CVE-2026-100682

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 weekElevated
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.6%CVSS: 8.8Exploit: Elevated riskExposed services: Not assessed

A fix is available — apply it.

Budibase Server before 3.45.0 contains an arbitrary file write vulnerability in the PWA icon upload endpoint that extracts user-supplied ZIP archives without proper symlink validation. Attackers with BUILDER role can craft a malicious ZIP with leaf symlink entries followed by duplicate file entries to write arbitrary files as root, enabling remote code execution.

CVSS v3
8.8
EG Score
8.8HIGHhigh confidence
EG Risk
56
EG Risk 56/100CISA 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%
Exploitation40% × 40%
Automatability0% × 15%
CISA SSVC: Track at low, Track* at medium and Attend at high mission impact.
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
0.6%
EPSS %ILE
45th
KEV
Not listed

CISA SSVCTrack at low, Track* at medium and Attend at high mission impact.

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

Exploitation public PoC (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
🔬 Proof of concept available. Patch available. Sources: github.
generic

Budibase Server before 3.45.0 Arbitrary File Write via ZIP Symlink | Advisories | VulnCheck

https://www.vulncheck.com/advisories/budibase-server-before-3.45.0-arbitrary-file-write-via-zip-symlink
github Patch Available🟡 PoC Available

Budibase arbitrary file write as root via ZIP symlink traversal · Advisory · Budibase/budibase · GitHub

https://github.com/Budibase/budibase/security/advisories/GHSA-37r6-5jxh-vm83

Vendor Advisories for CVE-2026-100682(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 29× in last 7d / 37× 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 23:21 UTCEPSS rescore
  2. 2026-10-04 15:18 UTCGHSA enrichment
  3. 2026-10-04 03:25 UTCGHSA enrichment
  4. 2026-10-03 15:35 UTCEG score recompute
  5. 2026-10-03 15:34 UTCGHSA enrichment
  6. 2026-10-03 14:25 UTCEPSS rescore
  7. 2026-10-03 03:43 UTCEG score recompute
  8. 2026-10-03 03:43 UTCGHSA enrichment
  9. 2026-10-02 15:50 UTCGHSA enrichment
  10. 2026-10-02 03:59 UTCEG score recompute
  11. 2026-10-02 03:59 UTCGHSA enrichment
  12. 2026-10-01 19:49 UTCEPSS rescore
  13. 2026-10-01 16:08 UTCGHSA enrichment
  14. 2026-10-01 04:17 UTCGHSA enrichment
  15. 2026-09-30 16:27 UTCEG score recompute
  16. 2026-09-30 16:27 UTCGHSA enrichment
  17. 2026-09-30 15:31 UTCEG score recompute
  18. 2026-09-30 15:31 UTCGHSA enrichment
  19. 2026-09-30 15:02 UTCEPSS rescore
  20. 2026-09-30 04:38 UTCGHSA enrichment
  21. 2026-09-29 16:46 UTCEG score recompute
  22. 2026-09-29 16:46 UTCGHSA enrichment
  23. 2026-09-29 15:20 UTCEPSS rescore
  24. 2026-09-29 04:49 UTCEG score recompute
  25. 2026-09-29 04:49 UTCGHSA enrichment
Show 12 more
  1. 2026-09-28 16:58 UTCGHSA enrichment
  2. 2026-09-28 13:55 UTCEG score recompute
  3. 2026-09-28 13:55 UTCGHSA enrichment
  4. 2026-09-28 13:50 UTCEPSS rescore
  5. 2026-09-28 02:04 UTCGHSA enrichment
  6. 2026-09-27 14:13 UTCEG score recompute
  7. 2026-09-27 14:13 UTCGHSA enrichment
  8. 2026-09-27 02:23 UTCEG score recompute
  9. 2026-09-27 02:22 UTCGHSA enrichment
  10. 2026-09-26 14:32 UTCEG score recompute
  11. 2026-09-26 13:36 UTCEG score recompute
  12. 2026-09-26 13:30 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-100682?
CVE-2026-100682 is a high vulnerability published on September 26, 2026. Budibase Server before 3.45.0 contains an arbitrary file write vulnerability in the PWA icon upload endpoint that extracts user-supplied ZIP archives without proper symlink validation. Attackers with BUILDER role can craft a malicious ZIP with leaf symlink entries followed by duplicate file entries…
When was CVE-2026-100682 disclosed?
CVE-2026-100682 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-2026-100682 actively exploited?
CVE-2026-100682 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.6% probability of exploitation in the next 30 days (45th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-100682?
CVE-2026-100682 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-2026-100682?
A fix for CVE-2026-100682 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-100682 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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