CVE-2026-35670 json
OpenClaw < 2026.3.22 - Webhook Reply Rebinding via Username Resolution in Synology Chat
published 2026-03-26 7 mo ago modified 2026-06-23 4 mo ago also GHSA-wv46-v6xc-2qhf , EUVD-2026-21486
- cvss
- 5.9
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 15%
- public exploits
- 0
- none known
Summary
OpenClaw before 2026.3.22 contains a webhook reply delivery vulnerability that allows attackers to rebind chat replies to unintended users by exploiting mutable username matching instead of stable numeric user identifiers. Attackers can manipulate username changes to redirect webhook-triggered replies to different users, bypassing the intended recipient binding recorded in webhook events.
Patch / fix
- npm openclaw 2026.3.22
- OpenClaw OpenClaw 2026.3.22
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 6 mo ago
Exploit prediction
0.24% chance of exploitation in the next 30 days, higher than 15% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 6.0 | CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N |
| CNA | 3.1 | 5.9 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N |
| CNA | 4.0 | 6.0 | CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
| NVD | 3.1 | 8.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N |
| GitHub | 3.1 | 5.9 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| npm | openclaw | <2026.3.22 |
2026.3.22 |
Affected products
- OpenClaw OpenClaw
Classification
References
-
github.com
/openclaw/openclaw/commit/630f1479c44f78484dfa21bb407cbe6f171dac87
patch, web
-
github.com
/openclaw/openclaw/commit/7ade3553b74ee3f461c4acd216653d5ba411f455
patch, web
-
github.com
/openclaw/openclaw/security/advisories/GHSA-wv46-v6xc-2qhf
vendor-advisory, web
-
vulncheck.com
/advisories/openclaw-webhook-reply-rebinding-via-username-resolution-in-synology-chat
third-party-advisory, web
-
nvd.nist.gov
/vuln/detail/CVE-2026-35670
advisory
-
github.com
/openclaw/openclaw
package
Sources
- CVE List CVE-2026-35670
- GitHub Advisory GHSA-wv46-v6xc-2qhf
- NVD CVE-2026-35670
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.