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A critical security flaw has been disclosed in the Next.js React framework that could be potentially exploited to bypass authorization checks under certain conditions. The vulnerability, tracked as CVE-2025-29927 , carries a CVSS score of 9.1 out of 10.0. "Next.js uses an internal header x-middleware-subrequest to prevent recursive requests from triggering infinite loops," Next.js said in an advisory.  "It was possible to skip running middleware , which could allow requests to skip critical checks—such as authorization cookie validation—before reaching routes." It's worth noting that CVE-2025-29927 impacts only self-hosted versions that use "next start" with "output: standalone." Next.js apps hosted on Vercel and Netlify, or deployed as static exports, are not affected. The shortcoming has been addressed in versions 12.3.5, 13.5.9, 14.2.25, and 15.2.3. If patching is not an option, it's recommended that users prevent external user ...

The supply chain attack involving the GitHub Action "tj-actions/changed-files" started as a highly-targeted attack against one of Coinbase's open-source projects, before evolving into something more widespread in scope. "The payload was focused on exploiting the public CI/CD flow of one of their open source projects – agentkit, probably with the purpose of leveraging it for further compromises," Palo Alto Networks Unit 42 said in a report. "However, the attacker was not able to use Coinbase secrets or publish packages." The incident came to light on March 14, 2025, when it was found that "tj-actions/changed-files" was compromised to inject code that leaked sensitive secrets from repositories that ran the workflow. It has been assigned the CVE identifier CVE-2025-30066 (CVSS score: 8.6). According to Endor Labs, 218 GitHub repositories are estimated to have exposed their secrets due to the supply chain attack, and a majority of the leak...

The U.S. Treasury Department has announced that it's removing sanctions against Tornado Cash, a cryptocurrency mixer service that has been accused of aiding the North Korea-linked Lazarus Group to launder their ill-gotten proceeds. "Based on the Administration's review of the novel legal and policy issues raised by use of financial sanctions against financial and commercial activity occurring within evolving technology and legal environments, we have exercised our discretion to remove the economic sanctions against Tornado Cash," the Treasury said in a statement. In conjunction with the move, over 100 Ethereum (ETH) wallet addresses are also being removed from the Specially Designated Nationals (SDN) list. The department's Office of Foreign Assets Control (OFAC) added Tornado Cash to its sanctions list in August 2022. It was estimated to have been used to launder more than $7.6 billion worth of virtual assets since its creation in 2019, the Treasury said a...

Threat hunters have uncovered a new threat actor named UAT-5918 that has been attacking critical infrastructure entities in Taiwan since at least 2023. "UAT-5918, a threat actor believed to be motivated by establishing long-term access for information theft, uses a combination of web shells and open-sourced tooling to conduct post-compromise activities to establish persistence in victim environments for information theft and credential harvesting," Cisco Talos researchers Jungsoo An, Asheer Malhotra, Brandon White, and Vitor Ventura said . Besides critical infrastructure, some of the other targeted verticals include information technology, telecommunications, academia, and healthcare. Assessed to be an advanced persistent threat (APT) group looking to establish long-term persistent access in victim environments, UAT-5918 is said to share tactical overlaps with several Chinese hacking crews tracked as Volt Typhoon , Flax Typhoon , Tropic Trooper , Earth Estries , and Dalb...

The threat actors behind the Medusa ransomware-as-a-service (RaaS) operation have been observed using a malicious driver dubbed ABYSSWORKER as part of a bring your own vulnerable driver ( BYOVD ) attack designed to disable anti-malware tools. Elastic Security Labs said it observed a Medusa ransomware attack that delivered the encryptor by means of a loader packed using a packer-as-a-service (PaaS) called HeartCrypt. "This loader was deployed alongside a revoked certificate-signed driver from a Chinese vendor we named ABYSSWORKER, which it installs on the victim machine and then uses to target and silence different EDR vendors," the company said in a report. The driver in question, "smuol.sys," mimics a legitimate CrowdStrike Falcon driver ("CSAgent.sys"). Dozens of ABYSSWORKER artifacts have been detected on the VirusTotal platform dating from August 8, 2024, to February 25, 2025. All the identified samples are signed using likely stolen, revoked ce...