{"cve":"CVE-2026-53851","nvd":{"published":"2026-06-16T19:17:02.327","modified":"2026-10-25T23:10:00.167","status":"Analyzed","description":"OpenClaw before 2026.5.12 contains a notification bypass vulnerability allowing Slack reaction events to enter the agent pipeline despite disabled reaction notifications. Attackers can trigger unintended agent processing by sending reaction events when the feature is enabled, potentially leading to unauthorized processing of lower-trust input.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","score":6.3},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","score":5.3},"cwes":["CWE-862"],"references":["https://github.com/openclaw/openclaw/security/advisories/GHSA-fcvx-5cxc-v5p8","https://www.vulncheck.com/advisories/openclaw-slack-reaction-event-notification-bypass"],"products":["openclaw:openclaw"],"source":"nvd","synced_at":"2026-10-25T23:44:33.281319194+00:00"},"epss":{"cve":"CVE-2026-53851","score":0.00191,"percentile":0.08719,"date":"2026-10-26"},"kev":null,"osv":[{"id":"GHSA-fcvx-5cxc-v5p8","url":"https://osv.dev/vulnerability/GHSA-fcvx-5cxc-v5p8","summary":"OpenClaw: Slack reaction events could ignore reaction notification settings","modified":"2026-06-18T20:26:31.920706Z","packages":[{"ecosystem":"npm","name":"openclaw","purl":"pkg:npm/openclaw","ranges":["<2026.5.12"],"fixed":["2026.5.12"]}]}],"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."]}