CVE-2026-90818

MEDIUMPre-NVD 4.34.3—
EchelonGraph scoreHIGH confidence

Score 4.3 from GitHub Security Advisory (severity: LOW) published 2026-09-14. a secondary CVSS source baseline 4.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 5 sources updated this weekElevated
4.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 4.3Exploit: Elevated riskExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

A security flaw has been discovered in netease-youdao LobsterAI 2026.6.15/2026.8.28/2026.9.3/2026.9.4. Impacted is the function OpenClawConfigSync.buildBrowserConfig of the file src/main/libs/openclawConfigSync.ts of the component Browser Network Configuration. The manipulation results in server-side request forgery. It is possible to launch the attack remotely. The exploit has been released to the public and may be used for attacks. The reported GitHub issue was closed automatically due to inactivity.

CVSS v3
4.3
EG Score
4.3(high)
EG Risk
35(Track)
EG Risk 35/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity43% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
42%
KEV
Not listed

Published

September 14, 2026

Last Modified

September 16, 2026

Advisory Details (3)

Auto-updated Sep 14, 2026
No patch confirmed yet.
generic

GitHub - netease-youdao/LobsterAI: Open-source, desktop-grade AI agent that gets real work done — data analysis, slides, docs, video & web research. Built on OpenClaw; runs tools on your real desktop and takes commands from your phone via WeChat, Feishu, DingTalk & Telegram. · GitHub

https://github.com/netease-youdao/LobsterAI/
generic

PoC: poc_task_subagent_permission.ts for Letta Code Task subagent permission bypass · GitHub

https://gist.github.com/YLChen-007/e5f88777e7c50549fd98b23b2988f78d
generic

[Security] LobsterAI restores private-network browser access by default and weakens the bundled OpenClaw SSRF guard · Issue #2181 · netease-youdao/LobsterAI · GitHub

https://github.com/netease-youdao/LobsterAI/issues/2181

Vendor Advisories for CVE-2026-90818(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 25× in last 7d / 25× 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.

  1. 2026-09-20 20:16 UTCEPSS rescore
  2. 2026-09-20 15:28 UTCGHSA enrichment
  3. 2026-09-19 16:50 UTCEG score recompute
  4. 2026-09-19 16:49 UTCGHSA enrichment
  5. 2026-09-18 19:28 UTCEPSS rescore
  6. 2026-09-18 18:10 UTCEG score recompute
  7. 2026-09-18 18:10 UTCGHSA enrichment
  8. 2026-09-17 19:32 UTCEPSS rescore
  9. 2026-09-17 19:25 UTCGHSA enrichment
  10. 2026-09-16 17:51 UTCEG score recompute
  11. 2026-09-16 17:51 UTCGHSA enrichment
  12. 2026-09-16 17:21 UTCNVD updateCVSS v4 → 2.1
  13. 2026-09-16 16:55 UTCEG score recompute
  14. 2026-09-16 16:55 UTCGHSA enrichment
  15. 2026-09-16 16:34 UTCMITRE cvelistV5CVSS v4 → 5.3
  16. 2026-09-16 14:09 UTCEPSS rescore
  17. 2026-09-16 13:50 UTCEG score recompute
  18. 2026-09-16 13:49 UTCGHSA enrichment
  19. 2026-09-16 05:15 UTCEPSS rescore
  20. 2026-09-15 15:01 UTCGHSA enrichment
  21. 2026-09-14 21:33 UTCEG score recompute
  22. 2026-09-14 21:33 UTCGHSA enrichment
  23. 2026-09-14 21:22 UTCNVD updateCVSS v4 → 2.1
  24. 2026-09-14 20:26 UTCEG score recompute
  25. 2026-09-14 20:24 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-90818?
CVE-2026-90818 is a medium vulnerability published on September 14, 2026. A security flaw has been discovered in netease-youdao LobsterAI 2026.6.15/2026.8.28/2026.9.3/2026.9.4. Impacted is the function OpenClawConfigSync.buildBrowserConfig of the file src/main/libs/openclawConfigSync.ts of the component Browser Network Configuration. The manipulation results in…
When was CVE-2026-90818 disclosed?
CVE-2026-90818 was first published in the National Vulnerability Database on September 14, 2026, with the most recent update on September 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-90818 actively exploited?
CVE-2026-90818 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 57.8% of all scored CVEs.
What is the CVSS score of CVE-2026-90818?
CVE-2026-90818 has a CVSS v3 base score of 4.3 (NVD).
How do I remediate CVE-2026-90818?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-90818, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-90818

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