CVE-2026-67426

Flyto2 Core is an execution kernel for automation and AI-agent workflows. Prior to 2.26.7, the standalone flyto-verification service in src/core/verification_service.py exposes unauthenticated POST /run on 0.0.0.0:8344 and uses client-supplied callback_url for an outbound POST with X-Internal-Key: $FLYTO_RUNNER_SECRET while bypassing target_allowed, allowing unauthenticated SSRF and runner secret exfiltration. This issue is fixed in version 2.26.7.

CVSS v3 9.3 CRITICAL

9.3^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 4.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://github.com/flytohub/flyto-core/commit/0a0a528520ec18f5a21f1ddf858a71cc1edfb6e9
https://github.com/flytohub/flyto-core/releases/tag/v2.26.7
https://github.com/flytohub/flyto-core/security/advisories/GHSA-jx74-cqjv-2c67
https://github.com/flytohub/flyto-core/security/advisories/GHSA-jx74-cqjv-2c67

Configurations

No configuration.

History

29 Jul 2026, 20:17

Type	Values Removed	Values Added
References	~~() https://github.com/flytohub/flyto-core/security/advisories/GHSA-jx74-cqjv-2c67 -~~	() https://github.com/flytohub/flyto-core/security/advisories/GHSA-jx74-cqjv-2c67 -

29 Jul 2026, 19:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-07-29 19:16

Updated : 2026-07-30 16:41

NVD link : CVE-2026-67426

Mitre link : CVE-2026-67426

CVE.ORG link : CVE-2026-67426

JSON object : View

Products Affected

No product.

CWE

CWE-306

Missing Authentication for Critical Function

CWE-522

Insufficiently Protected Credentials

CWE-918

Server-Side Request Forgery (SSRF)

{"id": "CVE-2026-67426", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-67426", "role": "CISA Coordinator", "options": [{"exploitation": "poc"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-07-29T19:04:58.621879Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 9.3, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 4.7, "exploitabilityScore": 3.9}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "flytohub", "product": "flyto-core", "versions": [{"status": "affected", "version": "< 2.26.7"}]}]}], "published": "2026-07-29T19:16:51.770", "references": [{"url": "https://github.com/flytohub/flyto-core/commit/0a0a528520ec18f5a21f1ddf858a71cc1edfb6e9", "source": "security-advisories@github.com"}, {"url": "https://github.com/flytohub/flyto-core/releases/tag/v2.26.7", "source": "security-advisories@github.com"}, {"url": "https://github.com/flytohub/flyto-core/security/advisories/GHSA-jx74-cqjv-2c67", "source": "security-advisories@github.com"}, {"url": "https://github.com/flytohub/flyto-core/security/advisories/GHSA-jx74-cqjv-2c67", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-306"}, {"lang": "en", "value": "CWE-522"}, {"lang": "en", "value": "CWE-918"}]}], "descriptions": [{"lang": "en", "value": "Flyto2 Core is an execution kernel for automation and AI-agent workflows. Prior to 2.26.7, the standalone flyto-verification service in src/core/verification_service.py exposes unauthenticated POST /run on 0.0.0.0:8344 and uses client-supplied callback_url for an outbound POST with X-Internal-Key: $FLYTO_RUNNER_SECRET while bypassing target_allowed, allowing unauthenticated SSRF and runner secret exfiltration. This issue is fixed in version 2.26.7."}], "lastModified": "2026-07-30T16:41:25.650", "sourceIdentifier": "security-advisories@github.com"}