{"description":"Trending threats, MITRE ATT\u0026CK coverage, and detection metadata — refreshed continuously.","feed_url":"https://feed.craftedsignal.io/tags/kiro-ide/","home_page_url":"https://feed.craftedsignal.io/","items":[{"_cs_actors":[],"_cs_cves":[{"cvss":7.8,"id":"CVE-2026-5429"}],"_cs_exploited":false,"_cs_products":[],"_cs_severities":["high"],"_cs_tags":["cve","cve-2026-5429","code-execution","kiro-ide"],"_cs_type":"advisory","_cs_vendors":[],"content_html":"\u003cp\u003eCVE-2026-5429 is a critical vulnerability affecting Kiro IDE versions prior to 0.8.140. The flaw stems from unsanitized input during web page generation within the Kiro Agent webview. A remote, unauthenticated attacker can exploit this by crafting a malicious color theme name. When a user opens a workspace containing this crafted theme, it could lead to arbitrary code execution on the user\u0026rsquo;s machine. Successful exploitation requires the user to trust the workspace prompt, indicating a social engineering element. The vulnerability poses a significant risk as it allows for potential system compromise if a user opens a maliciously crafted workspace. Users are advised to upgrade to version 0.8.140 to mitigate this risk.\u003c/p\u003e\n\u003ch2 id=\"attack-chain\"\u003eAttack Chain\u003c/h2\u003e\n\u003col\u003e\n\u003cli\u003eAttacker crafts a malicious Kiro IDE workspace containing a specially crafted color theme name designed to inject arbitrary code.\u003c/li\u003e\n\u003cli\u003eThe malicious workspace is distributed to a target user via social engineering or other means.\u003c/li\u003e\n\u003cli\u003eThe user opens the workspace within a vulnerable version of Kiro IDE (prior to 0.8.140).\u003c/li\u003e\n\u003cli\u003eKiro IDE attempts to load the crafted color theme name within the Kiro Agent webview.\u003c/li\u003e\n\u003cli\u003eDue to the lack of proper sanitization, the malicious code embedded within the color theme name is executed in the context of the webview.\u003c/li\u003e\n\u003cli\u003eThe attacker achieves arbitrary code execution on the user\u0026rsquo;s system due to the exploited vulnerability.\u003c/li\u003e\n\u003cli\u003eThe attacker leverages the initial code execution to escalate privileges or install persistent backdoors.\u003c/li\u003e\n\u003cli\u003eThe attacker gains complete control over the user\u0026rsquo;s system, enabling data exfiltration, further lateral movement, or other malicious activities.\u003c/li\u003e\n\u003c/ol\u003e\n\u003ch2 id=\"impact\"\u003eImpact\u003c/h2\u003e\n\u003cp\u003eSuccessful exploitation of CVE-2026-5429 can lead to arbitrary code execution on a developer\u0026rsquo;s machine. This can lead to full system compromise, including sensitive source code theft, credentials compromise, and supply chain attacks if the compromised machine is used to build and deploy software. The vulnerability impacts any user running Kiro IDE versions before 0.8.140 who opens a malicious workspace. The scope and number of potential victims are large, as it affects all users of the vulnerable versions of the Kiro IDE.\u003c/p\u003e\n\u003ch2 id=\"recommendation\"\u003eRecommendation\u003c/h2\u003e\n\u003cul\u003e\n\u003cli\u003eImmediately upgrade Kiro IDE to version 0.8.140 or later to patch CVE-2026-5429 as recommended by the vendor.\u003c/li\u003e\n\u003cli\u003eImplement user awareness training to educate users about the risks of opening untrusted workspaces and trusting prompts within Kiro IDE.\u003c/li\u003e\n\u003cli\u003eMonitor process creation events for suspicious activity originating from Kiro IDE processes after a workspace is opened, using the detection rule below.\u003c/li\u003e\n\u003cli\u003eDeploy the provided Sigma rules to your SIEM to detect potential exploitation attempts within your environment.\u003c/li\u003e\n\u003c/ul\u003e\n","date_modified":"2026-04-02T19:21:37Z","date_published":"2026-04-02T19:21:37Z","id":"/briefs/2026-04-kiro-ide-code-exec/","summary":"CVE-2026-5429 is a code execution vulnerability in Kiro IDE before version 0.8.140 that allows a remote, unauthenticated attacker to execute arbitrary code by exploiting a crafted color theme name when a local user opens a workspace.","title":"Kiro IDE Code Execution Vulnerability via Crafted Color Theme (CVE-2026-5429)","url":"https://feed.craftedsignal.io/briefs/2026-04-kiro-ide-code-exec/"}],"language":"en","title":"CraftedSignal Threat Feed — Kiro-Ide","version":"https://jsonfeed.org/version/1.1"}