#auth

### Impact When run as a server, OPA exposes an HTTP[ Data API](https://www.openpolicyagent.org/docs/latest/rest-api/#data-api) for reading and writing documents. Requesting a virtual document through the Data API entails policy evaluation, where a Rego query containing a single data document [reference](https://www.openpolicyagent.org/docs/latest/policy-language/#references) is constructed from the requested path. This query is then used for policy evaluation. A HTTP request path can be crafted in a way that injects Rego code into the constructed query. The evaluation result cannot be made to return any other data than what is generated by the requested path, but this path can be misdirected, and the injected Rego code can be crafted to make the query succeed or fail; opening up for oracle attacks or, given the right circumstances, erroneous policy decision results. Furthermore, the injected code can be crafted to be computationally expensive, resulting in a Denial Of Service (DoS) ...

### Summary PKCE was implemented in the OAuth implementation in workers-oauth-provider that is part of[ MCP framework](https://github.com/cloudflare/workers-mcp). However, it was found that an attacker could cause the check to be skipped. ### Impact PKCE is a defense-in-depth mechanism against certain kinds of attacks and was an optional extension in OAuth 2.0 which became required in the OAuth 2.1 draft. (Note that the MCP specification requires OAuth 2.1.) This bug completely bypasses PKCE protection. ### Patches Fixed in: https://github.com/cloudflare/workers-oauth-provider/pull/27 We patched up the vulnerabilities in the latest version, v 0.0.5 of the Workers OAuth provider (https://www.npmjs.com/package/@cloudflare/workers-oauth-provider). You'll need to update your MCP servers to use that version to resolve the vulnerability. ### Workarounds None

### Summary PKCE was implemented in the OAuth implementation in workers-oauth-provider that is part of[ MCP framework](https://github.com/cloudflare/workers-mcp). However, it was found that an attacker could cause the check to be skipped. ### Impact Under certain circumstances (see below), if a victim had previously authorized with a server built on workers-oath-provider, and an attacker could later trick the victim into visiting a malicious web site, then attacker could potentially steal the victim's credentials to the same OAuth server and subsequently impersonate them. In order for the attack to be possible, the OAuth server's authorized callback must be designed to auto-approve authorizations that appear to come from an OAuth client that the victim has authorized previously. The authorization flow is not implemented by workers-oauth-provider; it is up to the application built on top to decide whether to implement such automatic re-authorization. However, many applications do impl...

Researchers found a set of vulnerabilities that puts all devices leveraging Apple's AirPlay at risk.

View CSAF 1. EXECUTIVE SUMMARY CVSS v4 9.3 ATTENTION: Exploitable remotely/low attack complexity Vendor: KUNBUS Equipment: Revolution Pi Vulnerabilities: Missing Authentication for Critical Function, Authentication Bypass by Primary Weakness, Improper Neutralization of Server-Side Includes (SSI) Within a Web Page 2. RISK EVALUATION Successful exploitation of these vulnerabilities could allow attackers to bypass authentication, gain unauthorized access to critical functions, and execute malicious server-side includes (SSI) within a web page. 3. TECHNICAL DETAILS 3.1 AFFECTED PRODUCTS The following versions of KUNBUS Revolution Pi are affected: Revolution Pi OS Bookworm: Versions 01/2025 and earlier Revolution Pi PiCtory: Versions 2.5.0 through 2.11.1 Revolution Pi PiCtory: Versions 2.11.1 and earlier 3.2 VULNERABILITY OVERVIEW 3.2.1 Missing Authentication for Critical Function CWE-306 KUNBUS Revolution Pi OS Bookworm 01/2025 is vulnerable because authentication is not configured by defa...

A misconfigured, non-password-protected database belonging to TicketToCash exposed data from 520,000 customers, including PII and partial financial details.…

These 3 cybersecurity threats may not be the most sophisticated, but they're the most effective—and serious—threats for small businesses.

Artificial intelligence (AI) company Anthropic has revealed that unknown threat actors leveraged its Claude chatbot for an "influence-as-a-service" operation to engage with authentic accounts across Facebook and X. The sophisticated activity, branded as financially-motivated, is said to have used its AI tool to orchestrate 100 distinct persons on the two social media platforms, creating a

Threat actors are bypassing MFA with adversary-in-the-middle attacks via reverse proxies. Phishing-as-a-Service tools like Evilproxy make these threats harder to detect.

Enterprise data backup platform Commvault has revealed that an unknown nation-state threat actor breached its Microsoft Azure environment by exploiting CVE-2025-3928 but emphasized there is no evidence of unauthorized data access. "This activity has affected a small number of customers we have in common with Microsoft, and we are working with those customers to provide assistance," the company