CVE-2026-100574

OpenClaw before 2026.8.1 SSRF via Trusted-Host DNS

Published Sep 26, 2026 CVSS 4.0 · 8.2 High EPSS < 1% KEV · Not listed

Description

OpenClaw (npm package 'openclaw') before 2026.8.1 contains a server-side request forgery vulnerability in its trusted-host DNS checks. For fetches that use the trusted-host DNS recheck, a trusted hostname that resolves to an unspecified address (0.0.0.0 or ::) bypasses the SSRF destination validation. An attacker who can influence DNS for an allowed hostname can therefore cause a guarded fetch to reach a service bound only to loopback and disclose its response; the practical impact depends on the reachable service and the data it returns. Fixed in 2026.8.1.

Analysis

Technical impact

OpenClaw implements a trusted‑host DNS check when performing outgoing fetches. The check incorrectly accepts a hostname that resolves to 0.0.0.0 or ::, allowing a server‑side request forgery. When an attacker can influence the DNS record for an allowed hostname, the application can be forced to connect to a service bound only to the loopback interface and reveal its response. The practical impact depends on the internal service accessed and the data it returns, potentially exposing sensitive internal information or service functionality.

Affected Systems

The vulnerability affects the OpenClaw npm package (named "openclaw"). Versions earlier than 2026.8.1 are impacted. No other vendors or products are affected.

Risk and Exploitability

The CVSS score of 8.2 indicates a high severity issue. EPSS information is not available, and the vulnerability is not listed in CISA’s KEV catalog. The attack vector is a server‑side request forgery that requires the attacker to manipulate DNS entries for a hostname included in the package’s trusted‑host list. The exploitation succeeds only if the application performs a fetch with the trusted‑host DNS recheck enabled; therefore any deployment that accepts user‑controlled DNS or allows modification of the trusted‑host list is vulnerable.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

OpenClaw

unaffected

Version	Status	Constraints
`0`	affected	< 2026.8.1
`2026.8.1`	unaffected	—

No data.

Vendor Product Versions

Openclaw

Version	Status	Scheme	Platform
`[0,2026.8.1)`	affected	generic	—
`2026.8.1`	unaffected	semver	—

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

Upgrade the OpenClaw npm package to version 2026.8.1 or newer, which removes the vulnerable DNS handling code.
Add application‑level validation to reject fetch targets that resolve to 0.0.0.0, ::, or other loopback addresses and restrict outbound requests to a whitelist of approved public hosts.
Use firewalls or network isolation to block the application’s connections to loopback interfaces or internal services that should not be exposed to untrusted code paths.

Generated by OpenCVE AI on September 26, 2026 at 04:44 UTC.

Tracking

Advisories

No advisories available

Metrics

Attack Vector Network

Attack Complexity High

Privileges Required None

Attack Requirements Present

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity High

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact None

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.230% probability within 30 days)

Exploitation none

Automatable no

Technical Impact partial

References

Link	Providers
https://github.com/openclaw/openclaw/security/advisories/GHSA-72p2-79fg-pvph
https://www.vulncheck.com/advisories/openclaw-before-2026.8.1-ssrf-via-trusted-host-dns

History

Sep 29, 2026 5:30 PM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Sep 26, 2026 2:30 AM Description updated. Title updated. First appearance in the feed. Weaknesses updated. Affected versions updated. Affected vendors updated. Added references. Scoring metrics updated View changes

Type	Values Removed	Values Added
Description		OpenClaw (npm package 'openclaw') before 2026.8.1 contains a server-side request forgery vulnerability in its trusted-host DNS checks. For fetches that use the trusted-host DNS recheck, a trusted hostname that resolves to an unspecified address (0.0.0.0 or ::) bypasses the SSRF destination validation. An attacker who can influence DNS for an allowed hostname can therefore cause a guarded fetch to reach a service bound only to loopback and disclose its response; the practical impact depends on the reachable service and the data it returns. Fixed in 2026.8.1.
Title		OpenClaw before 2026.8.1 SSRF via Trusted-Host DNS
First Time appeared		Openclaw Openclaw openclaw
Weaknesses		CWE-918
CPEs		cpe:2.3:a:openclaw:openclaw::::::::
Vendors & Products		Openclaw Openclaw openclaw
References		https://github.com/openclaw/openclaw/security/advisories/GHSA-72p2-79fg-pvph https://www.vulncheck.com/advisories/openclaw-before-2026.8.1-ssrf-via-trusted-host-dns
Metrics		cvssV3_1 `{'score': 5.9, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N'}` cvssV4_0 `{'score': 8.2, 'vector': 'CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N'}`