What is CVE-2026-41134?

CVE-2026-41134 is a high-severity vulnerability in Microsoft Kiota, classified under Code Injection. CVSS score: 7.8/10. Published 2026-04-22.

How severe is CVE-2026-41134?

High severity. CVSS v3 base score is 7.8 out of 10.

RCE in Microsoft Kiota

CVE-2026-41134

Kiota is an OpenAPI based HTTP Client code generator. Versions prior to 1.31.1 are affected by a code-generation literal injection vulnerability in multiple writer sinks (for example: serialization/deserialization keys, path/query paramete…

Vulnerability class: RCE (Remote Code Execution)

EPSS: 0.000 (7.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Microsoft Kiota — versions < 1.31.1

Weakness classification (CWE)

CWE-94 — Code Injection

References

security-advisories@github.com (x_refsource_CONFIRM, Exploit, Vendor Advisory)

Frequently asked questions

What is CVE-2026-41134?: CVE-2026-41134 is a high-severity vulnerability in Microsoft Kiota, classified under Code Injection. CVSS score: 7.8/10. Published 2026-04-22.
How severe is CVE-2026-41134?: High severity. CVSS v3 base score is 7.8 out of 10.