{"document":{"category":"csaf_vex","csaf_version":"2.0","title":"CVE-2026-53823: OpenClaw < 2026.5.3 - Privilege Escalation via Mutable Slack Display Names in allowFrom","publisher":{"category":"vendor","name":"HarborGuard Database","namespace":"https://database.harborguard.co"},"tracking":{"id":"CVE-2026-53823","status":"final","version":"1","initial_release_date":"2026-06-12T21:56:50.938Z","current_release_date":"2026-06-15T19:26:54.755Z","revision_history":[{"date":"2026-06-12T21:56:50.938Z","number":"1","summary":"Initial machine-readable export from HarborGuard."}]},"distribution":{"tlp":{"label":"WHITE"},"text":"Public CVE data; freely redistributable."},"notes":[{"category":"description","text":"OpenClaw before 2026.5.3 contains a privilege escalation vulnerability in the allowFrom feature that binds to mutable Slack display names. Attackers with Slack account access can change display name metadata to match policy entries, potentially gaining unauthorized agent access intended for other identities.","title":"CVE description"}],"references":[{"category":"self","summary":"CVE-2026-53823 on HarborGuard Database","url":"https://database.harborguard.co/cve/CVE-2026-53823"},{"category":"external","summary":"CVE Record","url":"https://www.cve.org/CVERecord?id=CVE-2026-53823"},{"category":"external","summary":"GitHub Security Advisory (GHSA-c29c-2q9c-pc86)","url":"https://github.com/openclaw/openclaw/security/advisories/GHSA-c29c-2q9c-pc86"},{"category":"external","summary":"VulnCheck Advisory: OpenClaw < 2026.5.3 - Privilege Escalation via Mutable Slack Display Names in allowFrom","url":"https://www.vulncheck.com/advisories/openclaw-privilege-escalation-via-mutable-slack-display-names-in-allowfrom"}]},"product_tree":{"branches":[{"category":"vendor","name":"OpenClaw","branches":[{"category":"product_name","name":"OpenClaw","branches":[{"category":"product_version_range","name":"<2026.5.3","product":{"name":"OpenClaw OpenClaw <2026.5.3","product_id":"CSAFPID-1","product_identification_helper":{"cpe":"cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:*:*:*"}}},{"category":"product_version","name":"2026.5.3","product":{"name":"OpenClaw OpenClaw 2026.5.3","product_id":"CSAFPID-2","product_identification_helper":{"cpe":"cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:*:*:*"}}}]}]}]},"vulnerabilities":[{"cve":"CVE-2026-53823","title":"OpenClaw < 2026.5.3 - Privilege Escalation via Mutable Slack Display Names in allowFrom","notes":[{"category":"description","text":"OpenClaw before 2026.5.3 contains a privilege escalation vulnerability in the allowFrom feature that binds to mutable Slack display names. Attackers with Slack account access can change display name metadata to match policy entries, potentially gaining unauthorized agent access intended for other identities.","title":"CVE description"}],"product_status":{"known_affected":["CSAFPID-1"],"fixed":["CSAFPID-2"]},"scores":[{"cvss_v4":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","baseScore":8.6,"baseSeverity":"HIGH"},"products":["CSAFPID-1"]}],"remediations":[{"category":"vendor_fix","details":"Update to a fixed version: 2026.5.3.","product_ids":["CSAFPID-1"]}]}]}