<?xml version="1.0" encoding="UTF-8"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>io.github.cyanheads/clinicaltrialsgov-mcp-server · clinicaltrials · changes | VerifyMCP</title><description>Recorded changes to this MCP component: tools, parameters, capabilities, advisories and trust-score checks. Security-relevant changes by default; append ?materiality=all for everything.</description><link>https://verifymcp.io</link><atom:link href="https://verifymcp.io/servers/cyanheads-clinicaltrialsgov-mcp-server/clinicaltrials.xml" rel="self" type="application/rss+xml"/><item><title>[SECURITY] clinicaltrials: Tool “clinicaltrials_get_study_results” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/cyanheads-clinicaltrialsgov-mcp-server/clinicaltrials#chg-chg_01a096fd-ef8b-7ca8-915e-42c2d651348c</link><guid isPermaLink="true">https://verifymcp.io/servers/cyanheads-clinicaltrialsgov-mcp-server/clinicaltrials#chg-chg_01a096fd-ef8b-7ca8-915e-42c2d651348c</guid><description>Tool “clinicaltrials_get_study_results” rewrote its description, which is the text the model reads. Compared against 2026-09-12.</description><pubDate>Sat, 12 Sep 2026 19:00:19 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] clinicaltrials: Stability (0.97 → pass)</title><link>https://verifymcp.io/servers/cyanheads-clinicaltrialsgov-mcp-server/clinicaltrials#chg-chg_01a083e9-722a-72fb-8d7c-3507ce341c18</link><guid isPermaLink="true">https://verifymcp.io/servers/cyanheads-clinicaltrialsgov-mcp-server/clinicaltrials#chg-chg_01a083e9-722a-72fb-8d7c-3507ce341c18</guid><description>Stability (0.97 → pass). Compared against 2026-09-08.</description><pubDate>Wed, 09 Sep 2026 02:05:09 GMT</pubDate><category>security</category><category>neutral</category><category>check.verdict</category></item><item><title>[SECURITY] clinicaltrials: Stability (0.97 → pass)</title><link>https://verifymcp.io/servers/cyanheads-clinicaltrialsgov-mcp-server/clinicaltrials#chg-chg_01a036a9-777a-78f1-bcb8-f5ca5b21bbd8</link><guid isPermaLink="true">https://verifymcp.io/servers/cyanheads-clinicaltrialsgov-mcp-server/clinicaltrials#chg-chg_01a036a9-777a-78f1-bcb8-f5ca5b21bbd8</guid><description>Stability (0.97 → pass). Compared against 2026-08-24.</description><pubDate>Tue, 25 Aug 2026 02:04:30 GMT</pubDate><category>security</category><category>neutral</category><category>check.verdict</category></item><item><title>[SECURITY] clinicaltrials: Tool “clinicaltrials_find_eligible” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/cyanheads-clinicaltrialsgov-mcp-server/clinicaltrials#chg-chg_01a015d0-fb9a-76c2-906a-82e207e4f440</link><guid isPermaLink="true">https://verifymcp.io/servers/cyanheads-clinicaltrialsgov-mcp-server/clinicaltrials#chg-chg_01a015d0-fb9a-76c2-906a-82e207e4f440</guid><description>Tool “clinicaltrials_find_eligible” rewrote its description, which is the text the model reads. Compared against 2026-08-18.</description><pubDate>Tue, 18 Aug 2026 17:00:12 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] clinicaltrials: Tool “clinicaltrials_get_study_results” rewrote its description, which is the text the model reads</title><link>https://verifymcp.io/servers/cyanheads-clinicaltrialsgov-mcp-server/clinicaltrials#chg-chg_01a015d0-fb9c-7027-91a8-c5f4e13e759f</link><guid isPermaLink="true">https://verifymcp.io/servers/cyanheads-clinicaltrialsgov-mcp-server/clinicaltrials#chg-chg_01a015d0-fb9c-7027-91a8-c5f4e13e759f</guid><description>Tool “clinicaltrials_get_study_results” rewrote its description, which is the text the model reads. Compared against 2026-08-18.</description><pubDate>Tue, 18 Aug 2026 17:00:12 GMT</pubDate><category>security</category><category>neutral</category><category>tool.description_changed</category></item><item><title>[SECURITY] clinicaltrials: Authorization (Authorisation not fully verified: no authorisation is required to call this server, and 7 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe.)</title><link>https://verifymcp.io/servers/cyanheads-clinicaltrialsgov-mcp-server/clinicaltrials#chg-chg_019fe969-c922-7c87-8da7-5f4065c5b033</link><guid isPermaLink="true">https://verifymcp.io/servers/cyanheads-clinicaltrialsgov-mcp-server/clinicaltrials#chg-chg_019fe969-c922-7c87-8da7-5f4065c5b033</guid><description>Authorization (Authorisation not fully verified: no authorisation is required to call this server, and 7 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe.). Compared against 2026-08-09.