Dulwich's submodule path traversal in porcelain.submodule_update / porcelain.clone(recurse_submodules=True) yields RCE via attacker-dropped .git/hooks payload

Summarydulwich.porcelain.submoduleupdate, and by extension porcelain.clone..., recursesubmodules=True, materializes attacker-controlled submodule paths from a crafted upstream repository without path validation. A malicious .gitmodules plus a matching tree gitlink whose path is .git/hooks or any...

CVE-2026-52726

Dulwich is a pure-Python implementation of the Git file formats and protocols. Starting in version 0.23.2 and prior to version 1.2.5, dulwich.porcelain.submoduleupdate, and by extension porcelain.clone..., recursesubmodules=True, materializes attacker-controlled submodule paths from a crafted...

UBUNTU-CVE-2026-52726

Dulwich is a pure-Python implementation of the Git file formats and protocols. Starting in version 0.23.2 and prior to version 1.2.5, dulwich.porcelain.submoduleupdate, and by extension porcelain.clone..., recursesubmodules=True, materializes attacker-controlled submodule paths from a crafted...

Directory Traversal

Overview Affected versions of this package are vulnerable to Directory Traversal via the porcelain.submoduleupdate module when handling attacker-controlled submodule paths from a crafted upstream repository without proper path validation. An attacker can achieve arbitrary code execution by crafti...

CVE-2026-52726: Improper Limitation of a Pathname to a Restricted Directory

Dulwich is a pure-Python implementation of the Git file formats and protocols. Starting in version 0.23.2 and prior to version 1.2.5, dulwich.porcelain.submoduleupdate, and by extension porcelain.clone..., recursesubmodules=True, materializes attacker-controlled submodule paths from a crafted...