Dear Qubes Community,
We have updated [Qubes Security Bulletin 090: Zenbleed (CVE-2023-20593, XSA-433)](https://github.com/QubesOS/qubes-secpack/blob/main/QSBs/qsb-090-2023.txt). The text of this updated QSB (including a changelog) and its accompanying cryptographic signatures are reproduced below. For an explanation of this announcement and instructions for authenticating this QSB, please see the end of this announcement.
## Qubes Security Bulletin 090
---===[ Qubes Security Bulletin 090 ]===---
Zenbleed (CVE-2023-20593, XSA-433)