CVE-2026-28449 OpenClaw < 2026.2.25 - Webhook Replay Attack via Missing Durable Replay Suppression

OpenClaw versions prior to 2026.2.25 lack durable replay state for Nextcloud Talk webhook events, allowing valid signed webhook requests to be replayed without suppression. Attackers can capture and replay previously valid signed webhook requests to trigger duplicate inbound message processing an...

CVE-2026-28449

OpenClaw versions prior to 2026.2.25 lack durable replay state for Nextcloud Talk webhook events, allowing valid signed webhook requests to be replayed without suppression. Attackers can capture and replay previously valid signed webhook requests to trigger duplicate inbound message processing an...

CVE-2026-28449 OpenClaw < 2026.2.25 - Webhook Replay Attack via Missing Durable Replay Suppression

OpenClaw versions prior to 2026.2.25 lack durable replay state for Nextcloud Talk webhook events, allowing valid signed webhook requests to be replayed without suppression. Attackers can capture and replay previously valid signed webhook requests to trigger duplicate inbound message processing an...

CVE-2026-28449

OpenClaw versions prior to 2026.2.25 are affected by a missing durable replay suppression for Nextcloud Talk webhook events. This allows valid signed webhook requests to be replayed, triggering duplicate inbound message processing and potentially impacting integrity and availability. The vulnerab...

EUVD-2026-13011

OpenClaw versions prior to 2026.2.25 lack durable replay state for Nextcloud Talk webhook events, allowing valid signed webhook requests to be replayed without suppression. Attackers can capture and replay previously valid signed webhook requests to trigger duplicate inbound message processing an...

CVE-2026-28449 OpenClaw < 2026.2.25 - Webhook Replay Attack via Missing Durable Replay Suppression

OpenClaw versions prior to 2026.2.25 lack durable replay state for Nextcloud Talk webhook events, allowing valid signed webhook requests to be replayed without suppression. Attackers can capture and replay previously valid signed webhook requests to trigger duplicate inbound message processing an...

OpenClaw 安全漏洞

OpenClaw is an open-source intelligent artificial assistant developed by OpenClaw. Versions of OpenClaw prior to 2026.2.25 contained security vulnerabilities. These vulnerabilities stemmed from a lack of persistent replay protection for Nextcloud Talk webhook events. This allowed attackers to...

CVE-2026-28474

OpenClaw's Nextcloud Talk plugin versions prior to 2026.2.6 accept equality matching on the mutable actor.name display name field for allowlist validation, allowing attackers to bypass DM and room allowlists. An attacker can change their Nextcloud display name to match an allowlisted user ID and...

CVE-2026-28474

OpenClaw's Nextcloud Talk plugin versions prior to 2026.2.6 accept equality matching on the mutable actor.name display name field for allowlist validation, allowing attackers to bypass DM and room allowlists. An attacker can change their Nextcloud display name to match an allowlisted user ID and...

CVE-2026-28474

OpenClaw's Nextcloud Talk plugin (versions prior to 2026.2.6) is affected by a flaw in equality matching on the mutable actor.name display name used for allowlist validation, allowing an attacker to spoof a display name to match an allowlisted user ID and gain unauthorized access to restricted co...

CVE-2026-28474 OpenClaw Nextcloud Talk < 2026.2.6 - Allowlist Bypass via actor.name Display Name Spoofing

OpenClaw's Nextcloud Talk plugin versions prior to 2026.2.6 accept equality matching on the mutable actor.name display name field for allowlist validation, allowing attackers to bypass DM and room allowlists. An attacker can change their Nextcloud display name to match an allowlisted user ID and...

CVE-2026-28474

OpenClaw's Nextcloud Talk plugin versions prior to 2026.2.6 accept equality matching on the mutable actor.name display name field for allowlist validation, allowing attackers to bypass DM and room allowlists. An attacker can change their Nextcloud display name to match an allowlisted user ID and...

EUVD-2026-9920

OpenClaw's Nextcloud Talk plugin versions prior to 2026.2.6 accept equality matching on the mutable actor.name display name field for allowlist validation, allowing attackers to bypass DM and room allowlists. An attacker can change their Nextcloud display name to match an allowlisted user ID and...

CVE-2026-28474 OpenClaw Nextcloud Talk < 2026.2.6 - Allowlist Bypass via actor.name Display Name Spoofing

OpenClaw's Nextcloud Talk plugin versions prior to 2026.2.6 accept equality matching on the mutable actor.name display name field for allowlist validation, allowing attackers to bypass DM and room allowlists. An attacker can change their Nextcloud display name to match an allowlisted user ID and...

CVE-2026-28474 OpenClaw Nextcloud Talk < 2026.2.6 - Allowlist Bypass via actor.name Display Name Spoofing

OpenClaw's Nextcloud Talk plugin versions prior to 2026.2.6 accept equality matching on the mutable actor.name display name field for allowlist validation, allowing attackers to bypass DM and room allowlists. An attacker can change their Nextcloud display name to match an allowlisted user ID and...

OpenClaw's Nextcloud Talk webhook replay could trigger duplicate inbound processing

Summary When Nextcloud Talk webhook signing was valid, replayed requests could be accepted without durable replay suppression, allowing duplicate inbound processing after replay-window expiry or process restart. Details OpenClaw's Nextcloud Talk webhook path verified HMACsecret, random + body but...

GHSA-R9Q5-C7QC-P26W OpenClaw's Nextcloud Talk webhook replay could trigger duplicate inbound processing

Summary When Nextcloud Talk webhook signing was valid, replayed requests could be accepted without durable replay suppression, allowing duplicate inbound processing after replay-window expiry or process restart. Details OpenClaw's Nextcloud Talk webhook path verified HMACsecret, random + body but...

PT-2026-26224

Summary When Nextcloud Talk webhook signing was valid, replayed requests could be accepted without durable replay suppression, allowing duplicate inbound processing after replay-window expiry or process restart. Details OpenClaw's Nextcloud Talk webhook path verified HMACsecret, random + body but...

User Impersonation

Overview @openclaw/nextcloud-talk is an OpenClaw Nextcloud Talk channel plugin Affected versions of this package are vulnerable to User Impersonation via the actor.name field in webhook payloads. An attacker can gain unauthorized access to direct messages or rooms by spoofing their display name t...

Nextcloud Talk allowlist bypass via actor.name display name spoofing

Summary In affected versions of the optional Nextcloud Talk plugin installed separately; not bundled with the core OpenClaw install, an untrusted webhook field actor.name, display name could be treated as an allowlist identifier. An attacker could change their Nextcloud display name to match an...