BugZero | F5 BugID 653152 - Support RSASSA-PSS-SIGN in F5 crypto APIs.

F5 - Defect ID: 653152

Support RSASSA-PSS-SIGN in F5 crypto APIs.

F5 - Defect ID: 653152

Support RSASSA-PSS-SIGN in F5 crypto APIs.

Last updated on July 18th, 2026

BugZero Risk Score
8.4 High

Overall: 8.4

Severity: 9.1

Community: 4.2

Lifecycle: 7.0

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Bug Details

Priority: 2-Critical
Status: Verified
Impact Category: TMOS

Description

Symptoms

Client certificate verification in BIG-IP v11.6.0 through v13.1.0 does not support client certificates that are signed using the RSASSA-PSS signature algorithm. Validation of such client certificates will fail.

Impact

SSL connections using client PSS certificates are rejected.

Conditions

- Client certificate signed with RSASSA-PSS algorithm. - Client Certificate is set to 'Required' in Client SSL profile. - Running any version of BIG-IP software from v11.6.0 through v13.1.0.

Workaround

There is no workaround at this time.

Fix Information

Validation of client certificates that are signed using the RSASSA-PSS signature algorithm now completes successfully.

Change history

Links

Original Vendor Announcement

Relevant Products

Click on a version to see all relevant bugs

Affected versions:11.6.0, 11.6.0 hf1, 11.6.0 hf2, 11.6.0 hf3, 11.6.0 hf4, 11.6.0 hf5, 11.6.0 hf6, 11.6.0 hf7, 11.6.0 hf8, 11.6.1, 11.6.1 hf1, 11.6.1 hf2, 11.6.2, 11.6.2 hf1, 11.6.3, 11.6.3.1, 11.6.3.2, 11.6.3.3, 11.6.3.4, 11.6.4, 11.6.5, 11.6.5.1, 11.6.5.2, 11.6.5.3, 12.0.0, 12.0.0 hf1, 12.0.0 hf2, 12.0.0 hf3, 12.0.0 hf4, 12.1.0, 12.1.0 hf1, 12.1.0 hf2, 12.1.1, 12.1.1 hf1, 12.1.1 hf2, 12.1.2, 12.1.2 hf1, 12.1.2 hf2, 12.1.3, 12.1.3.1, 12.1.3.2, 12.1.3.3, 12.1.3.4, 12.1.3.5, 12.1.3.6, 12.1.3.7, 12.1.4, 12.1.4.1, 13.0.0, 13.0.0 hf1, 13.0.0 hf2, 13.0.0 hf3, 13.0.1, 13.1.0, 13.1.0.1, 13.1.0.2, 13.1.0.3, 13.1.0.4, 13.1.0.5, 13.1.0.6, 13.1.0.7, 13.1.0.8, 13.1.1, 13.1.1.2, 13.1.1.3, 13.1.1.4, 13.1.1.5, 13.1.3, 13.1.3.1, 13.1.3.2, 13.1.3.3, 13.1.3.4, 13.1.3.5, 13.1.3.6, 13.1.4, 13.1.4.1, 13.1.5, 13.1.5.1

Fixed versions: 14.0.0, 12.1.5

Relevant Products

Click on a version to see all relevant bugs

Fixed versions: 14.0.0, 12.1.5

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F5 Integration

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F5 - Defect ID: 653152

Support RSASSA-PSS-SIGN in F5 crypto APIs.

F5 - Defect ID: 653152

Support RSASSA-PSS-SIGN in F5 crypto APIs.

Last updated on July 18th, 2026

BugZero Risk Score8.4 High

Bug Details

Symptoms

Impact

Conditions

Workaround

Fix Information

Links

Top F5 Defects

Ready to prevent the next vendor outage?

F5 - Defect ID: 653152

Support RSASSA-PSS-SIGN in F5 crypto APIs.

F5 - Defect ID: 653152

Support RSASSA-PSS-SIGN in F5 crypto APIs.

Last updated on July 18th, 2026

BugZero Risk Score8.4 High

Bug Details

Symptoms

Impact

Conditions

Workaround

Fix Information

Links

Top F5 Defects

Ready to prevent the next vendor outage?

BugZero Risk Score
8.4 High

BugZero Risk Score
8.4 High