CVE-2026-43582
OpenClaw: Browser SSRF hostname validation could be bypassed by DNS rebinding
Description
## Summary Browser SSRF hostname validation could be bypassed by DNS rebinding. ## Affected Packages / Versions - Package: `openclaw` - Ecosystem: npm - Affected versions: `< 2026.4.10` - Patched versions: `>= 2026.4.10` ## Impact Browser navigation policy could validate a hostname/IP resolution that differed from the address Chromium ultimately used, allowing DNS rebinding style SSRF pivots. ## Technical Details The fix tightens strict browser hostname navigation so unallowlisted hostname URLs fail closed under restrictive policy. ## Fix The issue was fixed in #64367. The first stable tag containing the fix is `v2026.4.10`, and `[email protected]` includes the fix. ## Fix Commit(s) - `121c452d666d4749744dc2089287d0227aae2ed3` - PR: #64367 ## Release Process Note Users should upgrade to `openclaw` 2026.4.10 or newer. The latest npm release, `2026.4.14`, already includes the fix. ## Credits Thanks to @zsxsoft, with sponsorship from @KeenSecurityLab and @qclawer for reporting this issue.
How to fix CVE-2026-43582
To remediate CVE-2026-43582, upgrade the affected package to a fixed version below.
- —upgrade to 2026.4.10 or later
Is CVE-2026-43582 being exploited?
Low — EPSS is 0.0%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 2026.4.10
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:N/SA:N |
| osv | CVSS 3.1 | MEDIUM6.3 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N |