CVE-2026-21852
highPriorität · beachten · 50EPSS 0.275 · 98. PerzentilExploit · PoCEUUSEPSS · bewertet 2026-10-27
Claude Code is an agentic coding tool. Prior to version 2.0.65, vulnerability in Claude Code's project-load flow allowed malicious repositories to exfiltrate data including Anthropic API keys before users confirmed trust. An attacker-controlled repository could include a settings file that sets ANTHROPIC_BASE_URL to an attacker-controlled endpoint and when the repository was opened, Claude Code would read the configuration and immediately issue API requests before showing the trust prompt, potentially leaking the user's API keys. Users on standard Claude Code auto-update have received this fix already. Users performing manual updates are advised to update to version 2.0.65, which contains a patch, or to the latest version.
cvss
Technischer Schweregrad, 0–10. Eine Zeile je Quelle.
Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen⚠ Quellen uneinig · low–high · 2.1–7.5
SSVC
Eine Handlungsentscheidung — aus Ausnutzung und Auswirkung.
schwächen
Die CWE-Schwächeklassen, zu denen dies gehört.
Exploits (4)
Öffentlicher Proof-of-Concept- und Exploit-Code.
- atiilla/CVE-2026-21852-PoCatiilla/CVE-2026-21852-PoCPoC · poc_in_github
betroffene Produkte (3)
Betroffene Produkte und Versionsbereiche.
Advisories (1)
Hersteller- und Ökosystem-Meldungen dazu.
- GHSA-jh7p-qr78-84p7Claude Code Leaks Data via Malicious Environment Configuration Before Trust Confirmation2026-01-21ghsa · osvUS
A vulnerability in Claude Code's project-load flow allowed malicious repositories to exfiltrate data including Anthropic API keys before users confirmed trust. If a user started Claude Code in an attacker-controller repository, and the repository included a settings file that set ANTHROPIC_BASE_URL to an attacker-controlled endpoint, Claude Code would issue API requests before showing the trust prompt, including potentially leaking the user's API keys. Users on standard Claude Code auto-update have received this fix already. Users performing manual updates are advised to update to the latest version.
auch bekannt als (3)
Weitere Namen und Kennungen dieser Entität.
quellen
Welche Quellen diesen Datensatz belegen und wann.
Referenzen (5)
Externe Belege — Patches, Meldungen, Analysen.
- https://access.redhat.com/security/cve/cve-2026-21852cnnvd
- https://github.com/anthropics/claude-code/releasesPatchcnnvd
- https://github.com/anthropics/claude-code/security/advisories/GHSA-jh7p-qr78-84p7cnnvd
- https://github.com/anthropics/claude-code/security/advisories/GHSA-jh7p-qr78-84p7enisa_euvd
- https://github.com/anthropics/claude-code/security/advisories/GHSA-jh7p-qr78-84p7Vendor Advisorynvd
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