Authentication bypass in Komodo Periphery agent
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
Komodo through 2.3.3 contains an authentication bypass in its Periphery agent. Empty core_public_keys and passkeys lists fail open by default, an insecure default (CWE-1188). An unauthenticated remote attacker who reaches port 8120 can present any generated keypair to connect as a trusted Core and run commands on managed hosts, typically as root.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
Description from the CNA
Komodo through 2.3.3 contains an authentication bypass vulnerability in the Periphery agent that allows unauthenticated attackers to connect as a trusted Core because empty core_public_keys and passkeys lists fail open by default. Attackers reaching port 8120 can present any generated keypair to issue Periphery API requests, including terminal sessions and container operations, executing commands on managed hosts typically as root.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
The sources list no fixed version for Komodo.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
Timeline
- 2026-10-14 Threatist record created from CVE-2026-110631
- 2026-10-14 Alias added: GHSA-6388-9x82-rf3x
- 2026-10-20 CISA SSVC decision points changed
- 2026-10-20 Priority changed: MEDIUM → HIGH
References
Other 6
- https://github.com/moghtech/komodo/issues/1690
- https://github.com/moghtech/komodo/blob/v2.3.3/bin/periphery/src/state.rs#L82-L88
- https://github.com/moghtech/komodo/blob/v2.3.3/bin/periphery/src/connection/server.rs
- https://github.com/moghtech/komodo/blob/v2.3.3/config/periphery.config.toml
- https://github.com/moghtech/komodo/blob/v1.19.5/bin/periphery/src/api/router.rs
- https://ravindulakmina.pages.dev/advisories/komodo-periphery-fail-open-rce/
More moghtech vulnerabilities
- TI-2026-56732 Komodo Resource Identifier Disclosure and Audit Log Pollution Before Permission Check CVSS 4.0MEDIUM 5.3
Sources
- CVE-2026-110631 · CVE Program
- CVE-2026-110631 · NVD
- FIRST EPSS
- GHSA-6388-9x82-rf3x · GitHub Advisory Database · CC BY 4.0
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