CVE-2026-67426: flytohub flyto-core · Missing Authentication
Affects flytohub flyto-coreSource CVE Database V5
Not known to be exploited · CVSS 9.3 Critical : upgrade to 2.26.7 as a priority.
Data as of 27 Oct 2026, 17:11 UTC
- EPSS
- 0.3% chance of exploitation in 30 days – higher than 31% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 2.26.7
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:NExploitation evidence
Disclosed: evidence found.
CVE published 29 Jul 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Upgrade flyto-core and flytohub/flyto-core to 2.26.7.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| flytohubflyto-core | Affected
| Fixed in
|
GitHubflytohub/flyto-corepkg:github/flytohub/flyto-coreOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
A fix is available in flyto-core version 2.26.7. Users should upgrade to version 2.26.7 or later to remediate this vulnerability. No other official remediation or temporary fixes are indicated. Until patched, restricting network access to the vulnerable service may reduce exposure.
Description
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.