High severity7.8NVD Advisory· Published Mar 31, 2026· Updated May 10, 2026
CVE-2026-22561
CVE-2026-22561
Description
Uncontrolled search path elements in Anthropic Claude for Windows installer (Claude Setup.exe) versions prior to 1.1.3363 allow local privilege escalation via DLL search-order hijacking. The installer loads DLLs (e.g., profapi.dll) from its own directory after UAC elevation, enabling arbitrary code execution if a malicious DLL is planted alongside the installer.
Affected products
1Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
1- trust.anthropic.com/resourcesnvdVendor Advisory
News mentions
50- The Boring Stuff is Dangerous NowDark Reading · May 18, 2026
- [Guest Diary] New Malware Libraries means New Signatures, (Fri, May 15th)SANS Internet Storm Center · May 15, 2026
- How Dangerous Is Anthropic’s Mythos AI?Schneier on Security · May 14, 2026
- Microsoft’s WinUI agent plugin trims token use by over 70% during developmentHelp Net Security · May 14, 2026
- AI models are getting better at replacing cybersecurity pros on certain tasksThe Register Security · May 14, 2026
- Welcome to the vulnpocalypse, as vendors use AI to find bugs and patches multiply like rabbitsThe Register Security · May 13, 2026
- OpenAI’s GPT-5.5 is as Good as Mythos at Finding Security VulnerabilitiesSchneier on Security · May 13, 2026
- Risky Business #837 -- GitHub Actions footgun claims TanStackRisky Business · May 13, 2026
- Fake Claude search results lure Mac users into ClickFix attackMalwarebytes Labs · May 12, 2026
- Claude Mythos Finds Only One Curl Vulnerability; Experts Divided on What It Really MeansSecurityWeek · May 12, 2026
- Cookie thieves caught stealing dev secrets via fake Claude Code installersThe Register Security · May 11, 2026
- 11th May – Threat Intelligence ReportCheck Point Research · May 11, 2026
- Hackers abuse Google ads, Claude.ai chats to push Mac malwareBleepingComputer · May 10, 2026
- Why the approaching flood of vulnerabilities changes everything — and what to do about itTenable Blog · May 8, 2026
- Zero Chaos: Scaling Detection Engineering at the Speed of Software, with Detection As CodeRapid7 Blog · May 8, 2026
- Snyk integrates Claude to advance AI-native application securityHelp Net Security · May 8, 2026
- Vulnerability in Claude Extension for Chrome Exposes AI Agent to TakeoverSecurityWeek · May 8, 2026
- Anthropic response to 1-click pwn: Shouldn't have clicked 'ok'The Register Security · May 7, 2026
- 'TrustFall' Convention Exposes Claude Code Execution RiskDark Reading · May 7, 2026
- Claude AI Guided Hackers Toward OT Assets During Water Utility IntrusionSecurityWeek · May 7, 2026
- An Adaptive Cyber Analytics UI for Web Honeypot Logs [Guest Diary], (Wed, May 6th)SANS Internet Storm Center · May 7, 2026
- Google Chrome’s silent 4GB AI download problem [updated]Malwarebytes Labs · May 6, 2026
- Sysdig delivers cloud security that runs inside AI coding agentsHelp Net Security · May 6, 2026
- ServiceNow clears agents for landing with new AI control towerThe Register Security · May 5, 2026
- TeamPCP Weekly Analysis: 2026-W18 (2026-04-27 through 2026-05-03), (Mon, May 4th)SANS Internet Storm Center · May 4, 2026
- 4th May – Threat Intelligence ReportCheck Point Research · May 4, 2026
- Thousands of Facebook accounts stolen by phishing emails sent through GoogleMalwarebytes Labs · May 4, 2026
- Claude Security enters public beta with Opus 4.7 vulnerability scanning and patchingHelp Net Security · May 4, 2026
- Lens Agents brings policy control to AI across cloud and desktopHelp Net Security · May 4, 2026
- A week in security (April 27 – May 3)Malwarebytes Labs · May 4, 2026
- Brace for the patch tsunami: AI is unearthing decades of buried code debtThe Register Security · May 2, 2026
- Metasploit Wrap-Up 05/01/2026Rapid7 Blog · May 1, 2026
- The Good, the Bad and the Ugly in Cybersecurity – Week 18SentinelOne Labs · May 1, 2026
- Vulnerability remediation: Match CVEs to asset owners in seconds with Tenable Hexa AITenable Blog · May 1, 2026
- Introducing Dynamic Workflows: durable execution that follows the tenantCloudflare Blog · May 1, 2026
- OpenAI locks GPT-5.5-Cyber behind velvet rope despite slamming Anthropic for doing exactly thatThe Register Security · May 1, 2026
- Bridging the gap: How to integrate Claude Security into the Tenable One Exposure Management PlatformTenable Blog · Apr 30, 2026
- Anthropic Unveils Claude Security to Counter AI-Powered Exploit SurgeSecurityWeek · Apr 30, 2026
- Wordfence Intelligence Weekly WordPress Vulnerability Report (April 20, 2026 to April 26, 2026)Wordfence Blog · Apr 30, 2026
- Claude Mythos Fears Startle Japan's Financial Services SectorDark Reading · Apr 30, 2026
- New Wave of DPRK Attacks Uses AI-Inserted npm Malware, Fake Firms, and RATsThe Hacker News · Apr 29, 2026
- GitHub: Zounds, a genuinely helpful AI-assisted bug report that isn't total slop! Here, Wiz, take this wad of cashThe Register Security · Apr 29, 2026
- GitHub: Zounds, a genuinely helpful AI-assisted bug report that isn't total slop! Here, Wiz, take this wad of cashThe Register Security · Apr 29, 2026
- Mastering agentic AI security through exposure managementTenable Blog · Apr 29, 2026
- Scam-checking just got a lot easier: Malwarebytes is now in ClaudeMalwarebytes Labs · Apr 29, 2026
- Claude Mythos Has Found 271 Zero-Days in FirefoxSchneier on Security · Apr 29, 2026
- What Anthropic’s Mythos Means for the Future of CybersecuritySchneier on Security · Apr 28, 2026
- After Mythos: New Playbooks For a Zero-Window EraThe Hacker News · Apr 28, 2026
- Cursor-Opus agent snuffs out startup’s production databaseThe Register Security · Apr 27, 2026
- Parsing Agentic Offensive Security's Existential ThreatDark Reading · Apr 27, 2026