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Suspected China-nexus threat actors targeted virtual environments and used several tools and techniques to bypass security barriers and reach isolated portions of victims' networks.

International law enforcement agencies, including the FBI and Europol, have successfully seized the infrastructure of the notorious BlackSuit ransomware gang in Operation Checkmate. This article details the takedown, BlackSuit's origins, and the ongoing fight against evolving cyber threats.

#### **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...

AI malware is becoming less of a gimmick, with features that meet or exceed what traditional human-developed malware typically can do.

A stored cross-site scripting (XSS) vulnerability in CodeIgniter4 v4.6.0 allows attackers to execute arbitrary web scripts or HTML via a crafted payload injected into the debugbar_time parameter.

**What is the version information for this release?** Microsoft Edge Version Date Released Based on Chromium Version 138.0.3351.109 7/25/2025 138.0.7204.168/.169

**What is the version information for this release?** Microsoft Edge Version Date Released Based on Chromium Version 138.0.3351.109 7/25/2025 138.0.7204.168/.169

Arrests and indictments keep coming, but the North Korean fake IT worker scheme is only snowballing, and businesses can't afford to assume their applicant-screening processes are up to the task of weeding the imposters out.