{"id":"UBUNTU-CVE-2026-44981","details":"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.","modified":"2026-07-29T07:57:02Z","published":"2026-07-16T20:16:00Z","upstream":["CVE-2026-44981"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-44981"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-44981"},{"type":"REPORT","url":"https://github.com/crowdsecurity/crowdsec/commit/54a0dfe6c16b7687b0da6634e0b19ef0f5d9bb30"},{"type":"REPORT","url":"https://github.com/crowdsecurity/crowdsec/commit/56d0d6915f7f25941dc5b4f484028646f6601a37"},{"type":"REPORT","url":"https://github.com/crowdsecurity/crowdsec/security/advisories/GHSA-273h-gvwr-c3qj"}],"affected":[{"package":{"name":"crowdsec","ecosystem":"Ubuntu:Pro:24.04:LTS","purl":"pkg:deb/ubuntu/crowdsec?arch=source&distro=esm-apps%2Fnoble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.4.6-6build1","1.4.6-6ubuntu0.24.04.1","1.4.6-6ubuntu0.24.04.1+esm1","1.4.6-6ubuntu0.24.04.1+esm2","1.4.6-6ubuntu0.24.04.2","1.4.6-6ubuntu0.24.04.2+esm1","1.4.6-6ubuntu0.24.04.2+esm2"],"ecosystem_specific":{"binaries":[{"binary_version":"1.4.6-6ubuntu0.24.04.2+esm2","binary_name":"crowdsec"},{"binary_name":"golang-github-crowdsecurity-crowdsec-dev","binary_version":"1.4.6-6ubuntu0.24.04.2+esm2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-44981.json"}},{"package":{"name":"crowdsec","ecosystem":"Ubuntu:Pro:26.04:LTS","purl":"pkg:deb/ubuntu/crowdsec?arch=source&distro=esm-apps%2Fresolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.4.6-10","1.4.6-10.1","1.4.6-10.1ubuntu0.26.04.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"crowdsec","binary_version":"1.4.6-10.1ubuntu0.26.04.1~esm1"},{"binary_version":"1.4.6-10.1ubuntu0.26.04.1~esm1","binary_name":"golang-github-crowdsecurity-crowdsec-dev"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-44981.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V4","score":"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"},{"type":"Ubuntu","score":"medium"}]}