CVE-2020-15084

HIGHNVD 7.77.7—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.7 under NVD CVSS v3. EPSS exploit probability: 1.1%, top 39% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
Trending — 3 sources updated this week
7.7
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 7.7Exploit: NoneExposed: 0

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

In express-jwt (NPM package) up and including version 5.3.3, the algorithms entry to be specified in the configuration is not being enforced. When algorithms is not specified in the configuration, with the combination of jwks-rsa, it may lead to authorization bypass. You are affected by this vulnerability if all of the following conditions apply: - You are using express-jwt - You do not have algorithms configured in your express-jwt configuration. - You are using libraries such as jwks-rsa as the secret. You can fix this by specifying algorithms in the express-jwt configuration. See linked GHSA for example. This is also fixed in version 6.0.0.

CVSS v3
7.7
EG Score
7.7(medium)
EG Risk
40(Track)
EG Risk 40/100SSVC: 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
Severity77% × 45%
Exploitation1% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
60.8%
KEV
Not listed

Published

June 30, 2020

Last Modified

November 21, 2024

References (4)

Affected Packages

(1 across 1 ecosystem)
npm(1)
PackageVulnerable rangeFixed inDependents
express-jwt—6.0.0—

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 14× in last 7d / 45× 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 01:49 UTCEG score recompute
  2. 2026-07-22 22:35 UTCEG score recompute
  3. 2026-07-22 14:05 UTCEPSS rescore
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  9. 2026-07-19 09:52 UTCOSV refresh
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  1. 2026-07-06 02:20 UTCEPSS rescore
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  4. 2026-07-01 15:31 UTCOSV refresh
  5. 2026-07-01 15:03 UTCEPSS rescore
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  38. 2026-06-14 00:13 UTCOSV refresh
  39. 2026-06-13 22:58 UTCEPSS rescore
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  70. 2026-05-27 01:46 UTCEG score recompute
  71. 2026-05-26 13:42 UTCEPSS rescore
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  73. 2026-05-26 07:17 UTCEPSS rescore
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Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2020-15084?
CVE-2020-15084 is a high vulnerability published on June 30, 2020. In express-jwt (NPM package) up and including version 5.3.3, the algorithms entry to be specified in the configuration is not being enforced. When algorithms is not specified in the configuration, with the combination of jwks-rsa, it may lead to authorization bypass. You are affected by this…
When was CVE-2020-15084 disclosed?
CVE-2020-15084 was first published in the National Vulnerability Database on June 30, 2020, 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-2020-15084 actively exploited?
CVE-2020-15084 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 60.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2020-15084?
CVE-2020-15084 has a CVSS v3 base score of 7.7 (NVD).
How do I remediate CVE-2020-15084?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-15084, 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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