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CVE-2026-123036

Quick assessment

Affected
Red Hat ansible-core
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 ansible-core 中发现一个安全缺陷：当标记为 的任务执行失败时，虽然任务结果在输出前会被进行脱敏处理，但由于 字段被包含在 中的 PRESERVE 白名单内，默认的标准输出（stdout）回调仍会通过 将其打印出来。这导致操作员明确要求隐藏敏感信息时，这些内容仍可能被泄露：模块参数验证错误会回显参数值；模板渲染错误会输出 Origin 源码片段（包含出错行及其前两行变量文件内容，从而暴露 文件中相邻的秘密）；而 和 模块的错误消息则会被完整打印。因此，即使所有涉及秘密的任务均标记为 ，通过额外变量或变

CVSS 5.5 · Medium
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I. Basic Information for CVE-2026-123036

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw was found in ansible-core. When a task marked `no_log: true` fails, the task result is censored before being emitted, but the `exception` field is retained because it is present in the PRESERVE allow-list in lib/ansible/_internal/_task.py, and the default stdout callback prints it through CallbackBase._handle_exception. As a result, sensitive values the operator explicitly asked to hide can be disclosed: module argument-validation errors echo the argument value, templating errors print an Origin source snippet (the failing line plus the two preceding lines of the variables file, exposing neighbouring secrets from an -e @secrets.yml file), and fail/assert messages are printed in full. Secret material supplied as extra variables or variables files can therefore leak to terminal output, CI logs, and the stdout logs of any automation wrapping ansible-playbook, even though every task touching the secrets is marked no_log: true. This is a regression introduced with the ansible-core 2.19 data-tagging/templating rework; the behaviour does not occur on 2.16, where the error text is correctly censored.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过错误消息导致的信息暴露
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Red Hat ansible-core 2.19.0 ~ 2.23.0 -

II. Public POCs for CVE-2026-123036

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III. Intelligence Information for CVE-2026-123036

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Other References for CVE-2026-123036 (1)

IV. Related Vulnerabilities

Same vendor: Red Hat
Same weakness: CWE-209