</description><pubDate>Mon, 10 Aug 2026 02:04:11 GMT</pubDate><category>security</category><category>neutral</category><category>check.reason</category></item><item><title>[SECURITY] clinicaltrials: Transport (fail → pass)</title><link>https://verifymcp.io/servers/cyanheads-clinicaltrialsgov-mcp-server/clinicaltrials#chg-chg_019fe969-c922-757d-9674-93168f21e1bc</link><guid isPermaLink="true">https://verifymcp.io/servers/cyanheads-clinicaltrialsgov-mcp-server/clinicaltrials#chg-chg_019fe969-c922-757d-9674-93168f21e1bc</guid><description>Transport (fail → pass). Compared against 2026-08-09.</description><pubDate>Mon, 10 Aug 2026 02:04:11 GMT</pubDate><category>security</category><category>improvement</category><category>check.verdict</category></item><item><title>[SECURITY] clinicaltrials: HSTS header (fail → pass)</title><link>https://verifymcp.io/servers/cyanheads-clinicaltrialsgov-mcp-server/clinicaltrials#chg-chg_019fe969-c921-73bd-a27c-57c00c89595c</link><guid isPermaLink="true">https://verifymcp.io/servers/cyanheads-clinicaltrialsgov-mcp-server/clinicaltrials#chg-chg_019fe969-c921-73bd-a27c-57c00c89595c</guid><description>HSTS header (fail → pass). Compared against 2026-08-09.</description><pubDate>Mon, 10 Aug 2026 02:04:11 GMT</pubDate><category>security</category><category>improvement</category><category>check.verdict</category></item><item><title>[SECURITY] clinicaltrials: HSTS header (pass → fail)</title><link>https://verifymcp.io/servers/cyanheads-clinicaltrialsgov-mcp-server/clinicaltrials#chg-chg_019fdf1d-00a2-7e2c-83e9-b22d295c6a3a</link><guid isPermaLink="true">https://verifymcp.io/servers/cyanheads-clinicaltrialsgov-mcp-server/clinicaltrials#chg-chg_019fdf1d-00a2-7e2c-83e9-b22d295c6a3a</guid><description>HSTS header (pass → fail). Compared against 2026-08-07.</description><pubDate>Sat, 08 Aug 2026 02:04:07 GMT</pubDate><category>security</category><category>regression</category><category>check.verdict</category></item><item><title>[SECURITY] clinicaltrials: Endpoint reachability (reachable → not serving MCP)</title><link>https://verifymcp.io/servers/cyanheads-clinicaltrialsgov-mcp-server/clinicaltrials#chg-chg_019fdf1d-00a5-7a97-85ce-1bd69fcd40aa</link><guid isPermaLink="true">https://verifymcp.io/servers/cyanheads-clinicaltrialsgov-mcp-server/clinicaltrials#chg-chg_019fdf1d-00a5-7a97-85ce-1bd69fcd40aa</guid><description>Endpoint reachability (reachable → not serving MCP). Compared against 2026-08-07.</description><pubDate>Sat, 08 Aug 2026 02:04:07 GMT</pubDate><category>security</category><category>regression</category><category>capture.status_changed</category></item><item><title>[SECURITY] clinicaltrials: Authorization (Authorisation not fully verified: no authorisation is required to connect, but we couldn&apos;t read the tool list to see what that exposes.)</title><link>https://verifymcp.io/servers/cyanheads-clinicaltrialsgov-mcp-server/clinicaltrials#chg-chg_019fdf1d-00a3-745e-a4a2-dca6bed358d4</link><guid isPermaLink="true">https://verifymcp.io/servers/cyanheads-clinicaltrialsgov-mcp-server/clinicaltrials#chg-chg_019fdf1d-00a3-745e-a4a2-dca6bed358d4</guid><description>Authorization (Authorisation not fully verified: no authorisation is required to connect, but we couldn&apos;t read the tool list to see what that exposes.). Compared against 2026-08-07.</description><pubDate>Sat, 08 Aug 2026 02:04:07 GMT</pubDate><category>security</category><category>neutral</category><category>check.reason</category></item><item><title>[SECURITY] clinicaltrials: Stability (0.40 → unverified)</title><link>https://verifymcp.io/servers/cyanheads-clinicaltrialsgov-mcp-server/clinicaltrials#chg-chg_019fdf1d-00a2-784c-a5e1-89c6b9bd6eea</link><guid isPermaLink="true">https://verifymcp.io/servers/cyanheads-clinicaltrialsgov-mcp-server/clinicaltrials#chg-chg_019fdf1d-00a2-784c-a5e1-89c6b9bd6eea</guid><description>Stability (0.40 → unverified). Compared against 2026-08-07.</description><pubDate>Sat, 08 Aug 2026 02:04:07 GMT</pubDate><category>security</category><category>regression</category><category>check.unverifiable</category></item><item><title>[SECURITY] clinicaltrials: Transport (pass → fail)</title><link>https://verifymcp.io/servers/cyanheads-clinicaltrialsgov-mcp-server/clinicaltrials#chg-chg_019fdf1d-00a1-77b8-9c14-f7fb9e899c75</link><guid isPermaLink="true">https://verifymcp.io/servers/cyanheads-clinicaltrialsgov-mcp-server/clinicaltrials#chg-chg_019fdf1d-00a1-77b8-9c14-f7fb9e899c75</guid><description>Transport (pass → fail). Compared against 2026-08-07.</description><pubDate>Sat, 08 Aug 2026 02:04:07 GMT</pubDate><category>security</category><category>regression</category><category>check.verdict</category></item></channel></rss>