Mar 27, 2026 - For details about updated CVE-2025-53521 (BIG-IP APM vulnerability), refer to K000156741.

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Rotem's avatar
Rotem
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Sep 08, 2019

Decode base64 underscore not accepted

Hi , Im trying to decode based64 (JWT) using irule , on regular basis this works great .. but right now i found when there is an underscore "_" in payload the request breaks with the following err...