CVE-2026-44981 CrowdSec LAPI: Denial of Service via Unbounded Gzip Decompression

CrowdSec offers crowdsourced protection against malicious IPs. From 1.7.0 until 1.7.8, the LAPI router used gin-contrib/gzip with DefaultDecompressHandle globally in pkg/apiserver/controllers/controller.go, causing /v1/watchers and /v1/watchers/login to decompress unauthenticated gzip-compressed...

Improper Handling of Highly Compressed Data (Data Amplification)

Overview Affected versions of this package are vulnerable to Improper Handling of Highly Compressed Data Data Amplification via the DefaultDecompressHandle process. An attacker can cause the server to allocate excessive memory and terminate unexpectedly by sending specially crafted gzip-compresse...

CrowdSec LAPI: Denial of Service via Unbounded Gzip Decompression

The LAPI router uses gin-contrib/gzip with DefaultDecompressHandle globally pkg/apiserver/controllers/controller.go. This middleware decompresses incoming request bodies without enforcing a maximum decompressed size. The endpoints /v1/watchers or /v1/watchers/login require no authentication. An...

GHSA-273H-GVWR-C3QJ CrowdSec LAPI: Denial of Service via Unbounded Gzip Decompression

The LAPI router uses gin-contrib/gzip with DefaultDecompressHandle globally pkg/apiserver/controllers/controller.go. This middleware decompresses incoming request bodies without enforcing a maximum decompressed size. The endpoints /v1/watchers or /v1/watchers/login require no authentication. An...