Cyber Resilience

CVE-2026-28467

SSRF in Openclaw ≤ 2026.2.2

Public PoCSSRF
Published
05 March 2026
Modified
09 March 2026
Patch / advisory
View advisory
CVSS Score v4 6.3
Click a component to see what it means
Raw vectorCVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:L/SI:L/SA:L/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
EPSS Score 0.0040 33th percentile
Risk Priority 31 floored blend · peak EPSS

Summary

CVE-2026-28467 is a medium-severity SSRF (CWE-918) vulnerability in Openclaw Openclaw. Its CVSS base score is 6.3 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 33th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

The strongest mitigations our analysis identified map to AC-4 (Information Flow Enforcement) and SI-10 (Information Input Validation) — see the control section below for these in your framework.

Deeper analysis AI-assisted summary

Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.

CVE-2026-28467 is a server-side request forgery (SSRF) vulnerability, classified under CWE-918, affecting OpenClaw versions prior to 2026.2.2. The flaw resides in the attachment and media URL hydration functionality, which improperly handles user-supplied URLs, enabling remote attackers to force the server to fetch arbitrary HTTP(S) resources. The vulnerability carries a CVSS v3.1 base score of 6.5 (AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L), indicating medium severity with network accessibility but high attack complexity and changed scope.

Remote attackers can exploit this vulnerability if they can influence media URLs through model-controlled mechanisms such as sendAttachment or auto-reply features. Successful exploitation allows attackers to trigger SSRF requests to internal resources, potentially accessing metadata services or other localhost endpoints, and exfiltrate the fetched response bytes by packaging them as outbound attachments.

Mitigation is available via patches in OpenClaw commits 81c68f582d4a9a20d9cca9f367d2da9edc5a65ae and 9bd64c8a1f91dda602afc1d5246a2ff2be164647, with administrators advised to upgrade to version 2026.2.2 or later. Additional details are provided in the GitHub security advisory GHSA-wfp2-v9c7-fh79 and the VulnCheck advisory on OpenClaw SSRF via attachment media URL hydration.

OWASP Top 10 for Web (2025)

A01:2025 Broken Access Control

EU & UK References

Vulnerability Data

OpenClaw versions prior to 2026.2.2 contain a server-side request forgery vulnerability in attachment and media URL hydration that allows remote attackers to fetch arbitrary HTTP(S) URLs. Attackers who can influence media URLs through model-controlled sendAttachment or auto-reply mechanisms can trigger…

more

SSRF to internal resources and exfiltrate fetched response bytes as outbound attachments.

CWE(s)
CWE-918

Related Threats

MITRE ATT&CK Enterprise Techniques

T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2026-22181Same product: Openclaw Openclaw
CVE-2026-44116Same product: Openclaw Openclaw
CVE-2026-32037Same product: Openclaw Openclaw
CVE-2026-53827Same product: Openclaw Openclaw
CVE-2026-41914Same product: Openclaw Openclaw
CVE-2026-41302Same product: Openclaw Openclaw
CVE-2026-44117Same product: Openclaw Openclaw
CVE-2026-62216Same product: Openclaw Openclaw
CVE-2026-43526Same product: Openclaw Openclaw
CVE-2026-62227Same product: Openclaw Openclaw

Affected Assets

openclaw
openclaw
≤ 2026.2.2

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

—

Detect
Catch it (NIST detect / respond)

—

Harden
Shrink the surface (DISA STIG)

—

Validate
Prove the fix (OWASP ASVS)
  • V1.3.6
  • V1.5.3
  • V5.3.2
  • V10.4.7

Mitigating Controls (NIST 800-53 r5) AI

AC-4 Information Flow Enforcement good match

Information flow enforcement can restrict which destinations the server is allowed to contact on behalf of users.

SI-10 Information Input Validation good match

Input validation directly stops untrusted URLs from being accepted and fetched without destination checks.

SC-7 Boundary Protection partial match

Boundary protection limits the network reach of server-initiated requests even if SSRF occurs.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match
prevents

Secure development practices directly include input validation and destination allow-listing that prevent SSRF.

DE.CM-09 partial match
prevents

Runtime monitoring of web applications and services can detect anomalous outbound requests indicative of SSRF.

ID.RA-01 partial match
prevents

Vulnerability identification processes can discover and record SSRF flaws in web applications.

PR.IR-01 partial match
prevents

Network segmentation and egress controls can limit the damage from successful SSRF requests.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

A.5.7 Threat intelligence partial match
prevents

Operational threat data describing SSRF campaigns can be used to tighten outbound-request allow-lists and detection rules before attackers exploit them.

References