CVE-2026-114096 Dulwich - Remote Code Execution

Dulwich >= 0.24.0 < 1.2.8 contains a symlink following vulnerability caused by improper use of os.open without O_NOFOLLOW in porcelain.checkout(paths=[...]), letting attackers write arbitrary files and execute code by crafting malicious worktree symlinks.

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

Details

Type
Remote Code Execution
Impact
Remote Code Execution, File System Write
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-59

Vendor fix

Upgrade 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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