Vulnerability in Crowdsecurity Crowdsec
CVE-2026-44982
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.004 (29.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 30th percentile — 29.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Crowdsecurity Crowdsec — versions >= 1.5.0, < 1.7.8
Weakness classification (CWE)
References
- github.com/crowdsecurity/crowdsec/commit/3d5c4d9b127091e9063b9b5eb785372a599a44…
- github.com/crowdsecurity/crowdsec/commit/57a793548671e6bbd2cde5562fe87b856ec9c6…
- github.com/crowdsecurity/crowdsec/pull/4355
- github.com/crowdsecurity/crowdsec/releases/tag/v1.7.8
- github.com/crowdsecurity/crowdsec/security/advisories/GHSA-rw47-hm26-6wr7
Frequently asked questions
- What is CVE-2026-44982?
- CVE-2026-44982 is a high-severity vulnerability in Crowdsecurity Crowdsec, classified under Protection Mechanism Failure. CVSS score: 7.2/10. Published 2026-07-16.
- How severe is CVE-2026-44982?
- High severity. CVSS v3 base score is 7.2 out of 10.