CVE-2026-38974

Dulwich through 1.1.0 was found to be missing SSH host key verification in contrib/paramikovendor.py...

CVE-2026-38974

Dulwich through 1.1.0 was found to be missing SSH host key verification in contrib/paramikovendor.py...

Key Exchange without Entity Authentication

Overview Affected versions of this package are vulnerable to Key Exchange without Entity Authentication through contrib/paramikovendor.py in the SSH connection path. An attacker can intercept or impersonate an SSH server and have the client connect without validating the server’s host key by...

CVE-2026-38974

Dulwich through 1.1.0 was found to be missing SSH host key verification in contrib/paramikovendor.py...

CVE-2026-38974

CVE-2026-38974 affects Dulwich up to 1.1.0, where the SSH host key verification is missing in contrib/paramiko_vendor.py. The flaw enables a remote attacker to impersonate a legitimate Git server during SSH connections, potentially exposing sensitive data or enabling code execution on the client....

CVE-2026-38974

Dulwich through 1.1.0 was found to be missing SSH host key verification in contrib/paramikovendor.py...

PT-2026-60333

Name of the Vulnerable Software and Affected Versions Dulwich versions prior to 1.1.0 Description Dulwich fails to perform SSH host key verification within the contrib/paramiko vendor.py file. This lack of verification allows for potential man-in-the-middle attacks during SSH connections...

CVE-2026-38974

Dulwich through 1.1.0 was found to be missing SSH host key verification in contrib/paramikovendor.py...

SUSE-SU-2026:2984-1 Security update for python3-dulwich

This update for python3-dulwich fixes the following issues: - CVE-2026-47734: Do not honour receive.maxInputSize to bound received packs bsc1268138...

PYSEC-2026-2465 Dulwich's submodule path traversal in porcelain.submodule_update / porcelain.clone(recurse_submodules=True) yields RCE via attacker-dropped .git/hooks payload

Summary dulwich.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...

PYSEC-2026-2462 Dulwich doesn't sanitize commit subjects in `porcelain.format_patch`

Impact dulwich.porcelain.formatpatchoutdir=... derives each patch filename from the commit's subject line. Prior to this fix, getsummary only replaced spaces with dashes - path separators /, , parent-directory components .., and other filename-hostile characters e.g. : were preserved verbatim and...

PYSEC-2026-2466 Dulwich has unbounded memory allocation in receive-pack from crafted thin packs

Impact An uncontrolled-resource-consumption memory exhaustion denial-of-service vulnerability CWE-400 / CWE-789. A client with push access could push a tiny crafted thin pack 174 bytes whose delta header declares a huge destsize. When dulwich ingested it via addthinpack / applydelta, it would...

PYSEC-2026-2463 Dulwich has an arbitrary file write via NTFS-hostile tree entries on Windows

Impact Arbitrary file write leading to remote code execution when cloning or checking out a malicious Git repository on Windows. Dulwich's path-element validator accepted tree entries whose filenames contained bytes that Windows interprets as structural path syntax: - \ — the Windows path...

PYSEC-2026-2464 Dulwich Vulnerable to Command Injection via Merge Driver Path

Summary Dulwich's ProcessMergeDriver substitutes the file path from the git tree, controllable by an attacker via a malicious branch into the merge driver command via the %P placeholder and executes it with subprocess.run..., shell=True. An attacker who can cause a victim to merge an untrusted...

[SECURITY] Fedora 44 Update: python-dulwich-1.2.9-1.fc44

Dulwich is a Python implementation of the Git file formats and protocols. The project is named after the village in which Mr. and Mrs. Git live in the Monty Python sketch...

python313-dulwich-1.2.7-1.1 on GA media (moderate)

python313-dulwich-1.2.7-1.1 on GA media Announcement ID: openSUSE-SU-2026:11190-1 Rating: moderate Cross-References: CVE-2015-0838 CVE-2017-16228 CVSS scores: CVE-2017-16228 SUSE : 9.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Affected Products: openSUSE Tumbleweed An update that solves 2...

OPENSUSE-SU-2026:11190-1 python313-dulwich-1.2.7-1.1 on GA media

These are all security issues fixed in the python313-dulwich-1.2.7-1.1 package on the GA media of openSUSE Tumbleweed...

EUVD-2026-36195

Dulwich's submodule path traversal in porcelain.submoduleupdate / porcelain.clonerecursesubmodules=True yields RCE via attacker-dropped .git/hooks payload...

GHSA-GFHV-VQV2-4544 Dulwich's submodule path traversal in porcelain.submodule_update / porcelain.clone(recurse_submodules=True) yields RCE via attacker-dropped .git/hooks payload

Summary dulwich.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

A flaw was found in Dulwich, a pure-Python implementation of Git file formats and protocols. This vulnerability allows a remote attacker to achieve arbitrary code execution by crafting a malicious Git submodule. When a user clones or updates a repository with such a submodule, the...