Medium 5.3Published Jul 29, 2026

CVE-2026-66724Permission Bypass Via Undocumented HTTP Methods In MWDB Core

Updated under an hour ago (Oct 27, 2026, 8:30 AM ET)

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It affects CERT.PL MWDB Core. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for CERT.PL MWDB Core

Exploited in the last 30 days

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: 5.3 MEDIUM (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
Weakness (CWE): CWE-862
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: CERT-PL
NVD analysis: Deferred
Record last updated: Jul 29, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

CERT.PL MWDB Core cert.pl:mwdb_core (from the name)	from 2.0.0 before 2.19.0	CNA record

References

References

https://cert.pl/en/posts/2026/07/CVE-2026-66723	vendor-advisory
https://github.com/CERT-Polska/mwdb-core/security/advisories/GHSA-8fv8-wffg-4323	vendor-advisory
https://github.com/CERT-Polska/mwdb-core/releases/tag/v2.19.0	patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.