#git

#### **Overview** A critical vulnerability has been identified in the `tj-actions/branch-names` GitHub Action workflow which allows arbitrary command execution in downstream workflows. This issue arises due to inconsistent input sanitization and unescaped output, enabling malicious actors to exploit specially crafted branch names or tags. While internal sanitization mechanisms have been implemented, the action outputs remain vulnerable, exposing consuming workflows to significant security risks. #### **Technical Details** The vulnerability stems from the unsafe use of the `eval printf "%s"` pattern within the action's codebase. Although initial sanitization using `printf "%q"` properly escapes untrusted input, subsequent unescaping via `eval printf "%s"` reintroduces command injection risks. This unsafe pattern is demonstrated in the following code snippet: ```bash echo "base_ref_branch=$(eval printf "%s" "$BASE_REF")" >> "$GITHUB_OUTPUT" echo "head_ref_branch=$(eval printf "%s" "$...

## Summary An inconsistency in `MethodNode` can be exploited to access unexpected object fields through dot notation. This can be used to achieve **arbitrary code execution at load time**. While this issue may seem similar to https://github.com/skops-dev/skops/security/advisories/GHSA-m7f4-hrc6-fwg3, it is actually more severe, as it relies on fewer assumptions about trusted types. ## Details The `MethodNode` allows access to attributes of existing objects via dot notation. However, there are several critical shortcomings: * Although the `__class__` and `__module__` fields are checked via `get_untrusted_types` and during the `load` phase (as a concatenated string), **they are not actually used by `MethodNode`**. Instead, the `func` and `obj` entries in the `schema.json` are used to determine behavior. This means that even an apparently harmless `__module__.__class__` pair can lead to access of arbitrary attributes or methods of loaded objects, without any additional checks. * **...

## Summary An inconsistency in `OperatorFuncNode` can be exploited to hide the execution of untrusted `operator.xxx` methods. This can then be used in a code reuse attack to invoke seemingly safe functions and escalate to arbitrary code execution with minimal and misleading trusted types. **Note:** This report focuses on `operator.call` as it appears to be the most interesting target, but the same technique applies to other `operator` methods. Moreover, please do not focus too much on the specific example used to hide the `operator.call` invocation—it was a zero-effort choice meant solely to demonstrate the issue. The key point is the **inconsistency** that allows a user to approve a type as trusted, while in reality enabling the execution of `operator.xxx`. ## Details The `OperatorFuncNode` allows calling methods belonging to the `operator` module and included in a trusted list of methods. However, what is returned by `get_untrusted_types` and checked during the `load` call is no...

Medusa Ransomware breached NASCAR, demanded $4 million, leaked sensitive data including maps and staff info, exposing major security failures. The incident was exclusively reported by Hackread.com.

A cybercriminal managed to insert malicious files leading to info stealers in a pre-release of a game on the Steam platform

**Path-Traversal -> Arbitrary File Write in Assemblyline Service Client** --- ## 1. Summary The Assemblyline 4 **service client** (`task_handler.py`) accepts a SHA-256 value returned by the service **server** and uses it directly as a local file name. > No validation / sanitisation is performed. A **malicious or compromised server** (or any MITM that can speak to client) can return a path-traversal payload such as `../../../etc/cron.d/evil` and force the client to write the downloaded bytes to an arbitrary location on disk. --- ## 2. Affected Versions | Item | Value | |---|---| | **Component** | `assemblyline-service-client` | | **Repository** | [CybercentreCanada/assemblyline-service-client](https://github.com/CybercentreCanada/assemblyline-service-client) | | **Affected** | **All releases up to master branch.** | --- ## 4. Technical Details | Field | Content | |---|---| | **Location** | `assemblyline_service_client/task_handler.py`, inside `download_file()` | | **V...

A hacker injected a malicious prompt into Amazon Q via GitHub, aiming to delete user files and wipe AWS data, exposing a major security flaw.

Phishers are using legitimate looking Instagram emails in order to scam users.

Chennai, India, 25th July 2025, CyberNewsWire

Starting today, UK adults will have to prove their age to access porn online. Experts warn that a global wave of age-check laws threatens to chill speech and ultimately harm children and adults alike.