CVE-2026-28449
OpenClaw's Nextcloud Talk webhook replay could trigger duplicate inbound processing
描述
### 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 `HMAC(secret, random + body)` but previously lacked durable replay state tied to webhook events. This allowed replay of a previously valid signed request in some operational conditions. The fix on `main` adds: - persistent per-account replay dedupe for Nextcloud Talk webhook events, - replay checks before webhook side effects (`onMessage`), - backend-origin validation against configured account base URL (when configured). ### Impact A captured valid signed webhook request could be replayed to trigger duplicate inbound handling. This is an integrity/availability issue (duplicate actions/noise), scoped to deployments using Nextcloud Talk webhook integration. ### Affected Packages / Versions - Package: `openclaw` (npm) - Affected: `<= 2026.2.24` - Patched in release: `2026.2.25` ### Fix Commit(s) - `d512163d686ad6741783e7119ddb3437f493dbbc` ### Release Process Note `patched_versions` is pre-set to the release (`2026.2.25`) so once npm release `2026.2.25` is published, advisory is now published. OpenClaw thanks @aristorechina for reporting.
如何修補 CVE-2026-28449
要修補 CVE-2026-28449,請將受影響套件升級到下列已修補版本。
- —升級至 2026.2.25 或更新版本
CVE-2026-28449 正在被利用嗎?
低 — EPSS 為 0.3%,目前沒有觀察到大規模利用活動。
受影響套件(1)
- from 0, < 2026.2.25
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N |