# Important Photon OS Security Update

## Summary
  
Advisory Id     : PHSA-2026-5.0-91-0826
  
Type            : Security
  
Severity        : ['Important']
  
Issue date      : 2026-04-17
  
Affected Release: 5.0-91

## Details
  
Updates of ['python3-pyasn1'] packages of Photon OS have been released.
## Affected Packages

### Important
  
python3-pyasn1 - ['[CVE-2026-23490](https://nvd.nist.gov/vuln/detail/CVE-2026-23490)']

## Solution
  
Update the affected packages (tdnf update package)

## Updated Packages Information
  
python3-pyasn1-0.4.8-3.3.ph5.noarch.rpm | size : 180K , sha256 : 9872ef8235b3a310dfce460636aad8eb682f9ee25a17e215e7c50defec13517d , build time : Fri, 17 Apr 2026 07:41:34 UTC