CVE-2026-21852 - Vulnerability Details

Threat entity extracted from intelligence sources

Frequency
7
occurrences
First Seen
February 25, 2026
Last Seen
May 26, 2026

CVE-2026-21852 is a vulnerability tracked across 4 threat clusters and 7 intelligence report mentions on ThreatCluster. First observed February 25, 2026; most recent activity May 26, 2026.

Related Threat Clusters

Recent Intelligence Reports

  • How Agentic AI Coding Assistants Become the Attacker's Shell — Arxiv · May 26, 2026
  • Common Agentic Attack Patterns: 6 Layers Explained — Augmentcode · May 18, 2026
  • CVE-2026-21852 — nvd.nist.gov · April 30, 2026
  • Researchers Find Critical Vulnerabilities in Claude Code Tool Allowed Remote Attacks — Technobezz · February 26, 2026
  • Claude Code Flaws Allowed RCE and API Token Theft — Technadu · February 26, 2026
  • Critical Claude Code Vulnerabilities Enables Remote Code Execution Attacks — Cybersecuritynews · February 26, 2026
  • Check Point Researchers Expose Critical Claude Code Flaws — Blog.Checkpoint · February 25, 2026

CVSS v3.1 Breakdown