CVE-2026-114097 Dulwich - Path Traversal & Remote Code Execution

Dulwich >= 0.23.1 < 1.2.8 contains a path traversal caused by symlink handling in CommitFilter._apply_index_filter(), letting attackers write files outside the working directory, exploit requires crafted repository with symlinks.

CVSS base score 7.8 /10
High
CISA KEV
Not listed
Public exploit
None known
View the NVD record ↗

Details

Type
Path Traversal
Impact
File System Write, Remote Code Execution
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Published
21 October 2026
Updated
21 October 2026
Weakness
CWE-22

Vendor fix

Update to version 1.2.8 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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