CVE-2026-67427Public exploitNetwork attack vector

Host secret disclosure via unchecked environment interpolation

Published Jul 29, 2026 · Updated Jul 29, 2026

Protection mechanism failure in Flyto2 Core before 2.26.6 allows remote attackers to read host environment secrets through workflows. The variable resolver calls os.getenv for every ${env.VAR} token before module-policy enforcement, without checking the env.get denylist or an allowlist. An untrusted workflow can place the returned value into an allowed outbound module, exposing API keys, tokens, or DSNs held in the process environment.

CVSS severity8.6
High
EPSS probability0.36%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Protection mechanism failure in Flyto2 Core before 2.26.6 allows remote attackers to read host environment secrets through workflows. The variable resolver calls os.getenv for every ${env.VAR} token before module-policy enforcement, without checking the env.get denylist or an allowlist. An untrusted workflow can place the returned value into an allowed outbound module, exposing API keys, tokens, or DSNs held in the process environment.

The record

CVE
CVE-2026-67427
Published
Jul 29, 2026
Updated
Jul 29, 2026
Vendor
Flyto2
Product
Flyto2 Core
Classifications
CWE-668, CWE-522, CWE-693, T1005
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 29, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 29, 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=< 2.26.6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Flyto2 · Flyto2 Coreversion=< 2.26.6

Published CVSS scores

8.6GitHubCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/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.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-668Exposure of Resource to Wrong Sphere
CWE-522Insufficiently Protected Credentials
CWE-693Protection Mechanism Failure
T1005Data from Local System

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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