CVE-2026-118263
Severity not reportedEcho is a Go web framework.
Echo is a Go web framework. From 5.0.0 until 5.4.1, Echo v5's BodyDump middleware can discard a BodyLimit overflow error for an unknown-length request when BodyDump's capture limit is below the BodyLimit threshold. BodyDump drains the remaining body while ignoring read errors and replaces it with the captured prefix, so an HTTP/1.1 chunked request can be truncated and processed successfully even though the original body exceeded the configured limit. Known-length requests rejected before BodyDump runs are unaffected, and the issue does not establish a general authentication bypass or denial of service. This issue is fixed in 5.4.1.
Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/labstack/echo/commit/1855061e572ae9dab727c811d8382f266bfbaaec security-advisories@github.com
- https://github.com/labstack/echo/pull/3105 security-advisories@github.com
- https://github.com/labstack/echo/releases/tag/v5.4.1 security-advisories@github.com
- https://github.com/labstack/echo/security/advisories/GHSA-x9ff-22gv-65f4 security-advisories@github.com