Top Highlights
- CISA warns of active exploitation of a critical Gitea vulnerability (CVE-2026-60004) allowing remote code execution via Git hooks, affecting versions 1.17 and above.
- The flaw, linked to open registration and repository write access, enables attackers to plant malicious scripts, with some instances used to deploy cryptocurrency-mining malware.
- Attackers can register accounts, create repositories, and trigger exploits over HTTPS, even without exposing SSH; full details of the exploitation remain undisclosed.
- U.S. agencies are mandated to patch this vulnerability by August 28, 2026, amid reports of targeted campaigns and cryptojacking activities exploiting unpatched Gitea servers.
Active Exploits Target Vulnerable Gitea Servers
Recently, authorities issued warnings about a critical security flaw in Gitea, a popular platform for managing code repositories. This flaw, known as CVE-2026-60004, has a high severity score of 9.8 and is currently being exploited by hackers. The attack permits remote code execution, meaning hackers can run malicious commands on the server as if they had direct access. The problem lies in Gitea’s diffpatch feature, which can be manipulated to install harmful scripts. Because Gitea allows open registration by default, even an unregistered visitor can create an account, gaining enough permissions to trigger the exploit. Although a security patch was released in version 1.27.1, many servers still run older, vulnerable versions. The U.S. Cybersecurity Agency has categorized this flaw as actively exploited, raising concerns about its growing use in cyberattacks.
Cryptojacking Infiltration and Widespread Risks
One of the most alarming developments involves hackers using the flaw to deploy a miner-like payload. In this case, attackers created a malicious dropper script that took over resources, causing infected servers to use more than 70% of their processing capacity. This specific attack aimed to secretly mine cryptocurrencies, a common form of cryptojacking. The attacker started by clearing system memory, then searched for processes consuming high CPU power, and attempted to kill competing processes. Next, they downloaded the malicious payload suited to the system and executed it, all while removing traces afterward. Importantly, the attack was carried out without exposing Gitea’s SSH port, relying solely on the open HTTPS registration feature. Although the exact nature of the payload remains unknown, the activity aligns with recent cryptojacking campaigns targeting vulnerable software. As organizations begin to patch their systems, the widespread adoption of such exploits could lead to increased resource drain and potential loss of performance, highlighting the importance of timely updates in the ongoing fight against cyber threats.
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