CVE-2026-55559

Yamcs is a mission control framework. Prior to 5.12.8 and 5.13.2, Yamcs inserts templateArgs from POST /api/instances and PATCH /api/instances/instance into YAML through VarStatement.append in yamcs-core/src/main/java/org/yamcs/templating/VarStatement.java without YAML-context escaping. The...

GHSA-73MF-M39P-WPM9 Yamcs vulnerable to Remote Code Execution via instance-template argument YAML injection (createInstance)

Summary templateArgs sent to POST /api/instances and PATCH /api/instances/instance are written into the rendered instance config as raw text, then parsed as YAML and loaded. Yamcs instantiates each services: entry by its class:, so injecting YAML through a template arg lets you add a services:...

Yamcs vulnerable to Remote Code Execution via instance-template argument YAML injection (createInstance)

Summary templateArgs sent to POST /api/instances and PATCH /api/instances/instance are written into the rendered instance config as raw text, then parsed as YAML and loaded. Yamcs instantiates each services: entry by its class:, so injecting YAML through a template arg lets you add a services:...

CVE-2026-55559 Yamcs: Remote Code Execution via instance-template argument YAML injection (createInstance)

Yamcs is a mission control framework. Prior to 5.12.8 and 5.13.2, Yamcs inserts templateArgs from POST /api/instances and PATCH /api/instances/instance into YAML through VarStatement.append in yamcs-core/src/main/java/org/yamcs/templating/VarStatement.java without YAML-context escaping. The...

CVE-2026-55559 Yamcs: Remote Code Execution via instance-template argument YAML injection (createInstance)

Yamcs is a mission control framework. Prior to 5.12.8 and 5.13.2, Yamcs inserts templateArgs from POST /api/instances and PATCH /api/instances/instance into YAML through VarStatement.append in yamcs-core/src/main/java/org/yamcs/templating/VarStatement.java without YAML-context escaping. The...

EUVD-2026-67843

Yamcs is a mission control framework. Prior to 5.12.8 and 5.13.2, Yamcs inserts templateArgs from POST /api/instances and PATCH /api/instances/instance into YAML through VarStatement.append in yamcs-core/src/main/java/org/yamcs/templating/VarStatement.java without YAML-context escaping. The...

CVE-2026-55559

CVE-2026-55559 is a Critical (CVSS 9.8) remote code execution vulnerability in Yamcs (mission control framework) prior to versions 5.12.8 and 5.13.2 . The root cause is that templateArgs submitted via POST /api/instances or PATCH /api/instances/{instance} are appended into the rendered YAML confi...

CVE-2026-18874

A flaw was found in volsync-addon-controller. This vulnerability allows an attacker to inject malicious YAML Yet Another Markup Language code into the OpenShift Lifecycle Manager OLM Subscription resource. This is due to improper escaping of annotation values when they are rendered into YAML...

EUVD-2026-62669

A flaw was found in volsync-addon-controller. This vulnerability allows an attacker to inject malicious YAML Yet Another Markup Language code into the OpenShift Lifecycle Manager OLM Subscription resource. This is due to improper escaping of annotation values when they are rendered into YAML...

CVE-2026-18874 Volsync-addon-controller: volsync-addon-controller: annotation values rendered into yaml via text/template without escaping allows yaml injection into subscription

A flaw was found in volsync-addon-controller. This vulnerability allows an attacker to inject malicious YAML Yet Another Markup Language code into the OpenShift Lifecycle Manager OLM Subscription resource. This is due to improper escaping of annotation values when they are rendered into YAML...

CVE-2026-18874

In volsync-addon-controller, annotation values are rendered into YAML via Go's text/template without escaping, enabling YAML injection into the OLM Subscription resource. Exploitation requires high privileges and affects only clusters with the volsync-addon-deploy-type: olm annotation enabled. Re...

CVE-2026-18874 Volsync-addon-controller: volsync-addon-controller: annotation values rendered into yaml via text/template without escaping allows yaml injection into subscription

A flaw was found in volsync-addon-controller. This vulnerability allows an attacker to inject malicious YAML Yet Another Markup Language code into the OpenShift Lifecycle Manager OLM Subscription resource. This is due to improper escaping of annotation values when they are rendered into YAML...

CVE-2026-18874

A flaw was found in volsync-addon-controller. This vulnerability allows an attacker to inject malicious YAML Yet Another Markup Language code into the OpenShift Lifecycle Manager OLM Subscription resource. This is due to improper escaping of annotation values when they are rendered into YAML...

PT-2026-78558

Name of the Vulnerable Software and Affected Versions volsync-addon-controller affected versions not specified Description A flaw exists that allows the injection of malicious YAML Yet Another Markup Language code into the OpenShift Lifecycle Manager OLM Subscription resource. This occurs because...

CVE-2026-65636

The CVE-2026-65636 issue affects the ymlr library (Elixir.Ymlr) and its document encoding entry points (Ymlr.document!/2, Ymlr.documents!/2, Ymlr.documents/2). An attacker-controlled comment string is interpolated behind a single #, and CRLF sequences terminate the YAML comment, allowing injectio...

EEF-CVE-2026-65636 YAML injection via unescaped newlines in ymlr document comments

Summary Improper Neutralization of CRLF Sequences vulnerability in ufirstgroup ymlr Elixir.Ymlr module allows attackers to inject arbitrary content into generated YAML documents through document comments. Ymlr.document!/2 interpolates each caller-supplied comment string into the output behind a...

CVE-2026-65636 YAML injection via unescaped newlines in ymlr document comments

Improper Neutralization of CRLF Sequences vulnerability in ufirstgroup ymlr Elixir.Ymlr module allows attackers to inject arbitrary content into generated YAML documents through document comments. Ymlr.document!/2 interpolates each caller-supplied comment string into the output behind a single...

CVE-2026-65636 YAML injection via unescaped newlines in ymlr document comments

Improper Neutralization of CRLF Sequences vulnerability in ufirstgroup ymlr Elixir.Ymlr module allows attackers to inject arbitrary content into generated YAML documents through document comments. Ymlr.document!/2 interpolates each caller-supplied comment string into the output behind a single...

CVE-2026-65636 YAML injection via unescaped newlines in ymlr document comments

Improper Neutralization of CRLF Sequences vulnerability in ufirstgroup ymlr Elixir.Ymlr module allows attackers to inject arbitrary content into generated YAML documents through document comments. Ymlr.document!/2 interpolates each caller-supplied comment string into the output behind a single...

CVE-2026-47722

Nebula-mesh (self-hosted control plane for Slack Nebula) prior to v0.3.2 is affected by YAML injection in host advanced overrides. The root cause is that ListenHost and TunDevice are interpolated directly into a text/template used to generate the agent config.yml, and the web/advanced input has o...