CVE-2026-66724

MEDIUMPre-NVD 5.35.3—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 5.3 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.3%, top 81% 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, secondary
Trending — 3 sources updated this week
5.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.3Exploit: None knownExposed: 0

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

MWDB Core versions >=2.0.0 and <2.19.0 contain a missing authorization vulnerability in the deprecated config and blob upload endpoints. These endpoints accept the undocumented POST method, which bypasses the capability checks applied to the documented PUT method. This allows any authenticated user without the adding_configs or adding_blobs capabilities to upload config and text blob objects to the system. The impact is limited to adding new config and blob objects. This issue has been fixed in version 2.19.0

CVSS v3
5.3
EG Score
5.3(medium)
EG Risk
28(Track)
EG Risk 28/100SSVC: 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
Severity53% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
19%
KEV
Not listed

Published

July 29, 2026

Last Modified

July 30, 2026

Advisory Details (3)

Auto-updated Jul 29, 2026
Patch available. Sources: github, github_release.
github_release Patch Available

v2.19.0

Patch available: CERT-Polska/mwdb-core v2.19.0

https://github.com/CERT-Polska/mwdb-core/releases/tag/v2.19.0
github Patch Available

Undocumented HTTP method on deprecated config/blob upload endpoints allow bypassing permissions · Advisory · CERT-Polska/mwdb-core · GitHub

Affected: 2.19.0.

https://github.com/CERT-Polska/mwdb-core/security/advisories/GHSA-8fv8-wffg-4323
generic Patch Available

Vulnerabilities in MWDB Core software | CERT Polska

https://cert.pl/en/posts/2026/07/CVE-2026-66723

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 11× in last 7d / 11× 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. 2026-08-03 19:53 UTCEG score recompute
  2. 2026-08-03 10:36 UTCEPSS rescore
  3. 2026-08-02 19:07 UTCEG score recompute
  4. 2026-08-02 02:27 UTCEPSS rescore
  5. 2026-08-01 18:21 UTCEG score recompute
  6. 2026-08-01 04:16 UTCEPSS rescore
  7. 2026-07-30 16:45 UTCEG score recompute
  8. 2026-07-30 16:28 UTCEPSS rescore
  9. 2026-07-29 15:21 UTCEG score recompute
  10. 2026-07-29 14:48 UTCEG score recompute
  11. 2026-07-29 14:47 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-66724?
CVE-2026-66724 is a medium vulnerability published on July 29, 2026. MWDB Core versions >=2.0.0 and <2.19.0 contain a missing authorization vulnerability in the deprecated config and blob upload endpoints. These endpoints accept the undocumented POST method, which bypasses the capability checks applied to the documented PUT method. This allows any authenticated user…
When was CVE-2026-66724 disclosed?
CVE-2026-66724 was first published in the National Vulnerability Database on July 29, 2026, with the most recent update on July 30, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-66724 actively exploited?
CVE-2026-66724 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 81.1% of all scored CVEs.
What is the CVSS score of CVE-2026-66724?
CVE-2026-66724 has a CVSS v3 base score of 5.3 (NVD).
How do I remediate CVE-2026-66724?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-66724, 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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