Vulnerability · Published Mar 9, 2026 · Assigned by VulnCheck

CVE-2026-29023Keygraph Shannon Hard-coded Router API Key

High 7.3

In plain English

A high-severity hard-coded credentials in Shannon from KeygraphHQ. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 21% of all known vulnerabilities).

Severity (CVSS 3.1)7.3High

Exploit odds (30 days)0.3%top 79.2% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Keygraph Shannon contains a hard-coded API key in its router configuration that, when the router component is enabled and exposed, allows network attackers to authenticate using the publicly known static key. An attacker able to reach the router port can proxy requests through the Shannon instance using the victim’s configured upstream provider API credentials, resulting in unauthorized API usage and potential disclosure of proxied request and response data. This vulnerability's general exploitability has been mitigated with the introduction of commit 023cc95.

Affected products (as reported)

Vendor	Product	Versions
KeygraphHQ	Shannon	0 – before 023cc953db742602964b7826105278d15c28a420

Weakness: CWE-798 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

References

https://github.com/KeygraphHQ/shannon/issues/186 issue-tracking
https://github.com/KeygraphHQ/shannon/pull/224 issue-tracking
https://github.com/KeygraphHQ/shannon/pull/224/changes/023cc953db742602964b7826105278d15c28a420 issue-tracking
https://www.vulncheck.com/advisories/keygraph-shannon-hard-coded-router-api-key third-party-advisory