CVE-2026-100520

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: 0.9%CVSS: 8.8Exploit: Elevated riskExposed services: Not assessed

A fix is available — apply it.

Laranode versions before 1.2.1 contain a path traversal vulnerability in the POST /filemanager/upload-file endpoint that allows authenticated users to write arbitrary files outside their home directory. Attackers can supply directory traversal sequences in the path parameter to write PHP files into other tenants' web roots and execute code as those tenants.

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 or medium mission impact; Track* at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.9%
EPSS %ILE
59th
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 (7)

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

Laranode before 1.2.1 Path Traversal in File Manager Upload Endpoint | Advisories | VulnCheck

https://www.vulncheck.com/advisories/laranode-before-1.2.1-path-traversal-in-file-manager-upload-endpoint
github Patch Available

File manager operations could escape the authenticated user's home directory · Advisory · crivion/laranode · GitHub

https://github.com/crivion/laranode/security/advisories/GHSA-34h2-2696-vfvr
github_release Patch Available

v1.2.1 — Security fix (file manager) + upgrade path repair

Patch available: crivion/laranode v1.2.1

https://github.com/crivion/laranode/releases/tag/v1.2.1
github_pr Patch Available

Contain file manager operations within the tenant's home

Patch available: crivion/laranode v1.2.1 (PR #21 merged 2026-09-21)

https://github.com/crivion/laranode/pull/21
github_commit Patch Available

commit 5c2b18ae99ca (crivion/laranode)

Patch available: crivion/laranode v1.2.1 (contains commit 5c2b18ae99ca)

https://github.com/crivion/laranode/commit/5c2b18ae99caf77a6fb6cc5c0ab66562bd673424
generic

laranode/app/Actions/Filemanager/UploadFileAction.php at v1.2 · crivion/laranode · GitHub

https://github.com/crivion/laranode/blob/v1.2/app/Actions/Filemanager/UploadFileAction.php
generic

GitHub - crivion/laranode: Free Hosting Panel - Easily manage your VPS/dedicated machine with Laranode (a cPanel/Plesk alternative) · GitHub

https://github.com/crivion/laranode

Vendor Advisories for CVE-2026-100520(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 / 40× 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. 2026-10-05 01:06 UTCGHSA enrichment
  2. 2026-10-04 12:12 UTCGHSA enrichment
  3. 2026-10-03 23:18 UTCEG score recompute
  4. 2026-10-03 23:18 UTCGHSA enrichment
  5. 2026-10-03 14:25 UTCEPSS rescore
  6. 2026-10-03 10:21 UTCGHSA enrichment
  7. 2026-10-02 21:27 UTCEG score recompute
  8. 2026-10-02 21:27 UTCGHSA enrichment
  9. 2026-10-02 08:29 UTCEG score recompute
  10. 2026-10-02 08:29 UTCGHSA enrichment
  11. 2026-10-01 19:49 UTCEPSS rescore
  12. 2026-10-01 19:35 UTCGHSA enrichment
  13. 2026-10-01 06:41 UTCGHSA enrichment
  14. 2026-09-30 17:47 UTCEG score recompute
  15. 2026-09-30 17:47 UTCGHSA enrichment
  16. 2026-09-30 15:02 UTCEPSS rescore
  17. 2026-09-30 14:36 UTCGHSA enrichment
  18. 2026-09-30 01:30 UTCEG score recompute
  19. 2026-09-30 01:30 UTCGHSA enrichment
  20. 2026-09-30 00:39 UTCEG score recompute
  21. 2026-09-30 00:38 UTCGHSA enrichment
  22. 2026-09-29 19:47 UTCEG score recompute
  23. 2026-09-29 19:47 UTCGHSA enrichment
  24. 2026-09-29 15:20 UTCEPSS rescore
  25. 2026-09-29 06:51 UTCEG score recompute
Show 15 more
  1. 2026-09-29 06:51 UTCGHSA enrichment
  2. 2026-09-28 17:58 UTCEG score recompute
  3. 2026-09-28 17:58 UTCGHSA enrichment
  4. 2026-09-28 13:50 UTCEPSS rescore
  5. 2026-09-28 04:56 UTCGHSA enrichment
  6. 2026-09-27 16:02 UTCEG score recompute
  7. 2026-09-27 16:02 UTCGHSA enrichment
  8. 2026-09-27 03:08 UTCEG score recompute
  9. 2026-09-27 03:08 UTCGHSA enrichment
  10. 2026-09-26 15:58 UTCEPSS rescore
  11. 2026-09-26 14:14 UTCEG score recompute
  12. 2026-09-26 14:14 UTCGHSA enrichment
  13. 2026-09-26 01:20 UTCEG score recompute
  14. 2026-09-26 01:12 UTCEG score recompute
  15. 2026-09-26 01:09 UTCMITRE cvelistV5first tracked

Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 GitHub PoC). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCwvllxe/CVE-2026-100520-laranode-path-traversal
    First seen Oct 2, 2026

    Path Traversal -> RCE in Laranode < 1.2.1 (CWE-22). PoC + advisory writeup.

    Open source ↗

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-100520?
CVE-2026-100520 is a high vulnerability published on September 26, 2026. Laranode versions before 1.2.1 contain a path traversal vulnerability in the POST /filemanager/upload-file endpoint that allows authenticated users to write arbitrary files outside their home directory. Attackers can supply directory traversal sequences in the path parameter to write PHP files into…
When was CVE-2026-100520 disclosed?
CVE-2026-100520 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-2026-100520 actively exploited?
CVE-2026-100520 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.9% probability of exploitation in the next 30 days (59th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-100520?
CVE-2026-100520 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-2026-100520?
A fix for CVE-2026-100520 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-100520 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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