How severe is CVE-2026-0270?

CVE-2026-0270 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over an adjacent network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-0270 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-0270?

CVE-2026-0270 affects Paloaltonetworks Cortex Xsoar. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-0270?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-0270 have an EU (EUVD) identifier?

Yes. CVE-2026-0270 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-36146.

When was CVE-2026-0270 published?

CVE-2026-0270 was published on 2026-06-10 and last updated on 2026-07-23.

CVE-2026-0270

CVE-2026-0270 is a high-severity vulnerability in Paloaltonetworks Cortex Xsoar with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-22.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v4: 4.8
EPSS exploit prediction: 0% (10th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-36146
Weakness: CWE-22
Affected product: Paloaltonetworks Cortex Xsoar
Published: 2026-06-10
Last modified: 2026-07-23

Description

A path traversal vulnerability in Palo Alto Networks Cortex XSOAR engine software running on Linux allows an unauthenticated attacker on an adjacent network, with the ability to intercept and manipulate network response traffic via a man-in-the-middle (MITM) attack, to write arbitrary files to the host.

Frequently asked questions

What is CVE-2026-0270?: A path traversal vulnerability in Palo Alto Networks Cortex XSOAR engine software running on Linux allows an unauthenticated attacker on an adjacent network, with the ability to intercept and manipulate network response traffic via a man-in-the-middle (MITM) attack, to write arbitrary files to the host.
How severe is CVE-2026-0270?: CVE-2026-0270 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over an adjacent network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-0270 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-0270?: CVE-2026-0270 affects Paloaltonetworks Cortex Xsoar. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-0270?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-0270 have an EU (EUVD) identifier?: Yes. CVE-2026-0270 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-36146.
When was CVE-2026-0270 published?: CVE-2026-0270 was published on 2026-06-10 and last updated on 2026-07-23.

References

Affected products (1)

cpe:2.3:a:paloaltonetworks:cortex_xsoar:*:*:*:*:*:*:*:*

More vulnerabilities in Paloaltonetworks Cortex Xsoar

CVE-2021-3044 — Critical (CVSS 9.8): An improper authorization vulnerability in Palo Alto Networks Cortex XSOAR enables a remote unauthenticated attacker…
CVE-2026-0234 — Critical (CVSS 9.1): An improper verification of cryptographic signature vulnerability exists in Cortex XSOAR and Cortex XSIAM platforms…
CVE-2021-3051 — High (CVSS 8.1): An improper verification of cryptographic signature vulnerability exists in Cortex XSOAR SAML authentication that…
CVE-2022-0020 — Medium (CVSS 6.8): A stored cross-site scripting (XSS) vulnerability in Palo Alto Network Cortex XSOAR web interface enables an…
CVE-2022-0031 — Medium (CVSS 6.7): A local privilege escalation (PE) vulnerability in the Palo Alto Networks Cortex XSOAR engine software running on a…
CVE-2023-0003 — Medium (CVSS 6.5): A file disclosure vulnerability in the Palo Alto Networks Cortex XSOAR server software enables an authenticated user…

All CVEs affecting Paloaltonetworks Cortex Xsoar →

Other CWE-22 (Path Traversal) vulnerabilities

CVE-2026-76606 — Critical (CVSS 10.0): Joomla Extension - fabrikar.com - Path Traversal via image element in Fabrik < 4.7.3 - ???.
CVE-2026-18051 — Critical (CVSS 10.0): The W3 Total Cache WordPress plugin before 2.10.5 does not properly validate the request path it uses to build cache…
CVE-2026-74764 — Critical (CVSS 10.0): Pandora contains a path traversal vulnerability in its TAR archive extraction functionality. When processing a…
CVE-2026-16940 — Critical (CVSS 10.0): The Custom Fields WordPress plugin before 1.5.1 does not validate a user-supplied file path before deletion, allowing…
CVE-2026-67429 — Critical (CVSS 10.0): Flyto2 Core is an execution kernel for automation and AI-agent workflows. Prior to 2.26.6, image.download and related…
CVE-2026-59555 — Critical (CVSS 10.0): Unauthenticated Arbitrary File Deletion in Participants Database <= 2.7.8.3 versions.

Browse all CWE-22 (Path Traversal) vulnerabilities →