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Ubuntu Mako Vulnerability Exposes Sensitive Information

Ubuntu Mako Vulnerability Exposes Sensitive Information

First seen 6 May 2026, 02:55 UTC • •
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ThreatCluster AI
ThreatCluster •May 6, 2026 at 09:27 UTC
  • •CVE-2026-41205 affects multiple Ubuntu versions from 16.04 to 26.04 LTS.
  • •The vulnerability allows remote attackers to expose sensitive information.
  • •Users should update to patched versions of python3-mako to mitigate risks.

A security vulnerability in the Mako templating engine affects multiple Ubuntu releases, including 26.04 LTS and earlier versions down to 16.04 LTS. The flaw, identified as CVE-2026-41205, allows remote attackers to exploit incorrect URI handling with double-slash prefixes in TemplateLookup, potentially exposing sensitive information over the network. Users are advised to update their systems to the specified patched versions to mitigate this risk. The vulnerability was published on April 23, 2026, and is considered a medium severity issue due to its potential impact on data confidentiality. Affected package versions include python3-mako across several Ubuntu releases. Standard system updates are recommended to resolve the issue.

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Updated 137d ago How this analysis works

Timeline

2026-04-23
CVE-2026-41205 published
A vulnerability in Mako was disclosed, affecting various Ubuntu versions and allowing potential information exposure.
Linuxsecurity
2026-05-05
Ubuntu releases security advisory
Ubuntu published USN-8234-1 detailing the Mako vulnerability and recommending updates for affected systems.
Ubuntu

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Extracted Entities (8)

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