CVE-2018-19466

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2022-05-13. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this weekElevated
9.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 4%CVSS: 9.8Exploit: NoneExposed: 0

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

A vulnerability was found in Portainer before 1.20.0. Portainer stores LDAP credentials, corresponding to a master password, in cleartext and allows their retrieval via API calls.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
65(Track*)
EG Risk 65/100SSVC: 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
Severity98% × 45%
Exploitation40% × 40%
Automatability30% × 15%
Action: Watch closely — could escalate to Attend.
EPSS
88.6%
KEV
Not listed

Published

March 27, 2019

Last Modified

November 21, 2024

Advisory Details (3)

Auto-updated Jun 20, 2026
Upstream fix merged — awaiting tagged release. Sources: github_pr.
generic

Releases · portainer/portainer · GitHub

https://github.com/portainer/portainer/releases
github_pr

feat(api): filter LDAP password from settings response

Fix merged in portainer/portainer PR #2488 on 2018-11-23 — awaiting tagged release

https://github.com/portainer/portainer/pull/2488
generic

GitHub - MauroEldritch/lempo: LEMPO (Ldap Exposure on POrtainer) is an exploit for CVE-2018-19466 (LDAP Credentials Disclosure on Portainer). Featured @ DevFest Siberia 2018 · GitHub

https://github.com/MauroEldritch/lempo

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 12× in last 7d / 49× 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. 2026-07-23 01:35 UTCEG score recompute
  2. 2026-07-22 22:15 UTCEG score recompute
  3. 2026-07-22 14:05 UTCEPSS rescore
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  65. 2026-05-27 21:21 UTCEG score recompute
  66. 2026-05-27 21:21 UTCGHSA enrichment
  67. 2026-05-27 13:38 UTCEPSS rescore
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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 PoCMauroEldritch/lempo
    First seen Nov 24, 2018

    LEMPO (Ldap Exposure on POrtainer) is an exploit for CVE-2018-19466 (LDAP Credentials Disclosure on Portainer). Featured @ DevFest Siberia 2018

    Open source ↗

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2018-19466?
CVE-2018-19466 is a critical vulnerability published on March 27, 2019. A vulnerability was found in Portainer before 1.20.0. Portainer stores LDAP credentials, corresponding to a master password, in cleartext and allows their retrieval via API calls.
When was CVE-2018-19466 disclosed?
CVE-2018-19466 was first published in the National Vulnerability Database on March 27, 2019, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2018-19466 actively exploited?
CVE-2018-19466 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 88.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2018-19466?
CVE-2018-19466 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2018-19466?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-19466, 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.

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