How severe is CVE-2026-28363?

CVE-2026-28363 has a CVSS 3.x base score of 9.9, rated critical severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-28363 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (39th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-28363?

CVE-2026-28363 affects Openclaw. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-28363?

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

Does CVE-2026-28363 have an EU (EUVD) identifier?

Yes. CVE-2026-28363 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-8987.

When was CVE-2026-28363 published?

CVE-2026-28363 was published on 2026-02-27 and last updated on 2026-06-17.

CVE-2026-28363

CVE-2026-28363 is a critical-severity vulnerability in Openclaw with a CVSS 3.x base score of 9.9. 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-184.

Key facts

Severity: Critical (CVSS 3.x base score 9.9)
EPSS exploit prediction: 0% (39th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-8987
Weakness: CWE-184
Affected product: Openclaw
Published: 2026-02-27
Last modified: 2026-06-17

Description

In OpenClaw before 2026.2.23, tools.exec.safeBins validation for sort could be bypassed via GNU long-option abbreviations (such as --compress-prog) in allowlist mode, leading to approval-free execution paths that were intended to require approval. Only an exact string such as --compress-program was denied.

Frequently asked questions

What is CVE-2026-28363?: In OpenClaw before 2026.2.23, tools.exec.safeBins validation for sort could be bypassed via GNU long-option abbreviations (such as --compress-prog) in allowlist mode, leading to approval-free execution paths that were intended to require approval. Only an exact string such as --compress-program was denied.
How severe is CVE-2026-28363?: CVE-2026-28363 has a CVSS 3.x base score of 9.9, rated critical severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-28363 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (39th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-28363?: CVE-2026-28363 affects Openclaw. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-28363?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2026-28363 have an EU (EUVD) identifier?: Yes. CVE-2026-28363 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-8987.
When was CVE-2026-28363 published?: CVE-2026-28363 was published on 2026-02-27 and last updated on 2026-06-17.

References

https://github.com/openclaw/openclaw/security/advisories/GHSA-3c6h-g97w-fg78

Affected products (1)

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

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