CVE-2026-26055: Yoke is a Helm-inspired infrastructure-as-code (IaC) package deployer

Q: How do I fix CVE-2026-26055?

yoke: upgrade to newer than 0.19.0. Exact commands for each OS are on this page.

Q: Is CVE-2026-26055 being exploited?

CVE-2026-26055 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-2026-26055 affect?

CVE-2026-26055 affects yoke. Severity is high (CVSS 7.5). Yoke is a Helm-inspired infrastructure-as-code (IaC) package deployer. In 0.19.0 and earlier, a vulnerability exists in the Air Traffic Controller (ATC) component of Yoke. The ATC webhook endpoints lack proper authentication mechanisms, all

Q: How urgent is CVE-2026-26055?

Priority 46/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

This week

HIGH 7.5REMOTEUPGRADE

CVE-2026-26055 is a high-severity flaw (CVSS 7.5) affecting yoke. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Yoke is a Helm-inspired infrastructure-as-code (IaC) package deployer. In 0.19.0 and earlier, a vulnerability exists in the Air Traffic Controller (ATC) component of Yoke. The ATC webhook endpoints lack proper authentication mechanisms, allowing any pod within the cluster network to directly send AdmissionReview requests to the webhook, bypassing Kubernetes API Server authentication. This enables attackers to trigger WASM module execution in the

Why this priority

High severity
Public exploit reference
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.5% (top 60%)
CISA exploited list	No
Weakness	CWE-306
Published	2026-02-12
Last modified	2026-06-17

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

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-02-12 22:16 UTCPublished CVE record published
2026-06-17 10:25 UTCUpdated Record last modified

yokecd yoke UPGRADE

Affected: <= 0.19.0

Fixed in: newer than 0.19.0

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 0.19.0 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade yoke

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-2026-26055?

yoke: upgrade to newer than 0.19.0. Exact commands for each OS are on this page.

Is CVE-2026-26055 being exploited?

CVE-2026-26055 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-2026-26055 affect?

CVE-2026-26055 affects yoke. Severity is high (CVSS 7.5). Yoke is a Helm-inspired infrastructure-as-code (IaC) package deployer. In 0.19.0 and earlier, a vulnerability exists in the Air Traffic Controller (ATC) component of Yoke. The ATC webhook endpoints lack proper authentication mechanisms, all

How urgent is CVE-2026-26055?

Priority 46/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

Kubernetes vulnerabilities · Helm vulnerabilities

Related CVEs

CVE-2026-26056 HIGH 8.8 UPGRADE Yoke is a Helm-inspired infrastructure-as-code (IaC) package deployer

References

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