ghsa

### Impact urllib3's [streaming API](https://urllib3.readthedocs.io/en/2.6.2/advanced-usage.html#streaming-and-i-o) is designed for the efficient handling of large HTTP responses by reading the content in chunks, rather than loading the entire response body into memory at once. urllib3 can perform decoding or decompression based on the HTTP `Content-Encoding` header (e.g., `gzip`, `deflate`, `br`, or `zstd`). When using the streaming API, the library decompresses only the necessary bytes, enabling partial content consumption. However, for HTTP redirect responses, the library would read the entire response body to drain the connection and decompress the content unnecessarily. This decompression occurred even before any read methods were called, and configured read limits did not restrict the amount of decompressed data. As a result, there was no safeguard against decompression bombs. A malicious server could exploit this to trigger excessive resource consumption on the client (high C...

# pnpm v10+ Git Dependency Script Execution Bypass ### Summary A security bypass vulnerability in pnpm v10+ allows git-hosted dependencies to execute arbitrary code during `pnpm install`, circumventing the v10 security feature "Dependency lifecycle scripts execution disabled by default". While pnpm v10 blocks `postinstall` scripts via the `onlyBuiltDependencies` mechanism, git dependencies can still execute `prepare`, `prepublish`, and `prepack` scripts during the fetch phase, enabling remote code execution without user consent or approval. ### Details pnpm v10 introduced a security feature to disable dependency lifecycle scripts by default ([PR #8897](https://github.com/pnpm/pnpm/pull/8897)). This is implemented by setting `onlyBuiltDependencies = []` when no build policy is configured: **File:** `pkg-manager/core/src/install/extendInstallOptions.ts` (lines 290-291) ```typescript if (opts.neverBuiltDependencies == null && opts.onlyBuiltDependencies == null && opts.onlyBuiltDepend...

### Summary HTTP tarball dependencies (and git-hosted tarballs) are stored in the lockfile without integrity hashes. This allows the remote server to serve different content on each install, even when a lockfile is committed. ### Details When a package depends on an HTTP tarball URL, pnpm's tarball resolver returns only the URL without computing an integrity hash: `resolving/tarball-resolver/src/index.ts`: ```javascript return { resolution: { tarball: resolvedUrl, // No integrity field }, resolvedVia: 'url', } ``` The resulting lockfile entry has no integrity to verify: ```yaml remote-dynamic-dependency@http://example.com/pkg.tgz: resolution: {tarball: http://example.com/pkg.tgz} version: 1.0.0 ``` Since there is no integrity hash, pnpm cannot detect when the server returns different content. This affects: - HTTP/HTTPS tarball URLs (`"pkg": "https://example.com/pkg.tgz"`) - Git shorthand dependencies (`"pkg": "github:user/repo"`) - Git URLs (`"pkg": "git+https...

## Summary A command injection vulnerability exists in pnpm when using environment variable substitution in `.npmrc` configuration files with `tokenHelper` settings. An attacker who can control environment variables during pnpm operations could achieve remote code execution (RCE) in build environments. ## Affected Components - **Package**: pnpm - **Versions**: All versions using `@pnpm/config.env-replace` and `loadToken` functionality - **File**: `pnpm/network/auth-header/src/getAuthHeadersFromConfig.ts` - `loadToken()` function - **File**: `pnpm/config/config/src/readLocalConfig.ts` - `.npmrc` environment variable substitution ## Technical Details ### Vulnerability Chain 1. **Environment Variable Substitution** - `.npmrc` supports `${VAR}` syntax - Substitution occurs in `readLocalConfig()` 2. **loadToken Execution** - Uses `spawnSync(helperPath, { shell: true })` - Only validates absolute path existence 3. **Attack Flow** ``` .npmrc: registry.npmjs.org/:tokenHelpe...

### Summary A malformed gRPC `GetMetrics` request causes `get_metrics` to `unwrap()` failed deserialization of `metric_type`/`opts`, panicking the handler thread and enabling remote denial of service of the metrics endpoint. ### Details - Vulnerable code: `rustfs/src/storage/tonic_service.rs:1775-1782`: - `MetricType` and `CollectMetricsOpts` are deserialized with `Deserialize::deserialize(...).unwrap()` from client-supplied bytes. - Malformed `metric_type`/`opts` (e.g., empty or truncated rmp-serde payloads) trigger `InvalidMarkerRead` and panic. - Reachability: same TCP listener as S3 (default `:9000`); only a static interceptor token `authorization: rustfs rpc` is checked in `server/http.rs:677`. - Impact scope: panic terminates the worker handling the request, causing metrics service interruption and potential process instability. ### PoC [rustfs-grpc-metrics-invalid-metric-type-panic-poc.tar.gz](https://github.com/user-attachments/files/24038341/rustfs-grpc-metrics-invalid-...

fast-filesystem-mcp version 3.4.0 contains a critical path traversal vulnerability in its file operation tools including fast_read_file. This vulnerability arises from improper path validation that fails to resolve symbolic links to their actual physical paths. The safePath and isPathAllowed functions use path.resolve() which does not handle symlinks, allowing attackers to bypass directory access restrictions by creating symlinks within allowed directories that point to restricted system paths. When these symlinks are accessed through valid path references, the validation checks are circumvented, enabling access to unauthorized files.

A command injection vulnerability in the execute_command function of terminal-controller-mcp 0.1.7 allows attackers to execute arbitrary commands via a crafted input.

A flaw was found in the Undertow HTTP server core, which is used in WildFly, JBoss EAP, and other Java applications. The Undertow library fails to properly validate the Host header in incoming HTTP requests. As a result, requests containing malformed or malicious Host headers are processed without rejection, enabling attackers to poison caches, perform internal network scans, or hijack user sessions.

# RustFS Path Traversal Vulnerability ## Vulnerability Details - **CVE ID**: - **Severity**: Critical (CVSS estimated 9.9) - **Impact**: Arbitrary File Read/Write - **Component**: `/rustfs/rpc/read_file_stream` endpoint - **Root Cause**: Insufficient path validation in `crates/ecstore/src/disk/local.rs:1791` ### Vulnerable Code ```rust // local.rs:1791 - No path sanitization! let file_path = volume_dir.join(Path::new(&path)); // DANGEROUS! check_path_length(file_path.to_string_lossy().to_string().as_str())?; // Only checks length let mut f = self.open_file(file_path, O_RDONLY, volume_dir).await?; ``` The code uses `PathBuf::join()` without: - Canonicalization - Path boundary validation - Protection against `../` sequences - Protection against absolute paths ## Proof of Concept ### Test Environment - **Target**: RustFS v0.0.5 (Docker container) - **Endpoint**: `http://localhost:9000/rustfs/rpc/read_file_stream` - **RPC Secret**: `rustfsadmin` (from RUSTFS_SECRET_KEY) - **Disk I...

A vulnerability exists in the HTTP layer of Quarkus REST related to response handling. When a response is being written, the framework waits for previously written response chunks to be fully transmitted before proceeding. If the client connection is dropped during this waiting period, the associated worker thread is never released and becomes permanently blocked. Under sustained or repeated occurrences, this can exhaust the available worker threads, leading to degraded performance, or complete unavailability of the application. ## Workarounds For versions without the fix applied, it is recommended to implement a health check that monitors the status and saturation of the worker thread pool. This helps detect abnormal thread retention early and allows operators to take corrective action before the application’s responsiveness is impacted. ## Credits CVE reported by Shaswata Jash, Nokia