CVE-2026-44981

high

Description

CrowdSec offers crowdsourced protection against malicious IPs. From 1.7.0 until 1.7.8, the LAPI router used gin-contrib/gzip with DefaultDecompressHandle globally in pkg/apiserver/controllers/controller.go, causing /v1/watchers and /v1/watchers/login to decompress unauthenticated gzip-compressed JSON request bodies without enforcing a maximum decompressed size and allowing excessive heap allocation that can make LAPI unreachable. This issue is fixed in version 1.7.8.

References

https://github.com/crowdsecurity/crowdsec/security/advisories/GHSA-273h-gvwr-c3qj

https://github.com/crowdsecurity/crowdsec/commit/56d0d6915f7f25941dc5b4f484028646f6601a37

https://github.com/crowdsecurity/crowdsec/commit/54a0dfe6c16b7687b0da6634e0b19ef0f5d9bb30

Details

Source: Mitre, NVD

Published: 2026-07-16

Updated: 2026-07-17

Risk Information

CVSS v2

Base Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

Severity: Medium

CVSS v3

Base Score: 7.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Severity: High

CVSS v4

Base Score: 8.2

Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Severity: High

EPSS

EPSS: 0.00074