CVE-2026-6011: OpenClaw assertPublicHostname web-fetch.ts server-side request forgery
- Is it exploited?
Not on CISA's list. CISA has not added it to the Known Exploited Vulnerabilities catalog as of . If CISA adds it, this page shows it as known exploited.
- How likely is exploitation in the next 30 days?
- 0.4%
Down from 0.6% on .
EPSS score, percentile 36.3 of all scored records. A probability estimated by FIRST, not a report of exploitation.
CISA's SSVC assessment in the CVE record lists exploitation as poc.
- How severe?
- 6.3 Medium
CVSS v4.0 base score, given by the CNA
- What should I do?
CISA has set no required action, because the vulnerability is not in KEV.
- Which versions are affected?
Affected
- 2026.1.0
- 2026.1.1
- 2026.1.2
- 2026.1.3
- 2026.1.4
- 2026.1.5
and 6 more in the table below
Source: CISA KEV 2026.10.29, as of ; FIRST EPSS, as of ; CVE List, as of . About the data.
What to do
Advisories and patches
This summary is based on the CVE record as of . Check the vendor's advisory before you act: affected versions and fixes can change.
Affected products and versions
As listed in the CVE record.
| Status | Versions |
|---|---|
| Affected | 2026.1.0 |
| Affected | 2026.1.1 |
| Affected | 2026.1.2 |
| Affected | 2026.1.3 |
| Affected | 2026.1.4 |
| Affected | 2026.1.5 |
| Affected | 2026.1.6 |
| Affected | 2026.1.7 |
| Affected | 2026.1.8 |
| Affected | 2026.1.9 |
| Affected | 2026.1.10 |
| Affected | 2026.1.11 |
And 16 more version entries in the CVE record.
Versions the record lists as unaffected: 2026.1.29.
Source: CVE List, as of . About the data.
About this vulnerability
A weakness has been identified in OpenClaw up to 2026.1.26. Affected by this issue is some unknown functionality of the file src/agents/tools/web-fetch.ts of the component assertPublicHostname Handler. Executing a manipulation can lead to server-side request forgery. The attack can be executed remotely. This attack is characterized by high complexity. The exploitation is known to be difficult. Th…
Summary: CVE record, as of .
- CISA has not added CVE-2026-6011 to its Known Exploited Vulnerabilities (KEV) catalog, as of 29 Oct 2026.
- The CVE record was published on 10 Apr 2026.
- The CVE record carries a CVSS v4.0 base score of 6.3 (Medium), given by its CNA.
- FIRST's EPSS model puts the probability of exploitation in the next 30 days at 0.4% (percentile 36.3), as of 29 Oct 2026. EPSS is a statistical estimate, not a report of exploitation.
- CISA's SSVC assessment in the CVE record: exploitation poc, automatable no, technical impact partial.
- The credits in the CVE record name ZAST.AI as finder.
Source: CISA KEV 2026.10.29, as of ; CVE List, as of ; FIRST EPSS, as of . About the data.
Description
OpenClaw assertPublicHostname web-fetch.ts server-side request forgery
A weakness has been identified in OpenClaw up to 2026.1.26. Affected by this issue is some unknown functionality of the file src/agents/tools/web-fetch.ts of the component assertPublicHostname Handler. Executing a manipulation can lead to server-side request forgery. The attack can be executed remotely. This attack is characterized by high complexity. The exploitation is known to be difficult. The exploit has been made available to the public and could be used for attacks. Upgrading to version 2026.1.29 can resolve this issue. This patch is called b623557a2ec7e271bda003eb3ac33fbb2e218505. Upgrading the affected component is advised.
Source: CVE List, as of . About the data.
Weakness
CWE-918
CWE and CAPEC are maintained by MITRE; the entries are those named in the CVE record.
Timeline
| Date | Event |
|---|---|
| CVE record published |