CVE-2026-44982CWE-693

CrowdSec AppSec silently drops request body for chunked / HTTP-2 requests

High · published July 16, 2026

CVSS v3.1
7.2
EPSS
0%
Percentile
30.0
In the wild
Unconfirmed
What it is

CrowdSec offers crowdsourced protection against malicious IPs. From 1.5.0 until 1.7.8, pkg/appsec/request.go NewParsedRequestFromRequest allocated a request body buffer from max(r.ContentLength, 0), so HTTP/1.1 requests using Transfer-Encoding: chunked and HTTP/2 requests without a content-length header produced an empty body and caused WAF rules targeting REQUEST_BODY, BODY_ARGS, ARGS_POST, JSON, or XML to be skipped. This issue is fixed in version 1.7.8.

The record
Technical detail
CVSS v3.1
7.2 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00372 · 30.0th percentile
Weakness
CWE-693 · Protection Mechanism Failure
Published
2026-07-16T19:50Z
EPSS history
Timeline
  • 16 JUL 19:50Z
    CrowdSec AppSec silently drops request body for chunked / HTTP-2 requests
    cvelistv5