Описание
Security update for mcphost
This update for mcphost fixes the following issues:
- CVE-2026-41178: go.opentelemetry.io/otel/baggage: no rejection of raw-length headers in baggage parsing allows for DoS via oversized inputs (bsc#1276612).
- CVE-2026-81092: github.com/mark3labs/mcp-go/server: requests accepted in HTTP transports without Host header checks can lead to tool usage and resource exposure in target server (bsc#1278013).
Changes for mcphost:
- Update github.com/mark3labs/mcp-go/server to v0.56.0.
- Update go.opentelemetry.io/otel to 1.44.0.
Список пакетов
openSUSE Leap 16.0
Ссылки
- SUSE Security Ratings
- SUSE Bug 1276612
- SUSE Bug 1278013
- SUSE CVE CVE-2026-41178 page
- SUSE CVE CVE-2026-81092 page
Описание
OpenTelemetry-Go is the Go implementation of OpenTelemetry. Versions 1.41.0 and 1.43.0 removed raw-length rejection and it causes `Parse` to process arbitrarily large/invalid baggage headers and log errors, enabling DoS via oversized inputs. Versions 1.42.0 and 1.44.0 fix the issue.
Затронутые продукты
Ссылки
- CVE-2026-41178
- SUSE Bug 1276509
Описание
mcp-go accepted requests on its HTTP transports without checking the Host header. StreamableHTTPServer.ServeHTTP in server/streamable_http.go and SSEServer.ServeHTTP in server/sse.go served any request arriving over a loopback connection regardless of the host it named, and the SSE transport's cross-origin default allowed any origin. A page in a browser could therefore point a name it controlled at the loopback address and reach a server listening there, invoking tools and reading resources that the server exposed on the assumption that only local software could connect. No release before 0.56.0 validated the header on either transport; 0.56.0 adds server/http_localhost.go, which rejects a loopback-bound request carrying a host that is not a loopback name, and wires it into both transports.
Затронутые продукты
Ссылки
- CVE-2026-81092
- SUSE Bug 1278012