External Authentication - Moderately critical - Access bypass - SA-CONTRIB-2026-098

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-73476
StatePUBLISHED
Assignerdrupal
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-02 13:18:08 UTC
Updated2026-09-02 19:18:02 UTC
DescriptionImproper Handling of Case Sensitivity vulnerability in Drupal External Authentication allows Privilege Escalation. This issue affects External Authentication versions: from 0.0.0 to 2.0.13.

Risk And Classification

Primary CVSS: v3.1 5.4 MEDIUM from ADP

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

EPSS: 0.001710000 probability, percentile 0.067030000 (date 2026-09-06)

Problem Types: CWE-178 | CWE-178 CWE-178 Improper Handling of Case Sensitivity

VersionSourceTypeScoreSeverityVector
3.1ADPDECLARED5.4MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary5.4MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Drupal External Authentication affected 0.0.0 2.0.13 semver Not specified

References

ReferenceSourceLinkTags
www.drupal.org/sa-contrib-2026-098 [email protected] www.drupal.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: 晉宇 林 (whale120) (en)

CNA: Sven Decabooter (svendecabooter) (en)

CNA: Swan Kalata (akalata) (en)

CNA: Neil Drumm (drumm) (en)

CNA: Greg Knaddison (greggles) (en)

CNA: Juraj Nemec (poker10) (en)

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