CVE-2026-41134: Kiota is an OpenAPI based HTTP Client code generator

Q: How do I fix CVE-2026-41134?

kiota: upgrade to 1.31.1. Exact commands for each OS are on this page.

Q: Is CVE-2026-41134 being exploited?

CVE-2026-41134 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-41134 affect?

CVE-2026-41134 affects kiota. Severity is high (CVSS 7.8). Kiota is an OpenAPI based HTTP Client code generator. Versions prior to 1.29.1 and 1.31.1 are affected by a code-generation literal injection vulnerability in multiple writer sinks (for example: serialization/deserialization keys, path/quer

Q: How urgent is CVE-2026-41134?

Priority 46/100. High severity; Public exploit reference; On your watchlist

This month

HIGH 7.8WATCHLISTUPGRADE

CVE-2026-41134 is a high-severity flaw (CVSS 7.8) affecting kiota. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Kiota is an OpenAPI based HTTP Client code generator. Versions prior to 1.29.1 and 1.31.1 are affected by a code-generation literal injection vulnerability in multiple writer sinks (for example: serialization/deserialization keys, path/query parameter mappings, URL template metadata, enum/property metadata, and default value emission). When malicious values from an OpenAPI description are emitted into generated source without context-appropriate

Why this priority

High severity
Public exploit reference
On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	7.8 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.4% (top 64%)
CISA exploited list	No
Weakness	CWE-94
Published	2026-04-22
Last modified	2026-10-26

Publisher (CNA): GitHub, Inc. · Vendor: microsoft

Last updated 2026-10-26 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-04-22 21:17 UTCPublished CVE record published
2026-10-26 22:10 UTCUpdated Record last modified

microsoft kiota UPGRADE

Affected: < 1.31.1

Fixed in: 1.31.1

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy kiota || rpm -q kiota || kiota --version

2. UPGRADE to 1.31.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade kiota

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade kiota

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-41134?

kiota: upgrade to 1.31.1. Exact commands for each OS are on this page.

Is CVE-2026-41134 being exploited?

CVE-2026-41134 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-41134 affect?

CVE-2026-41134 affects kiota. Severity is high (CVSS 7.8). Kiota is an OpenAPI based HTTP Client code generator. Versions prior to 1.29.1 and 1.31.1 are affected by a code-generation literal injection vulnerability in multiple writer sinks (for example: serialization/deserialization keys, path/quer

How urgent is CVE-2026-41134?

Priority 46/100. High severity; Public exploit reference; On your watchlist

References

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