling

TL;DR This vulnerability affects all Kirby sites that are deployed to a server that allows requests for URLs with encoded slashes %2f, such as nginx, PHP's built-in server or Apache setups that have the option AllowEncodedSlashes enabled. It was possible to create and access thumbnails from media...

decode-uri-component: Denial of service via exponential decoding of malformed percent-encoded input

Impact An attacker who can supply input to decodeUriComponent directly or via a dependency that uses this package on URL/query/path data can cause excessive CPU usage and application unresponsiveness. This is an availability issue; there is no known memory corruption, data disclosure, or remote...

Duplicate Advisory: ReDoS in nltk.tgrep via unvalidated user-supplied regular expressions

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-w3v8-gmh9-3wv7. This link is maintained to preserve external references. Original Description NLTK before 3.10.3 contains a regular expression denial of service ReDoS vulnerability in the tgrep module. The...

Socket.IO: Engine.IO WebTransport SID DoS

Impact Engine.IO servers with WebTransport enabled are vulnerable to a remotely triggerable denial of service. A malicious unauthenticated client can send a crafted WebTransport upgrade request containing a specially chosen session ID, such as proto. Because the session ID lookup did not properly...

@hono/oauth-providers: OAuth state check fails open on omitted state, enabling login CSRF and forced account linking

Summary The built-in social login providers accept an OAuth callback even when the state value is absent on both sides, so the anti-CSRF check passes for a callback that never came from a genuine login attempt. This defeats the state-based CSRF protection under default usage. Details The state...

elFinder: SSRF protection bypass via DNS rebinding in the `fsock_get_contents()` fallback

poc.zip Summary elFinder 2.1.69 is vulnerable to a Server-Side Request Forgery SSRF protection bypass when PHP cURL is unavailable and URL uploads use the fsockgetcontents fallback. An attacker who can submit a URL for server-side upload can use an attacker-controlled DNS hostname that initially...

TYPO3 CMS - Unrestricted File Upload in Form Framework

Problem Users were able to upload files with arbitrary MIME types to forms using FileUpload or ImageUpload elements with allowedMimeTypes configured - uploading PHP files was not possible. The restriction was not enforced server-side because the MimeTypeValidator was registered during form buildi...

Duplicate Advisory: Nodemailer: Message-level raw option bypasses disableFileAccess/disableUrlAccess, enabling arbitrary file read and full-response SSRF in the delivered message

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-p6gq-j5cr-w38f. This link is maintained to preserve external references. Original Description nodemailer before 9.0.1 fails to apply disableFileAccess and disableUrlAccess flags to message-level raw option,...

MariaDB has possible SQL injection in Buffer parameter escaping under big5/gbk/sjis/cp932/gb18030 client charsets

Summary A SQL injection is possible when the connector escapes Buffer parameters client-side under a multi-byte client character set whose trail-byte range overlaps the ASCII backslash 0x5C: big5, gbk, sjis, cp932, and gb18030. Under these charsets, an attacker-controlled lead byte can absorb the...

RestrictedPython guard hooks can be shadowed via positional-only arguments

Impact RestrictedPython rewrites sensitive operations to go through guard hooks. Attribute access becomes getattrobj, name, item access becomes getitemobj, key, writes go through write, and print goes through print. The embedding application supplies these hooks to enforce its policy. Argument-na...

org.mariadb:r2dbc-mariadb vulnerable to cleartext password disclosure to a man-in-the-middle server (clear-text auth plugins not gated on a secure transport)

Summary The connector does not gate clear-text password authentication plugins on transport encryption. A hostile or man-in-the-middle MariaDB server can request a clear-text plugin over an unencrypted plain-TCP connection, and the driver responds with the user's password in cleartext on the wire...

org.mariadb:r2dbc-mariadb has Inappropriate Encoding for Output Context and Improper Encoding or Escaping of Output

Summary The connector encodes and decodes all character data assuming the connection character set is UTF-8. A server can change charactersetclient mid-session to a non-UTF-8 charset, after which the driver and server interpret the same bytes under different encodings, causing silent data...

org.mariadb.jdbc:mariadb-java-client has Inappropriate Encoding for Output Context

Summary The connector encodes and decodes all character data assuming the connection character set is UTF-8. A server can change charactersetclient mid-session to a non-UTF-8 charset, after which the driver and server interpret the same bytes under different encodings, causing silent data...

org.mariadb.jdbc:mariadb-java-client has Cleartext Transmission of Sensitive Information and Insufficiently Protected Credentials

Summary When PAM dialog authentication is used, the connector can be coerced into sending the account password in cleartext over an insecure connection. A hostile or man-in-the-middle server can trigger this with the default configuration, disclosing the user's password. Details The...

MariaDB has cleartext password disclosure to a MITM on the initial-handshake

Summary When a Java application connects with sslMode=verify-full or verify-ca and a password but does not pin a server certificate, Connector/J deliberately accepts an untrusted/self-signed certificate at the TLS layer the "MITM-proof without a CA" feature and proves the server's identity...

Snipe-IT has an Improper Privilege Management issue

Impact The update method in UsersController passes the permission request field unconditionally to NormalizePermissionsPayloadAction, which returns an empty array when the field is absent. The result is passed to PreserveUnauthorizedPrivilegedPermissionsAction, which selectively restores only the...