OpenClaw before 2026.4.22 allows workspace dotenv files to override connector endpoint hosts for Matrix, Mattermost, IRC, and Synology connectors. Attackers with workspace access can redirect runtime traffic to malicious endpoints by setting endpoint variables in dotenv files.
CVE-2026-45003
This medium-severity CVE scores 5.0 under NVD CVSS v3. EPSS exploit probability: 0.1%, top 99% 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
- 5.0
- EG Score
- 5.0(medium)
- EPSS
- 1.3%
- KEV
- Not listed
Published
May 11, 2026
Last Modified
May 13, 2026
Advisory Details (3)
Auto-updated Jun 27, 2026OpenClaw < 2026.4.22 - Connector Endpoint Host Override via Workspace dotenv Files | Advisories | VulnCheck
https://www.vulncheck.com/advisories/openclaw-connector-endpoint-host-override-via-workspace-dotenv-filesWorkspace dotenv files cannot override connector endpoint hosts · Advisory · openclaw/openclaw · GitHub
https://github.com/openclaw/openclaw/security/advisories/GHSA-55cf-xx38-4p9pcommit 0623079e98ab (openclaw/openclaw)
Fix landed in openclaw/openclaw commit 0623079e98ab — awaiting tagged release
https://github.com/openclaw/openclaw/commit/0623079e98abf7202591f1b04a89755eb7ec9272Vendor Advisories for CVE-2026-45003(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 / 31× 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
- 2026-07-09 19:10 UTCEPSS rescore
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- 2026-06-28 14:07 UTCEPSS rescore
- 2026-06-28 04:56 UTCEPSS rescore
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- 2026-06-27 09:43 UTCEG score recompute
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- 2026-06-26 04:50 UTCEG score recompute
- 2026-06-23 21:33 UTCEPSS rescore
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- 2026-06-17 17:53 UTCEPSS rescore
- 2026-06-16 07:19 UTCEG score recompute
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- 2026-06-15 17:49 UTCEPSS rescore
- 2026-06-14 10:05 UTCEG score recompute
- 2026-06-13 08:06 UTCEG score recompute
- 2026-06-12 23:12 UTCEPSS rescore
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- 2026-06-12 02:48 UTCEG score recompute
- 2026-06-11 14:00 UTCEPSS rescore
- 2026-06-11 00:49 UTCEG score recompute
- 2026-06-10 22:18 UTCEPSS rescore
- 2026-06-09 22:50 UTCEG score recompute
- 2026-06-08 20:51 UTCEG score recompute
- 2026-06-08 14:17 UTCEPSS rescore
- 2026-06-08 14:17 UTCEPSS rescore
- 2026-06-07 18:52 UTCEG score recompute
- 2026-06-07 15:25 UTCEPSS rescore
- 2026-06-07 15:25 UTCEPSS rescore
- 2026-06-06 16:53 UTCEG score recompute
- 2026-06-06 13:47 UTCEPSS rescore
- 2026-06-06 13:47 UTCEPSS rescore
- 2026-06-05 22:47 UTCEPSS rescore
- 2026-06-05 14:54 UTCEG score recompute
- 2026-06-05 06:10 UTCEPSS rescore
- 2026-06-05 06:10 UTCEPSS rescore
- 2026-06-04 13:12 UTCEPSS rescore
- 2026-06-04 13:12 UTCEPSS rescore
- 2026-06-04 12:56 UTCEG score recompute
- 2026-06-03 10:57 UTCEG score recompute
- 2026-06-02 20:13 UTCEPSS rescore
- 2026-06-02 08:58 UTCEG score recompute
- 2026-06-01 13:52 UTCEPSS rescore
- 2026-06-01 13:52 UTCEPSS rescore
- 2026-06-01 06:59 UTCEG score recompute
- 2026-05-31 22:30 UTCEPSS rescore
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- 2026-05-29 13:44 UTCEPSS rescore
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- 2026-05-27 13:40 UTCEPSS rescore
- 2026-05-27 13:40 UTCEPSS rescore
- 2026-05-26 13:44 UTCEPSS rescore
- 2026-05-26 07:18 UTCEPSS rescore
- 2026-05-23 00:07 UTCEG score recompute
- 2026-05-21 22:43 UTCEPSS rescore
- 2026-05-20 22:38 UTCEPSS rescore
- 2026-05-20 13:13 UTCEG score recompute
- 2026-05-20 11:22 UTCEPSS rescore
Frequently asked(5)
What is CVE-2026-45003?
When was CVE-2026-45003 disclosed?
Is CVE-2026-45003 actively exploited?
What is the CVSS score of CVE-2026-45003?
How do I remediate CVE-2026-45003?
Dependency Blast Radius
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