PingFederate and PingAccess
CVE-2021-31923: Ping Identity PingAccess before 5.3.3 allows HTTP request smuggling via header manipulation.
Ping Identity PingAccess before 5.3.3 allows HTTP request smuggling via header manipulation.
Published
ExploitedNot in CISA KEV
Ransomware useNot reportedPer CISA
SeverityUnknown
EPSS0.71%Chance of exploitation in 30 days
Public exploitNot tracked
FixSee advisory
Automatic summary from the vendor's CVE record. We haven't written a full analysis of this vulnerability yet.
Affected and fixed versions
| Product / branch | Fixed in |
|---|---|
| PingAccess 5.3 | See the advisory |
Always confirm against the vendor advisory, which lists every fixed hotfix.
What it is
Ping Identity PingAccess before 5.3.3 allows HTTP request smuggling via header manipulation.
Sources
KEV status, EPSS score and vendor data refreshed automatically, last on 13 Oct 2026.