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Critical 9.1Published Apr 13, 2026

CVE-2026-0234An improper verification of cryptographic signature vulnerability exists in Cortex XSOAR and Cortex XSIAM platforms during integration of Microsoft Teams that enables an unauthenticated user to acces…

Updated under an hour ago ()

Does this affect you?

It affects paloaltonetworks cortex_xsiam and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

An improper verification of cryptographic signature vulnerability exists in Cortex XSOAR and Cortex XSIAM platforms during integration of Microsoft Teams that enables an unauthenticated user to access and modify protected resources.

CVSS
9.1 CRITICAL (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Weakness (CWE)
CWE-347
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
Not given
NVD analysis
Undergoing Analysis
Record last updated
Jul 7, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
paloaltonetworks cortex_xsiam
paloaltonetworks:cortex_xsiam
from 1.5.0 before 1.5.52
NVD
paloaltonetworks cortex_xsoar
paloaltonetworks:cortex_xsoar
from 1.5.0 before 1.5.52
NVD

References

  • vendor-advisory

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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