{"id":"CVE-2026-44981","aliases":["GHSA-273h-gvwr-c3qj","GO-2026-5041"],"url":"https://o3.security/vulnerability/CVE-2026-44981","summary":"CrowdSec LAPI: Denial of Service via Unbounded Gzip Decompression","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.","published":"2026-07-16T19:47:30.747Z","modified":"2026-08-12T03:51:48.184615010Z","cvss":null,"epss":{"score":0.00292,"percentile":0.21745,"asOf":"2026-08-16"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Go","name":"github.com/crowdsecurity/crowdsec","fixedVersion":"1.7.8"}],"fix":{"url":"https://github.com/crowdsecurity/crowdsec/commit/54a0dfe6c16b7687b0da6634e0b19ef0f5d9bb30","label":"crowdsecurity/crowdsec@54a0dfe"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44981.json"},{"type":"ADVISORY","url":"https://github.com/crowdsecurity/crowdsec/security/advisories/GHSA-273h-gvwr-c3qj"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-44981"},{"type":"FIX","url":"https://github.com/crowdsecurity/crowdsec/commit/54a0dfe6c16b7687b0da6634e0b19ef0f5d9bb30"},{"type":"FIX","url":"https://github.com/crowdsecurity/crowdsec/commit/56d0d6915f7f25941dc5b4f484028646f6601a37"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:48.184615010Z"}}