Vulnerability details

CVE-2026-67425

flytohub flyto-core

Flyto2 Core: LLM/API keys leak to an attacker-controlled base_url

CVSS 3.1

8.6High

Official description

Flyto2 Core is an execution kernel for automation and AI-agent workflows. Prior to 2.26.6, llm.chat reads provider keys such as OPENAI_API_KEY and ANTHROPIC_API_KEY from the environment and sends them in the Authorization: Bearer header to caller-controlled base_url, allowing an attacker to receive the operator's key on a public host that passes the SSRF guard. This issue is fixed in version 2.26.6.

CVSS scores

Score	Version	Source	Vector
8.6High	3.1	CVEProject cvelistV5 (CNA) (GitHub_M)	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N`

Affected products

Vendor	Product	Versions	Source
flytohub	flyto-core	< 2.26.6	CVEProject cvelistV5 (CNA)

References and advisories

https://github.com/flytohub/flyto-core/commit/d5f89d71303e3c1e6418d347c5c55fcd173cc8cc x_refsource_MISC
https://github.com/flytohub/flyto-core/releases/tag/v2.26.6 x_refsource_MISC
https://github.com/flytohub/flyto-core/security/advisories/GHSA-qq9q-xgm3-xv9g x_refsource_CONFIRM

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Details

Published: 2026-07-29
Last updated: 2026-07-29
State: Published
Assigner (CNA): GitHub_M

Exploit prediction (EPSS)

0.4%

Probability of exploitation in 30 days

35.1%

Percentile (among all CVEs)

SSVC assessment (CISA)

Automatable: Yes
Exploitation: Proof of concept
Technical impact: Partial

Weaknesses (CWE)

CWE-201
Insertion of Sensitive Information Into Sent Data
CWE-522
Insufficiently Protected Credentials