CVE-2026-43582

Name: CVE-2026-43582
Creator: NVD / NIST
Published: 2026-05-06T20:16:34.05+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.9/10EPSS 0.20%

Last modified Jun 17, 2026

CVE-2026-43582 is a medium-severity vulnerability rated 4.9/10 on the CVSS scale. OpenClaw before 2026.4.10 contains a server-side request forgery vulnerability in browser navigation policy that allows attackers to bypass hostname validation through DNS rebinding attacks. Attackers can exploit inconsistent hostname resolution between validation and actual network requests to pivot to internal resources via unallowlisted hostname URLs.. EPSS estimates a 0.20% chance of exploitation in the next 30 days.

Description

OpenClaw before 2026.4.10 contains a server-side request forgery vulnerability in browser navigation policy that allows attackers to bypass hostname validation through DNS rebinding attacks. Attackers can exploit inconsistent hostname resolution between validation and actual network requests to pivot to internal resources via unallowlisted hostname URLs.

Metrics

CVSS 3.1

6.3/10

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N

CVSS 4.0

4.9/10

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/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 Probability

0.20%

9.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-367

Affected Software

Vendor	Product	Versions
Openclaw	Openclaw	< 2026.4.10

References

https://github.com/openclaw/openclaw/commit/121c452d666d4749744dc2089287d0227aae2ed3Patch
https://github.com/openclaw/openclaw/security/advisories/GHSA-xq94-r468-qwgjMitigation, Vendor Advisory
https://www.vulncheck.com/advisories/openclaw-dns-rebinding-ssrf-via-hostname-validation-bypassThird Party Advisory

Timeline

Published: May 6, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-43582?

How severe is CVE-2026-43582?

CVE-2026-43582 has a CVSS score of 4.9/10 (MEDIUM severity). The EPSS model estimates a 0.20% probability of exploitation in the next 30 days.

How do I fix CVE-2026-43582?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-43582?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST