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CVE-2026-63406— AnyCable: Telemetry Subsystem Contains Hardcoded Authentication Token and Transmits CLI Arguments Including Secrets

Quick assessment

Affected
anycable anycable
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.

AnyCable is a realtime server for reliable two-way communication that supports any backend. Prior to 1.6.15, the telemetry subsystem in telemetry/config.go enables tracking with a hardcoded public authToken, while clusterFingerprint in telemetry/telemetry.go r

CVSS 5.9 · Medium

Affected Version Matrix 1

VendorProduct Version RangeStatus
anycable anycable < 1.6.15 affected
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I. Basic Information for CVE-2026-63406

Vulnerability Information

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Vulnerability Title
AnyCable: Telemetry Subsystem Contains Hardcoded Authentication Token and Transmits CLI Arguments Including Secrets
Source: CVE Program / CVE List V5
Vulnerability Description
AnyCable is a realtime server for reliable two-way communication that supports any backend. Prior to 1.6.15, the telemetry subsystem in telemetry/config.go enables tracking with a hardcoded public authToken, while clusterFingerprint in telemetry/telemetry.go reads the full configuration file and raw os.Args returned by anycableCLIArgs, including values supplied through --secret, --jwt_secret, and --http_rpc_secret. These inputs are passed to generateDigest, where sha256.New produces the hexadecimal fingerprint that is sent as telemetry. The available source therefore does not show raw credentials leaving the process or establish the advisory's claimed confidentiality loss, although the stable fingerprint is derived from secret-bearing configuration and the default telemetry client uses publicly known authentication material. This issue is fixed in version 1.6.15.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/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
anycable anycable < 1.6.15 -

II. Public POCs for CVE-2026-63406

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III. Intelligence Information for CVE-2026-63406

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Patches & Fixes for CVE-2026-63406 (1)

Other References for CVE-2026-63406 (2)

IV. Related Vulnerabilities

Same product: anycable
Same vendor: anycable
Same weakness: CWE-312

V. Comments for CVE-2026-63406

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