CVE-2026-77564Public exploit

Credential disclosure via unredacted support bundles

Published Oct 14, 2026 · Updated Oct 14, 2026

Credential disclosure in Sidero Labs Talos Linux support bundles allows attackers to read registry secrets via shared archives. The talosctl support command retains the auth field in resources/registryconfigs.cri.talos.dev.yaml and sensitive content in etcfilespecs.files.talos.dev.yaml without redaction. Exposure requires configured registry credentials and an operator sharing the bundle with an unintended recipient; subsequent registry access depends on network reachability and credential privileges.

CVSS severity3.3
Low
EPSS probability0.13%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Credential disclosure in Sidero Labs Talos Linux support bundles allows attackers to read registry secrets via shared archives. The talosctl support command retains the auth field in resources/registryconfigs.cri.talos.dev.yaml and sensitive content in etcfilespecs.files.talos.dev.yaml without redaction. Exposure requires configured registry credentials and an operator sharing the bundle with an unintended recipient; subsequent registry access depends on network reachability and credential privileges.

The record

CVE
CVE-2026-77564
Published
Oct 14, 2026
Updated
Oct 14, 2026
Vendor
Sidero Labs
Product
Talos Linux
Classifications
T1552.001
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 14, 2026CVE publishedPublication date reported by the CVE source.
  2. Oct 14, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 1.12.9
  2. Affected versionversion=>= 1.13.0, < 1.13.3

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Sidero Labs · Talos Linuxversion=< 1.12.9; version=>= 1.13.0, < 1.13.3

Published CVSS scores

3.3Sidero LabsCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

T1552.001Credentials In Files

Public exploit references

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Technologies

Your stack

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Your stack

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