F5-K000159896: Medium severity F5 BIG-IP Next for Kubernetes vulnerability

Published Feb 5, 2026
·
Updated

The processing time for parsing some invalid inputs scales non-linearly with respect to the size of the input. This affects programs which parse untrusted PEM inputs.

Affected Software

3 affected componentsFixes available
F5 BIG-IP Next for Kubernetes=2.1.0
2.2.0
F5 F5OS-A>=1.8.0<=1.8.3
F5 F5OS-C>=1.8.0<=1.8.2

Event History

Feb 5, 2026
Advisory Published
via F5·07:41 PM
Data Sourced
via F5·07:41 PM
DescriptionSeverityWeaknessAffected Software
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Frequently Asked Questions

1

What is the severity of F5-K000159896?

The severity of F5-K000159896 is considered to be high due to its impact on performance and potential denial-of-service conditions.

2

How do I fix F5-K000159896?

To fix F5-K000159896, upgrade to the patched versions provided by F5 in their security advisory.

3

What software is affected by F5-K000159896?

F5-K000159896 affects F5 BIG-IP Next for Kubernetes version 2.1.0, F5OS-A versions between 1.8.0 and 1.8.3, and F5OS-C versions between 1.8.0 and 1.8.2.

4

What is the impact of F5-K000159896 on applications?

F5-K000159896 causes non-linear processing time increases when parsing invalid PEM inputs, affecting application performance.

5

Is F5-K000159896 related to parsing untrusted inputs?

Yes, F5-K000159896 specifically relates to the vulnerability that affects the parsing of untrusted PEM inputs.

Contact

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