CVE-2026-100535

HIGHPre-NVD 7.57.5—
EchelonGraph scoreHIGH confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-09-26. A secondary CVSS source baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
7.5EG
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: 7.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

OpenClaw (npm package 'openclaw') versions >= 2026.4.5 and < 2026.8.1 can lose the originating requester's restrictions and untrusted provenance when session-derived text is persisted to session memory. In deployments where session-memory capture and dreaming are enabled, a restricted external sender whose messages are admitted with limited tools can persist instructions that are later supplied to an unattended background (dreaming) agent holding broader file and command capabilities, allowing actions beyond the authority of the original turn and affecting files, commands, or services available to that agent. Exploitation requires the content to be captured, selected for later processing, and followed by the model. The issue is fixed in 2026.8.1.

CVSS v3
7.5
EG Score
7.5HIGHhigh confidence
EG Risk
38
EG Risk 38/100CISA 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
Severity75% × 45%
Exploitation0% × 40%
Automatability30% × 15%
CISA SSVC: Track at low or medium mission impact; Track or Attend at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.3%
EPSS %ILE
16th
KEV
Not listed

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

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (no KEV listing, exploit record or EPSS ≥ 50%) · Automatable unknown (not published for this CVE) · Technical impact partial (CVSS below 9.0). 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 28, 2026

Advisory Details (2)

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

OpenClaw before 2026.8.1 Privilege Escalation via Session Memory | Advisories | VulnCheck

https://www.vulncheck.com/advisories/openclaw-before-2026.8.1-privilege-escalation-via-session-memory
github Patch Available

Dreaming could widen restricted sender authority · Advisory · openclaw/openclaw · GitHub

https://github.com/openclaw/openclaw/security/advisories/GHSA-62qm-6fjj-6g23

Vendor Advisories for CVE-2026-100535(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 / 33× 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 09:48 UTCGHSA enrichment
  2. 2026-10-03 21:15 UTCEG score recompute
  3. 2026-10-03 21:15 UTCGHSA enrichment
  4. 2026-10-03 14:25 UTCEPSS rescore
  5. 2026-10-03 08:42 UTCGHSA enrichment
  6. 2026-10-02 20:09 UTCEG score recompute
  7. 2026-10-02 20:08 UTCGHSA enrichment
  8. 2026-10-02 07:35 UTCEG score recompute
  9. 2026-10-02 07:35 UTCGHSA enrichment
  10. 2026-10-01 19:49 UTCEPSS rescore
  11. 2026-10-01 19:03 UTCGHSA enrichment
  12. 2026-10-01 06:30 UTCGHSA enrichment
  13. 2026-09-30 17:58 UTCEG score recompute
  14. 2026-09-30 17:58 UTCGHSA enrichment
  15. 2026-09-30 15:02 UTCEPSS rescore
  16. 2026-09-30 05:20 UTCGHSA enrichment
  17. 2026-09-29 16:46 UTCEG score recompute
  18. 2026-09-29 16:46 UTCGHSA enrichment
  19. 2026-09-29 15:20 UTCEPSS rescore
  20. 2026-09-29 04:04 UTCEG score recompute
  21. 2026-09-29 04:04 UTCGHSA enrichment
  22. 2026-09-28 15:32 UTCGHSA enrichment
  23. 2026-09-28 05:43 UTCGHSA enrichment
  24. 2026-09-27 17:11 UTCEG score recompute
  25. 2026-09-27 17:11 UTCGHSA enrichment
Show 8 more
  1. 2026-09-27 04:39 UTCGHSA enrichment
  2. 2026-09-26 16:06 UTCEG score recompute
  3. 2026-09-26 16:05 UTCGHSA enrichment
  4. 2026-09-26 15:58 UTCEPSS rescore
  5. 2026-09-26 03:31 UTCEG score recompute
  6. 2026-09-26 03:31 UTCGHSA enrichment
  7. 2026-09-26 02:34 UTCEG score recompute
  8. 2026-09-26 02:29 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-100535?
CVE-2026-100535 is a high vulnerability published on September 26, 2026. OpenClaw (npm package 'openclaw') versions >= 2026.4.5 and < 2026.8.1 can lose the originating requester's restrictions and untrusted provenance when session-derived text is persisted to session memory. In deployments where session-memory capture and dreaming are enabled, a restricted external…
When was CVE-2026-100535 disclosed?
CVE-2026-100535 was first published on September 26, 2026, with the most recent update on September 28, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-100535 actively exploited?
CVE-2026-100535 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-2026-100535?
CVE-2026-100535 has a CVSS base score of 7.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-100535?
A fix for CVE-2026-100535 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-100535 are linked in the Vendor Advisories panel on this page.

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