CVE-2026-21227
CVE-2026-21227 is a high-severity vulnerability in Microsoft Azure Logic Apps with a CVSS 3.x base score of 8.2. 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 8.2)
- EPSS exploit prediction: 0% (39th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-4506
- Weakness: CWE-22
- Affected product: Microsoft Azure Logic Apps
- Published:
- Last modified:
Description
Improper limitation of a pathname to a restricted directory ('path traversal') in Azure Logic Apps allows an unauthorized attacker to elevate privileges over a network.
Frequently asked questions
- What is CVE-2026-21227?
- Improper limitation of a pathname to a restricted directory ('path traversal') in Azure Logic Apps allows an unauthorized attacker to elevate privileges over a network.
- How severe is CVE-2026-21227?
- CVE-2026-21227 has a CVSS 3.x base score of 8.2, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity low, and availability none.
- Is CVE-2026-21227 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (39th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-21227?
- CVE-2026-21227 affects Microsoft Azure Logic Apps. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-21227?
- 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-2026-21227 have an EU (EUVD) identifier?
- Yes. CVE-2026-21227 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-4506.
- When was CVE-2026-21227 published?
- CVE-2026-21227 was published on 2026-01-22 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:microsoft:azure_logic_apps:-:*:*:*:*:*:*:*
More vulnerabilities in Microsoft Azure Logic Apps
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- CVE-2023-36019 — Critical (CVSS 9.6): Microsoft Power Platform Connector Spoofing Vulnerability
- CVE-2026-32171 — High (CVSS 8.8): Insufficiently protected credentials in Azure Logic Apps allows an authorized attacker to elevate privileges over a…
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