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Vulnerability · Published Jul 16, 2026 · Assigned by GitHub_M

CVE-2026-44982CrowdSec AppSec silently drops request body for chunked / HTTP-2 requests

High 7.2

In plain English

A high-severity security flaw in crowdsec from crowdsecurity. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 31% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.2High
Exploit odds (30 days)0.4%top 68.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Gogithub.com/crowdsecurity/crowdsec1.7.8GHSA-rw47-hm26-6wr7
Gogithub.com/crowdsecurity/crowdsec1.7.8GO-2026-5641
Ubuntu:26.10crowdsecno fix listedUBUNTU-CVE-2026-44982

Affected products (as reported)

VendorProductVersions
crowdsecurity crowdsec >= 1.5.0, < 1.7.8

Weakness: CWE-693 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

References