CVE-2026-110631 (CVSS 9.8)

Description

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.

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CVSS v3.1 Score

9.8

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS — Exploit Prediction

0.0072

Probability of exploitation

0.53%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-1188 CWE-1188

References

Other References

https://github.com/moghtech/komodo/blob/v1.19.5/bin/periphery/src/api/router.rs https://github.com/moghtech/komodo/blob/v2.3.3/bin/periphery/src/connection/server.rs 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/config/periphery.config.toml https://github.com/moghtech/komodo/issues/1690 https://ravindulakmina.pages.dev/advisories/komodo-periphery-fail-open-rce/ https://www.vulncheck.com/advisories/komodo-through-2.3.3-periphery-agent-unauthenticated-rce-via-default-configuration

Frequently Asked Questions

What is CVE-2026-110631? +

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. It has a CVSS v3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2026-110631? +

CVE-2026-110631 has a CVSS v3.1 score of 9.8 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately. The EPSS score is 0.0072, placing it in the 1th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-110631? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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