CVE-2026-18348

MEDIUMPre-NVD 4.14.1—
EchelonGraph scoreHIGH confidence

Score 4.1 from GitHub Security Advisory published 2026-08-11. a secondary CVSS source baseline 4.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
4.1EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 4.1Exploit: None knownExposed: 0

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

Missing authorization check in the upload_azure, upload_sftp, and upload_smb VQL plugins allows an authenticated analyst-role user can initiate attacker-controlled outbound network connections from the Velociraptor server, bypassing the NETWORK ACL permission boundary. This enables internal network reconnaissance via port oracle and potential data exfiltration to external endpoints.

CVSS v3
4.1
EG Score
4.1(high)
EG Risk
19(Track)
EG Risk 19/100SSVC: 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
Severity41% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
16%
KEV
Not listed

Published

August 11, 2026

Last Modified

August 11, 2026

Advisory Details (2)

Auto-updated Aug 11, 2026
Upstream fix merged — awaiting tagged release. Sources: github_commit.
github_commit

commit 48824fb51a2b (Velocidex/velociraptor)

Fix landed in Velocidex/velociraptor commit 48824fb51a2b — awaiting tagged release

https://github.com/Velocidex/velociraptor/commit/48824fb51a2bdba832abc281e719ecbed74736df
generic

CVE-2026-18348 Velociraptor NETWORK ACL bypass via upload_azure / …

http://docs.velociraptor.app/announcements/advisories/cve-2026-18348/

Vendor Advisories for CVE-2026-18348(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 20× in last 7d / 31× 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. 2026-08-19 20:25 UTCEG score recompute
  2. 2026-08-19 20:25 UTCGHSA enrichment
  3. 2026-08-19 17:03 UTCEPSS rescore
  4. 2026-08-18 19:48 UTCEG score recompute
  5. 2026-08-18 19:48 UTCGHSA enrichment
  6. 2026-08-18 13:48 UTCEPSS rescore
  7. 2026-08-17 19:17 UTCEG score recompute
  8. 2026-08-17 19:17 UTCGHSA enrichment
  9. 2026-08-17 13:47 UTCEPSS rescore
  10. 2026-08-16 18:25 UTCEG score recompute
  11. 2026-08-16 18:25 UTCGHSA enrichment
  12. 2026-08-16 14:56 UTCEPSS rescore
  13. 2026-08-16 02:14 UTCEPSS rescore
  14. 2026-08-15 17:54 UTCEG score recompute
  15. 2026-08-15 17:54 UTCGHSA enrichment
  16. 2026-08-15 01:30 UTCEPSS rescore
  17. 2026-08-14 17:22 UTCEG score recompute
  18. 2026-08-14 17:22 UTCGHSA enrichment
  19. 2026-08-13 22:00 UTCEPSS rescore
  20. 2026-08-13 16:39 UTCGHSA enrichment
  21. 2026-08-12 16:06 UTCEG score recompute
  22. 2026-08-12 16:06 UTCGHSA enrichment
  23. 2026-08-12 13:50 UTCEPSS rescore
  24. 2026-08-11 15:35 UTCEG score recompute
  25. 2026-08-11 15:35 UTCGHSA enrichment
Show 6 more
  1. 2026-08-11 14:32 UTCEG score recompute
  2. 2026-08-11 14:32 UTCGHSA enrichment
  3. 2026-08-11 13:42 UTCEPSS rescore
  4. 2026-08-11 06:24 UTCEG score recompute
  5. 2026-08-11 05:58 UTCEG score recompute
  6. 2026-08-11 05:58 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-18348?
CVE-2026-18348 is a medium vulnerability published on August 11, 2026. Missing authorization check in the uploadazure, uploadsftp, and upload_smb VQL plugins allows an authenticated analyst-role user can initiate attacker-controlled outbound network connections from the Velociraptor server, bypassing the NETWORK ACL permission boundary. This enables internal network…
When was CVE-2026-18348 disclosed?
CVE-2026-18348 was first published in the National Vulnerability Database on August 11, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-18348 actively exploited?
CVE-2026-18348 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 83.9% of all scored CVEs.
What is the CVSS score of CVE-2026-18348?
CVE-2026-18348 has a CVSS v3 base score of 4.1 (NVD).
How do I remediate CVE-2026-18348?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-18348, 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

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