What’s Vulnerable › Vulnerabilities

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

• Severity: high (CVSS 7.2 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-16 · updated 2026-10-24
• Weakness: CWE-693

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 products

• crowdsecurity crowdsec: from 1.5.0, < 1.7.8

References

• https://github.com/crowdsecurity/crowdsec/commit/3d5c4d9b127091e9063b9b5eb785372a599a4435
• https://github.com/crowdsecurity/crowdsec/commit/57a793548671e6bbd2cde5562fe87b856ec9c642
• https://github.com/crowdsecurity/crowdsec/pull/4355
• https://github.com/crowdsecurity/crowdsec/releases/tag/v1.7.8
• https://github.com/crowdsecurity/crowdsec/security/advisories/GHSA-rw47-hm26-6wr7

Get alerted when CVE-2026-44982 or the next vulnerability affects your stack