Improper Handling of Highly Compressed Data (Data Amplification) Affecting github.com/labstack/echo/v5/middleware package, versions >=4.0.0 <4.16.1
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- published24 Oct 2026
- disclosed23 Oct 2026
- creditUnknown
Introduced: 23 Oct 2026
New CVE NOT AVAILABLE CWE-400 (opens in a new tab)How to fix?
Upgrade github.com/labstack/echo/v5/middleware to version 4.16.1 or higher.
Overview
github.com/labstack/echo/v5/middleware is a middleware package for echo.
Affected versions of this package are vulnerable to Improper Handling of Highly Compressed Data (Data Amplification) via the Decompress middleware. An attacker can exhaust memory or CPU resources by sending a small, compressed request that expands to a very large decoded body, especially when handlers read or bind the body. This is only exploitable if the Decompress middleware is enabled and no effective body limit is applied after decompression.
Workaround
This vulnerability can be mitigated by disabling gzip request decompression on exposed routes, placing BodyLimit after Decompress so the application limit applies to decoded bytes, or applying suitable request deadlines and concurrency limits.