CVE-2026-0234Disclosure(paloaltonetworks / cortex_xsiam)

🛡️ Palo Alto Cortex Microsoft Teams Integration Vulnerability Enables Data Access for Attackers Source: https://cybersecuritynews.com/palo-alto-cortex-microsoft-teams-integration/ Palo Alto Networks released an urgent update to patch a high-severity flaw (CVE-2026-0234) affecting the Microsoft Teams integration in Cortex XSOAR and Cortex XSIAM. This flaw could allow unauthorized attackers to access and modify sensitive data, prompting Palo Alto Networks to issue a “Highest” urgency alert to its users. Because the Microsoft Teams integration fails to inspect these digital passports properly, an attacker can effectively forge a fake signature to trick the system. By spoofing this signature, an attacker can bypass security checkpoints entirely. They do not need a valid username or password or any prior network privileges. #cybersecuritynews

Palo Alto Cortex の脆弱性 CVE-2026-0234 が FIX：Teams との連携不備による不正アクセス https://iototsecnews.jp/2026/04/09/palo-alto-cortex-xsoar-flaw-in-microsoft-teams-integration-lets-attackers-access-data/ Palo Alto Networks の Cortex XSOAR／XSIAM が、Microsoft Teams と連携する際の不適切な暗号署名の検証 (CWE-347) という脆弱性が発生しています。その通信が本物であることを証明する検証プロセスの不備を突く攻撃者は、身元を偽装してシステムをだますことが可能になっています。この脆弱性 CVE-2026-0234 が悪用されると、攻撃者はユーザー名やパスワードなしでシステムへ侵入し、インシデント対応の自動化設定の改竄や、機密データへの不正アクセスを可能にします。ご利用のチームは、ご注意ください。 #Cortex #CVE20260234 #PaloAlto #Vulnerability

BREAKING: Palo Alto Networks patches critical CVE-2026-0234 in Cortex XSOAR and XSIAM Microsoft Teams integration, fixing flaw that let unauthenticated attackers access and modify sensitive data. https://threatcluster.io/cluster/palo-alto-cortex-xsoar-vulnerability-in-microsoft-teams-inte-31b1c5ce

⚠️ High severity bug (CVE-2026-0234) in Cortex XSOAR/XSIAM Teams integration could let attackers access & modify data without auth. No active exploits yet, but patch ASAP to 1.5.52+. No workaround available. Source: https://security.paloaltonetworks.com/CVE-2026-0234 #CyberSecurity

⚠️ Vulnerabilidad en productos Palo Alto ❗ CVE-2026-0234 ➡️ Más info: https://www.cert.gov.py/vulnerabilidad-en-productos-palo-alto/ https://t.co/Vocmg9p7wM

Cortex XSOAR: Improper Verification of Cryptographic Signature in Microsoft Teams integration (CVE-2026-0234) #CortexXSIAM #CortexXSOAR #CVE20260234 #CyberSecurity https://www.systemtek.co.uk/?p=50812 https://t.co/Jp0kIc9L4k

CVE-2026-0234: Improper Cryptographic Signature Verification - What It Means for Your Business and How to Respond https://hubs.li/Q04cF1Bm0

CVE-2026-0234 An improper verification of cryptographic signature vulnerability exists in Cortex XSOAR and Cortex XSIAM platforms during integration of Microsoft Teams that enables a… https://www.cve.org/CVERecord?id=CVE-2026-0234

CVE-2026-0234 Improper Cryptographic Signature Verification in Palo Alto Cortex XSOAR a... https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-0234 Vulnerability Notification: https://alerts.vulmon.com/?utm_source=twitter&utm_medium=social&utm_campaign=2102281&utm_content=3

🚨 Palo Alto Cortex Teams Integration Flaw: Forged #Digital Passports Let Attackers Hijack Sensitive Data (#CVE-2026-0234) + Video https://undercodetesting.com/palo-alto-cortex-teams-integration-flaw-forged-digital-passports-let-attackers-hijack-sensitive-data-cve-2026-0234-video/ Educational Purposes!

Paloaltoの脆弱性情報 「CVE-2026-0234 Cortex XSOAR: Improper Verification of Cryptographic Signature in Microsoft Teams integration (Severity: HIGH)」が公開されました。 → https://security.paloaltonetworks.com/CVE-2026-0234