CVE-2026-100552

HIGHPre-NVD 8.88.8—
EchelonGraph scoreHIGH confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-09-26. A secondary CVSS source baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 8.8Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

OpenClaw (npm package 'openclaw') before 2026.8.1 does not correctly enforce per-chat tool policies for Codex app-server runtime tools. A conversation-level tools.allow rule filtered OpenClaw tools but did not restrict the shell, process, file, and patch tools owned by the Codex runtime. When a lower-trust conversation was assigned to a Codex runtime and restricted with a per-chat tool allowlist, a participant able to trigger that agent could still reach native command and file tools, bypassing the configured allowlist. The practical impact depends on the runtime's host permissions and sandbox configuration. The issue is fixed in 2026.8.1.

CVSS v3
8.8
EG Score
8.8HIGHhigh confidence
EG Risk
40
EG Risk 40/100CISA SSVC

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
Severity88% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.3%
EPSS %ILE
16th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

September 26, 2026

Last Modified

September 30, 2026

Advisory Details (2)

Auto-updated Sep 26, 2026
Patch available. Sources: github.
generic

OpenClaw before 2026.8.1 Policy Bypass via Native Tools | Advisories | VulnCheck

https://www.vulncheck.com/advisories/openclaw-before-2026.8.1-policy-bypass-via-native-tools
github Patch Available

Codex native tools could ignore per-chat policy · Advisory · openclaw/openclaw · GitHub

https://github.com/openclaw/openclaw/security/advisories/GHSA-wwcw-jfpp-gpxw

Vendor Advisories for CVE-2026-100552(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 30× in last 7d / 38× 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. 2026-10-04 04:16 UTCGHSA enrichment
  2. 2026-10-03 15:55 UTCEG score recompute
  3. 2026-10-03 15:55 UTCGHSA enrichment
  4. 2026-10-03 14:25 UTCEPSS rescore
  5. 2026-10-03 03:35 UTCEG score recompute
  6. 2026-10-03 03:35 UTCGHSA enrichment
  7. 2026-10-02 15:15 UTCGHSA enrichment
  8. 2026-10-02 02:54 UTCEG score recompute
  9. 2026-10-02 02:54 UTCGHSA enrichment
  10. 2026-10-01 19:49 UTCEPSS rescore
  11. 2026-10-01 14:32 UTCGHSA enrichment
  12. 2026-10-01 02:11 UTCEG score recompute
  13. 2026-10-01 02:11 UTCGHSA enrichment
  14. 2026-09-30 15:02 UTCEPSS rescore
  15. 2026-09-30 13:50 UTCGHSA enrichment
  16. 2026-09-30 01:30 UTCEG score recompute
  17. 2026-09-30 01:30 UTCGHSA enrichment
  18. 2026-09-30 00:37 UTCEG score recompute
  19. 2026-09-30 00:37 UTCGHSA enrichment
  20. 2026-09-29 16:14 UTCEG score recompute
  21. 2026-09-29 16:14 UTCGHSA enrichment
  22. 2026-09-29 15:20 UTCEPSS rescore
  23. 2026-09-29 03:53 UTCEG score recompute
  24. 2026-09-29 03:53 UTCGHSA enrichment
  25. 2026-09-28 15:32 UTCEG score recompute
Show 13 more
  1. 2026-09-28 15:32 UTCGHSA enrichment
  2. 2026-09-28 13:50 UTCEPSS rescore
  3. 2026-09-28 04:48 UTCGHSA enrichment
  4. 2026-09-27 16:27 UTCEG score recompute
  5. 2026-09-27 16:27 UTCGHSA enrichment
  6. 2026-09-27 04:07 UTCEG score recompute
  7. 2026-09-27 04:07 UTCGHSA enrichment
  8. 2026-09-26 15:58 UTCEPSS rescore
  9. 2026-09-26 15:46 UTCEG score recompute
  10. 2026-09-26 15:46 UTCGHSA enrichment
  11. 2026-09-26 03:26 UTCEG score recompute
  12. 2026-09-26 02:32 UTCEG score recompute
  13. 2026-09-26 02:29 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-100552?
CVE-2026-100552 is a high vulnerability published on September 26, 2026. OpenClaw (npm package 'openclaw') before 2026.8.1 does not correctly enforce per-chat tool policies for Codex app-server runtime tools. A conversation-level tools.allow rule filtered OpenClaw tools but did not restrict the shell, process, file, and patch tools owned by the Codex runtime. When a…
When was CVE-2026-100552 disclosed?
CVE-2026-100552 was first published on September 26, 2026, with the most recent update on September 30, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-100552 actively exploited?
CVE-2026-100552 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (16th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-100552?
CVE-2026-100552 has a CVSS base score of 8.8 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-100552?
A fix for CVE-2026-100552 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-100552 are linked in the Vendor Advisories panel on this page.

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