Improper Authorization in PingFederate Administrative Expression Evaluation Endpoint

published 2026-09-14 last mo. modified 2026-09-18 last mo. also EUVD-2026-77373

cvss: 8.5; version 4.0, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.4%; EPSS 0.4% chance of exploitation in 30 days, percentile 28%
public exploits: 0; none known

A role-based access control issue was identified in the administrative expression evaluation functionality. This could allow users with certain administrative roles to access expression testing capabilities beyond their intended permissions.

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CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: last mo. (2026-09-14)

Exploit prediction

0.35% chance of exploitation in the next 30 days, higher than 28% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
CNA	4.0	8.5	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:H/SA:H
CNA	4.0	8.5	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:H/SA:H/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

Affected products

Ping Identity PingFederate

Classification

Weakness

CWE-863 Incorrect Authorization

References

support.pingidentity.com /s/article/SECADV054-Improper-Authorization-in-PingFederate-Administrative-Expression-Evaluation-Endpoint

Sources

CVE List CVE-2026-20773
NVD CVE-2026-20773

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