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CVE-2021-3044· NVD / CVE Program· CNA palo_alto

Cortex XSOAR: Unauthorized Usage of the REST API

An improper authorization vulnerability in Palo Alto Networks Cortex XSOAR enables a remote unauthenticated attacker with network access to the Cortex XSOAR server to perform unauthorized actions through the REST API. This issue impacts: Cortex XSOAR 6.1.0 builds later than 1016923 and earlier than 1271064; Cortex XSOAR 6.2.0 builds earlier than 1271065. This issue does not impact Cortex XSOAR 5.5.0, Cortex XSOAR 6.0.0, Cortex XSOAR 6.0.1, or Cortex XSOAR 6.0.2 versions. All Cortex XSOAR instances hosted by Palo Alto Networks are upgraded to resolve this vulnerability. No additional action is required for these instances.

CriticalCVSS 9.8 · v3.1—No exploit Fix available

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Published
Jun 22, 2021
Updated
Jun 17, 2026
EPSS
1.4% · 72th percentile
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Report tools

JSON

Action score

39

Monitor

Low priority for now.

CVSS
39 / 40 · 9.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 1.4%

CNA vs NVD score

NVD
—
CNA · palo_alto
9.8
NVD has not scored this yet; the score shown is the CNA’s.

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Affected systems

VendorProduct
paloaltonetworkscortex xsoar

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • paloaltonetworks cortex xsoar6.1.0
  • paloaltonetworks cortex xsoar6.2.0

Versions reported by the vendor

Affected version ranges reported by the assigning authority (palo_alto). Independent of NVD's CPE analysis and usually ahead of it.

  • Palo Alto Networks Cortex XSOAR

    • 5.5.0 all, 6.0.0 all, 6.0.1 all, 6.0.2 allnot affected
    • 1016923 and later · before 6.1.0*affectedfixed in 1271064
    • 6.2.0 and later · before 1271065affectedfixed in 1271065

Same product

paloaltonetworks: all records

Other highest-scoring records for the same primary product.

  • CVE-2021-3051Cortex XSOAR: Authentication Bypass in SAML Authentication
    32Monitor
  • CVE-2023-0003Cortex XSOAR: Local File Disclosure Vulnerability in the Cortex XSOAR Server
    26Monitor
  • CVE-2022-0020Cortex XSOAR: Stored Cross-Site Scripting (XSS) Vulnerability in Web Interface
    22Monitor
  • CVE-2021-3034Cortex XSOAR: Secrets for SAML single sign-on (SSO) integration may be logged in system logs
    20Monitor
  • CVE-2022-0027Cortex XSOAR: Incorrect Authorization Vulnerability When Generating Reports
    17Monitor
  • CVE-2021-3049Cortex XSOAR: Improper Authorization of Incident Investigations Vulnerability
    17Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Palo Alto Networks Cortex XSOAR1271064Vendor (CNA)
Palo Alto Networks Cortex XSOAR1271065Vendor (CNA)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-285 · Improper Authorization

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

nvd-secondary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records