What’s Vulnerable › Vulnerabilities

CVE-2026-67425: Flyto2 Core: LLM/API keys leak to an attacker-controlled base_url

• Severity: high (CVSS 8.6 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-29 · updated 2026-10-24
• Weakness: CWE-201

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.

Affected products

• flytohub flyto-core: before 2.26.6

References

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

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