# Critical Photon OS Security Update

## Summary

Advisory Id     : PHSA-2026-5.0-91-0978

Type            : Security

Severity        : ['Critical', 'Important']

Issue date      : 2026-09-01

Affected Release: 5.0-91

## Details

Updates of ['krb5', 'rabbitmq-server'] packages of Photon OS have been released.
## Affected Packages

### Critical

rabbitmq-server - ['[CVE-2026-57211](https://nvd.nist.gov/vuln/detail/CVE-2026-57211)', '[CVE-2026-57216](https://nvd.nist.gov/vuln/detail/CVE-2026-57216)']

### Important

krb5 - ['[CVE-2026-40355](https://nvd.nist.gov/vuln/detail/CVE-2026-40355)', '[CVE-2026-40356](https://nvd.nist.gov/vuln/detail/CVE-2026-40356)']

## Solution

Update the affected packages (tdnf update package)

## Updated Packages Information

krb5-1.20.2-15.ph5.x86_64.rpm | size : 1.1M , sha256 : cf78fa21563bf9900ff1d298e4f11be8ae52cd6ccf298068c6948807bd76172f , build time : Tue, 01 Sep 2026 14:10:32 UTC

krb5-devel-1.20.2-15.ph5.x86_64.rpm | size : 140K , sha256 : 42af29d648c11c7cbcdd89d01a70f74b524aee3c132b06992bfa49038e0a535a , build time : Tue, 01 Sep 2026 14:10:32 UTC

krb5-doc-1.20.2-15.ph5.x86_64.rpm | size : 96K , sha256 : ec30b5fd8a6dde45d625fc502d6b61b306490b38f04dcaf26e61173b54527399 , build time : Tue, 01 Sep 2026 14:10:32 UTC

krb5-lang-1.20.2-15.ph5.x86_64.rpm | size : 68K , sha256 : 4af5453c31de7709f58df8f9cc00f3268e20ce8f5fea17ca7966332723522a68 , build time : Tue, 01 Sep 2026 14:10:32 UTC

rabbitmq-server-4.2.9-1.ph5.noarch.rpm | size : 23M , sha256 : 9e975aca5d3bbb4bcdfbd3ccc3c38931593758cf8b9c9117ada0f80db810e8a7 , build time : Tue, 01 Sep 2026 14:21:02 UTC