OpenClaw before 2026.4.22 contains a security envelope constraint bypass vulnerability allowing restricted subagents to spawn ACP child sessions that fail to inherit depth, child-count limits, control scope, or target-agent restrictions. Attackers can exploit this by spawning child sessions that bypass subagent-only constraints, potentially escalating privileges or accessing restricted resources.
CVE-2026-44997
This medium-severity CVE scores 4.3 under NVD CVSS v3. EPSS exploit probability: 0.2%, top 87% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- Lower severity and no public exploit yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 4.3
- EG Score
- 4.3(medium)
- EPSS
- 12.6%
- KEV
- Not listed
Published
May 11, 2026
Last Modified
May 13, 2026
Advisory Details (3)
Auto-updated Jun 27, 2026OpenClaw < 2026.4.22 - Security Envelope Constraint Bypass in ACP Child Sessions | Advisories | VulnCheck
https://www.vulncheck.com/advisories/openclaw-security-envelope-constraint-bypass-in-acp-child-sessionsACP child sessions inherit subagent security envelope constraints · Advisory · openclaw/openclaw · GitHub
https://github.com/openclaw/openclaw/security/advisories/GHSA-q3jj-46pq-826rcommit 31160dc069b7 (openclaw/openclaw)
Fix landed in openclaw/openclaw commit 31160dc069b7 — awaiting tagged release
https://github.com/openclaw/openclaw/commit/31160dc069b7cc5d833b39c53736a41ad3befda2Vendor Advisories for CVE-2026-44997(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Affected Packages
(1 across 1 ecosystem)
npm(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| openclaw | — | 2026.4.22 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 6× in last 7d / 40× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-11 08:27 UTCEPSS rescore
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- 2026-06-28 09:29 UTCEG score recompute
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- 2026-06-16 07:19 UTCEG score recompute
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- 2026-06-10 03:56 UTCEG score recompute
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- 2026-05-23 00:07 UTCEG score recompute
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- 2026-05-20 13:13 UTCEG score recompute
- 2026-05-20 11:22 UTCEPSS rescore
Related CVEs(same CWE)
Same CWE
10 shownCWE-266
- CVE-2019-10940EG 9.9CRITICAL
- CVE-2019-25249EG 9.8CRITICAL
- CVE-2023-1174EG 9.8CRITICAL
- CVE-2022-4276NVD 6.3EG 9.8MEDIUM
- CVE-2022-4273NVD 7.3EG 9.8HIGH
- CVE-2022-4272NVD 6.3EG 9.8MEDIUM
- CVE-2022-4232NVD 4.7EG 9.8MEDIUM
- CVE-2022-3771NVD 6.3EG 9.8MEDIUM
- CVE-2022-3735NVD 6.3EG 9.8MEDIUM
- CVE-2022-3458NVD 6.3EG 9.8MEDIUM
Frequently asked(5)
What is CVE-2026-44997?
When was CVE-2026-44997 disclosed?
Is CVE-2026-44997 actively exploited?
What is the CVSS score of CVE-2026-44997?
How do I remediate CVE-2026-44997?
Dependency Blast Radius
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