Resource Exhaustion Affecting golang-github-labstack-echo package, versions *

Note: Versions mentioned in the description apply only to the upstream golang-github-labstack-echo package and not the golang-github-labstack-echo package as distributed by Debian. See How to fix? for Debian:14 relevant fixed versions and status.

Echo is a Go web framework. From 4.0.0 until 4.16.1, Echo v4's opt-in Decompress middleware exposes a gzip-decoded request stream without limiting its expanded size. A small compressed request can expand into a very large body when a handler reads or binds it, consuming excessive memory or CPU and allowing repeated or concurrent requests to cause denial of service. The middleware is not enabled by default, and limiting only the compressed request size does not bound the decoded size. This issue is fixed in 4.16.1.

• https://security-tracker.debian.org/tracker/CVE-2026-118261
• https://github.com/labstack/echo/commit/3fb0ba7e17645bb65611e2a08875d0a2f65c421f
• https://github.com/labstack/echo/releases/tag/v4.16.1
• https://github.com/labstack/echo/security/advisories/GHSA-h7wr-284f-5qvc