CVE-2026-53826

Q: How do I fix CVE-2026-53826?

Upgrade openclaw to 2026.4.26 or later.

Q: Is CVE-2026-53826 being actively exploited?

Not that we know of. CVE-2026-53826 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.19% is the estimated probability that it will be exploited in the next 30 days. That is higher than 8% of all scored CVEs.

Q: How severe is CVE-2026-53826?

CVE-2026-53826 has a CVSS v3 base score of 4.3, rated medium. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

Q: What does CVE-2026-53826 affect?

Published advisories record a fix for openclaw (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

MEDIUM

4.3

CVSS v3

NVD

Description

OpenClaw before 2026.4.26 contains an information disclosure vulnerability in sandboxed session spawning that exposes the real workspace path to child prompts. Attackers can exploit this by spawning child sessions from sandboxed parents to reveal host workspace location or related memory context to child models.

CWE-668

How to fix

Remediation Available

openclawNVD

Affected:< 2026.4.26Fixed in:2026.4.26CVE-2026-53826derived from NVD

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityNone

AvailabilityNone

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

Exploit Intelligence

0.19%probability of exploitation in 30 days

8thpercentile

Low risk: more likely to be exploited than 8% of all known CVEs.

References

Vendor Advisory1

github.com

Third-Party Advisory1

vulncheck.com

Related Vulnerabilities

Other CWE-668 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2022-39952	Critical	9.8	100%	-	Fix
CVE-2017-16597	Critical	9.8	57%	-	-
CVE-2017-16603	High	8.8	54%	-	-
CVE-2024-25153	Critical	9.8	42%	-	Fix
CVE-2022-25236	Critical	9.8	36%	-	Fix
CVE-2017-0215	Medium	5.3	36%	-	-

Common questions

How do I fix CVE-2026-53826?

Upgrade openclaw to 2026.4.26 or later.

Is CVE-2026-53826 being actively exploited?

Not that we know of. CVE-2026-53826 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.19% is the estimated probability that it will be exploited in the next 30 days. That is higher than 8% of all scored CVEs.

How severe is CVE-2026-53826?

CVE-2026-53826 has a CVSS v3 base score of 4.3, rated medium. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2026-53826 affect?

Published advisories record a fix for openclaw (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-07-23.