{"cve":"CVE-2026-41405","nvd":{"published":"2026-04-28T19:37:44.090","modified":"2026-06-17T10:46:40.410","status":"Analyzed","description":"OpenClaw before 2026.3.31 parses MS Teams webhook request bodies before performing JWT validation, allowing unauthenticated attackers to trigger resource exhaustion. Remote attackers can send malicious Teams webhook payloads to exhaust server resources by bypassing authentication checks.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","score":8.7},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5},"cwes":["CWE-408"],"references":["https://github.com/openclaw/openclaw/commit/3834d47099dd13c8244ed6de8b9ea9855c553623","https://github.com/openclaw/openclaw/security/advisories/GHSA-p464-m8x6-vhv8","https://www.vulncheck.com/advisories/openclaw-resource-exhaustion-via-unauthenticated-ms-teams-webhook-body-parsing"],"products":["openclaw:openclaw"],"source":"nvd","synced_at":"2026-10-19T22:33:09.003606135+00:00"},"epss":{"cve":"CVE-2026-41405","score":0.00481,"percentile":0.4151,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-p464-m8x6-vhv8","url":"https://osv.dev/vulnerability/GHSA-p464-m8x6-vhv8","summary":"OpenClaw: MS Teams webhook parses body before JWT validation, enabling unauthenticated resource exhaustion","modified":"2026-05-06T02:51:20.087107Z","packages":[{"ecosystem":"npm","name":"openclaw","purl":"pkg:npm/openclaw","ranges":["<2026.3.31"],"fixed":["2026.3.31"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}