Improper Claim Validation in PingAM OIDC Provider

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-21391
StatePUBLISHED
AssignerPing Identity
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-14 12:17:38 UTC
Updated2026-09-18 19:30:42 UTC
DescriptionAn improper validation vulnerability exists within PingAM where a well-crafted request allows arbitrary or protected ID Token claims to be set or overridden. In certain configurations this could allow an attacker to bypass authentication controls via spoofing leading to privilege escalation or impersonation.

Risk And Classification

Primary CVSS: v4.0 9.5 CRITICAL from [email protected]

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:L/SC:H/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS: 0.004460000 probability, percentile 0.380440000 (date 2026-09-21)

Problem Types: CWE-290 | CWE-290 CWE-290 Authentication bypass by spoofing

VersionSourceTypeScoreSeverityVector
4.0[email protected]Secondary9.5CRITICALCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:L/SC:H/SI:H/SA:N/E:X/C...
4.0CNACVSS9.5CRITICALCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:L/SC:H/SI:H/SA:N

CVSS v4.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
Present
Privileges Required
None
User Interaction
None
Confidentiality
High
Integrity
High
Availability
Low
Sub Conf.
High
Sub Integrity
High
Sub Availability
None

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:L/SC:H/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Ping Identity PingAM affected 8.1.0 semver Not specified
CNA Ping Identity PingAM affected 8.0.0 8.0.2 semver Not specified
CNA Ping Identity PingAM affected 7.5.0 7.5.2 semver Not specified
CNA Ping Identity PingAM affected 7.4.0 7.4.2 semver Not specified
CNA Ping Identity PingAM affected 7.3.0 7.3.3 semver Not specified
CNA Ping Identity PingAM affected 7.2.0 7.2.2 semver Not specified
CNA Ping Identity PingAM affected 7.1.0 7.1.4 semver Not specified
CNA Ping Identity PingAM affected 7.0.0 7.0.2 semver Not specified
CNA Ping Identity PingAM affected 7.0.0 semver Not specified

References

ReferenceSourceLinkTags
support.pingidentity.com/s/article/PingAM-Security-Advisory-202603 [email protected] support.pingidentity.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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