How severe is CVE-2026-43526?

CVE-2026-43526 has a CVSS 3.x base score of 8.2, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity low, and availability none.

Is CVE-2026-43526 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (16th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-43526?

CVE-2026-43526 affects Openclaw. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-43526?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-43526 have an EU (EUVD) identifier?

Yes. CVE-2026-43526 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-27263.

When was CVE-2026-43526 published?

CVE-2026-43526 was published on 2026-05-05 and last updated on 2026-06-17.

CVE-2026-43526

CVE-2026-43526 is a high-severity vulnerability in Openclaw with a CVSS 3.x base score of 8.2. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-918.

Key facts

Severity: High (CVSS 3.x base score 8.2)
CVSS v4: 8.3
EPSS exploit prediction: 0% (16th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-27263
Weakness: CWE-918
Affected product: Openclaw
Published: 2026-05-05
Last modified: 2026-06-17

Description

OpenClaw before 2026.4.12 contains a server-side request forgery vulnerability in QQBot reply media URL handling that allows attackers to fetch arbitrary content. Attackers can exploit this by providing malicious media URLs that trigger SSRF requests, with fetched bytes subsequently re-uploaded through the channel.

Frequently asked questions

What is CVE-2026-43526?: OpenClaw before 2026.4.12 contains a server-side request forgery vulnerability in QQBot reply media URL handling that allows attackers to fetch arbitrary content. Attackers can exploit this by providing malicious media URLs that trigger SSRF requests, with fetched bytes subsequently re-uploaded through the channel.
How severe is CVE-2026-43526?: CVE-2026-43526 has a CVSS 3.x base score of 8.2, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity low, and availability none.
Is CVE-2026-43526 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (16th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-43526?: CVE-2026-43526 affects Openclaw. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-43526?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-43526 have an EU (EUVD) identifier?: Yes. CVE-2026-43526 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-27263.
When was CVE-2026-43526 published?: CVE-2026-43526 was published on 2026-05-05 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:*

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