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CVE-2026-77564— Talos Linux: Support bundle does not redact registry credentials

Quick assessment

Affected
siderolabs talos
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.

Talos Linux 是一个专为 Kubernetes 部署而设计的 Linux 发行版。在 1.12.9 和 1.13.3 版本之前，talosctl 工具在生成支持包（support bundles）时，会包含来自 的 字段以及来自 的敏感内容，而未对这些资源进行标记或脱敏处理。因此，如果操作员将支持包分享给未预期的接收方，可能会导致私有仓库的认证参数泄露，其影响程度取决于仓库的网络暴露范围以及凭据的权限级别。从 Talos 1.14 开始，支持包默认采用加密方式生成，这降低了风险，但并不能完全替代对敏感数据

CVSS 3.3 · Low EPSS 0.13% · P2

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage

Affected Version Matrix 2

VendorProduct Version RangeStatus
siderolabs talos < 1.12.9 affected
>= 1.13.0, < 1.13.3 affected
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I. Basic Information for CVE-2026-77564

Vulnerability Information
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Vulnerability Title
Talos Linux: Support bundle does not redact registry credentials
Source: CVE Program / CVE List V5
Vulnerability Description
Talos Linux is a Linux distribution built for Kubernetes deployments. Prior to 1.12.9 and 1.13.3, talosctl support includes the auth field from resources/registryconfigs.cri.talos.dev.yaml and sensitive content from etcfilespecs.files.talos.dev.yaml in generated support bundles instead of marking or redacting those resources. An operator who shares a bundle with an unintended party can therefore disclose private registry authentication parameters, with impact depending on the registry's network exposure and credential privileges. Talos 1.14 and later encrypt support bundles by default, which reduces but does not replace the need for redaction. This issue is fixed in versions 1.12.9 and 1.13.3.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
敏感数据的明文存储
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
siderolabs talos < 1.12.9 -

II. Public POCs for CVE-2026-77564

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III. Intelligence Information for CVE-2026-77564

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Patches & Fixes for CVE-2026-77564 (3)

Other References for CVE-2026-77564 (1)

IV. Related Vulnerabilities

Same product: talos
Same vendor: siderolabs
Same weakness: CWE-312

V. Comments for CVE-2026-77564

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