[MDEV-39408] mbstream insufficient path validation - Jira

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Type: Bug
Status: Closed (View Workflow)
Priority: Critical
Resolution: Fixed
Affects Version/s: 10.6, 10.11, 11.4, 11.8, 12.3
Fix Version/s: 10.6.26, 10.11.17, 11.4.11, 11.8.7, 12.3.2
Component/s: mariabackup
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None

Bug Category:
Can result in unexpected behaviour

Description

specially crafted mbstream file (attached) can make mbstream to create files outside of the target dir.

Reported by Riley Scott Jacob.

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mdev-39408.mb
2026-04-22 13:12
0.3 kB
Sergei Golubchik

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Assignee:: Sergei Golubchik

Reporter:: Sergei Golubchik

Assigned for Implementation:: Sergei Golubchik

Votes:: 0 Vote for this issue

Watchers:: 2 Start watching this issue

Dates

Created:: 2026-04-22 13:10

Updated:: 2026-05-18 17:52

Resolved:: 2026-04-27 07:44

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