CVE-2026-28468

highpriority · track · 31OT risk · elevatedEPSS 0.001 · 4 %ileDEEUUS
grimoire priorityP2 · Scheduled
Exploitable?
—
no known exploitation
Likely / severe?
0.15% (4th) EPSS
CVSS 7.7 · high
Is it mine?
5 products
Check your exposure
Who says so?
5 sources
cnnvd · enisa_euvd · cert_bund · nvd

EPSS · scored 2026-10-27

OpenClaw versions 2026.1.29-beta.1 prior to 2026.2.14 contain a vulnerability in the sandbox browser bridge server in which it accepts requests without requiring gateway authentication, allowing local attackers to access browser control endpoints. A local attacker can enumerate tabs, retrieve WebSocket URLs, execute JavaScript, and exfiltrate cookies and session data from authenticated browser contexts.

01

cvss

Technical severity, 0–10. One row per scoring source.

8.5
010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6–8.5

v3.17.7highCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Nprimary · NVD / NIST USexploitability 2.5 · impact 5.2
v3.17.7highCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Nsecondary · disclosure@vulncheck.comexploitability 2.5 · impact 5.2
v3.17.1highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Nsecondary · OSV
v4.08.5highCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:Nsecondary · ENISA EU
v4.08.5highCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/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:Xsecondary · disclosure@vulncheck.com
v4.06mediumCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/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:Xsecondary · CVSS-BT (t0sche)
02

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS
03

weaknesses

The CWE weakness classes this flaw belongs to.

04

affected products (5)

Products and version ranges known to be affected.

05

advisories (2)

Vendor and ecosystem advisories describing this.

  • WID-SEC-W-2026-0424OpenClaw: Mehrere SchwachstellenDeutsch2026-02-15csaf · cert_bundDE

    Ein Angreifer kann diese Schwachstellen in OpenClaw ausnutzen, um beliebigen Programmcode auszuführen, sich erhöhte Berechtigungen zu verschaffen, Sicherheitsmaßnahmen zu umgehen, Daten zu manipulieren, einen Denial-of-Service-Zustand herbeizuführen, vertrauliche Informationen offenzulegen oder andere, nicht näher bezeichnete Angriffe durchzuführen.

  • GHSA-h9g4-589h-68xvOpenClaw has an authentication bypass in sandbox browser bridge server2026-02-18ghsa · osvUS

    ## Summary openclaw could start the sandbox browser bridge server without authentication. When the sandboxed browser is enabled, openclaw runs a local (loopback) HTTP bridge that exposes browser control endpoints (for example `/profiles`, `/tabs`, `/tabs/open`, `/agent/*`). Due to missing auth wiring in the sandbox initialization path, that bridge server accepted requests without requiring gateway auth. ## Impact A local attacker (any process on the same machine) could access the bridge server port and: - enumerate open tabs and retrieve CDP WebSocket URLs - open/close/navigate tabs - execute JavaScript in page contexts via CDP - exfiltrate cookies/session data and page contents from authenticated sessions This is a localhost-only exposure (CVSS AV:L), but provides full browser-session compromise for sandboxed browser usage. ## Affected Versions - Introduced in: `2026.1.29-beta.1` (first npm release that shipped the sandbox browser bridge) - Affected range: `>=2026.1.29-beta.1 <2026.2.14` ## Patched Versions - `2026.2.14` ## Mitigation - Upgrade to `2026.2.14` (recommended). - Or disable the sandboxed browser (`agents.defaults.sandbox.browser.enabled=false`). ## Fix Details - The sandbox browser bridge server now always requires auth and enforces the same gateway browser control auth (token/password) that loopback browser clients already use. - Additional hardening: bridge server refuses non-loopback binds; local helper servers are bound to loopback. - Added regression tests (including unit coverage for per-port bridge auth fallback). Fix commits: - openclaw/openclaw@4711a943e30bc58016247152ba06472dab09d0b0 - openclaw/openclaw@6dd6bce997c48752134f2d6ed89b27de01ced7e3 - openclaw/openclaw@cd84885a4ac78eadb7bf321aae98db9519426d67 ## Credits Thanks to Adnan Jakati (@jackhax) of [Praetorian](https://www.praetorian.com/) for reporting this issue.

06

also known as (3)

Other names and identifiers for this entity.

07

sources

Which sources assert this record, and when.

published 2026-03-05modified 2026-06-17
08

references (16)

External citations — patches, advisories, analysis.

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