{"action":"Upgrade openclaw to 2026.5.26 or later.","affected":[{"fixed":"2026.5.26","introduced":"0"}],"component":"openclaw","cve_ids":["CVE-2026-53859"],"ecosystem":"npm","epss":0.0021,"exploited":false,"fixed_versions":["2026.5.26"],"ghsa_id":"GHSA-gxg4-2rrr-jhc7","id":"tcs_01M5KFSR3XPBEG0VH97E9D9S3R","modified_at":"2026-06-18T20:26:32.057864Z","published_at":"2026-06-18T20:11:31Z","references":["https://osv.dev/vulnerability/GHSA-gxg4-2rrr-jhc7","https://github.com/openclaw/openclaw/security/advisories/GHSA-gxg4-2rrr-jhc7","https://nvd.nist.gov/vuln/detail/CVE-2026-53859","https://github.com/openclaw/openclaw","https://www.vulncheck.com/advisories/openclaw-hostname-validation-bypass-via-trailing-dot-inconsistency"],"severity":{"label":"medium","score":6.5},"sources":[{"source":"osv","source_id":"GHSA-gxg4-2rrr-jhc7","url":"https://osv.dev/vulnerability/GHSA-gxg4-2rrr-jhc7"}],"summary":"OpenClaw: Hostname checks could treat trailing-dot hosts inconsistently"}