CVE-2026-104056

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-104056
StatePUBLISHED
Assignercertcc
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-01 19:17:19 UTC
Updated2026-10-05 19:17:14 UTC
DescriptionAuthlib version 1.7.2 and below contains a vulnerability where discovery JSON metadata is cached without validation or issuer-origin binding. This allows a poisoned discovery response to replace all endpoint values with attacker-controlled values rather than endpoint URLs that share the origin of the configured server metadata URL.

Risk And Classification

Primary CVSS: v3.1 9.8 CRITICAL from ADP

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

EPSS: 0.001670000 probability, percentile 0.054510000 (date 2026-10-06)

Problem Types: CWE-345 | CWE-346 | CWE-829 | CWE-345 Insufficient Verification of Data Authenticity | CWE-346 Origin Validation Error | CWE-829 Inclusion of Functionality from Untrusted Control Sphere | CWE-345 CWE-345 Insufficient Verification of Data Authenticity | CWE-346 CWE-346 Origin Validation Error | CWE-829 CWE-829 Inclusion of Functionality from Untrusted Control Sphere

VersionSourceTypeScoreSeverityVector
3.1ADPDECLARED9.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary9.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

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

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Authlib Authlib affected 1.7.2 Not specified

References

ReferenceSourceLinkTags
uziii2208.github.io/post/cve-2026-104056 134c704f-9b21-4f2e-91b3-4a467353bcc0 uziii2208.github.io
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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