Skip to main content

Dulwich EUVDEUVD-2026-36195

| CVE-2026-52726 HIGH
Path Traversal (CWE-22)
2026-06-10 GitHub_M GHSA-gfhv-vqv2-4544
Path Traversal Python RCE Dulwich
7.5
CVSS 3.1 · Vendor: GitHub_M
Share

Severity by source

Vendor (GitHub_M) PRIMARY
7.5 HIGH
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
vuln.today AI
8.8 HIGH

Network-delivered via malicious repo (AV:N), no auth on attacker side (PR:N), but victim must initiate the recursive clone (UI:R); resulting hook execution yields full C/I/A compromise.

3.1 AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
4.0 AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
SUSE
HIGH
qualitative
Red Hat
5.4 MEDIUM
qualitative

Primary rating from Vendor (GitHub_M).

CVSS VectorVendor: GitHub_M

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

Lifecycle Timeline

3
Patch available
Jul 02, 2026 - 19:01 EUVD
Source Code Evidence Fetched
Jun 10, 2026 - 22:53 vuln.today
Analysis Generated
Jun 10, 2026 - 22:53 vuln.today

Blast Radius

ecosystem impact
† from your stack dependencies † transitive graph · vuln.today resolves 4-path depth
  • 1 pypi packages depend on dulwich (1 direct, 0 indirect)

Ecosystem-wide dependent count for version 0.23.2.

DescriptionCVE.org

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.submodule_update, and by extension porcelain.clone(..., recurse_submodules=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 other directory inside the parent repository's .git directory) causes the attacker's submodule tree contents to be written directly into the victim's .git/hooks/ directory, preserving executable mode bits. The dropped executables are then run by any subsequent git or dulwich command that invokes the matching hook, resulting in arbitrary code execution. This is the dulwich equivalent of the upstream Git fixes for CVE-2024-32002 / CVE-2024-32004, which were never propagated into dulwich's separately implemented submodule porcelain. Version 1.2.5 patches the issue.

Articles & Coverage 1

News 7 New Python Vulnerabilities - 1 Critical, 6 High Severity Jun 11, 2026

AnalysisAI

Arbitrary code execution in Dulwich (pure-Python Git implementation) versions 0.23.2 through 1.2.4 allows a malicious upstream repository to drop executable files into a victim's .git/hooks/ directory during a recursive clone or submodule update. When the victim subsequently runs any git or dulwich command that invokes the planted hook, the attacker's code executes with the victim's privileges. No public exploit identified at time of analysis, though the technique mirrors the well-documented upstream Git flaws CVE-2024-32002 and CVE-2024-32004.

Technical ContextAI

Dulwich is a pure-Python reimplementation of Git's file formats and wire protocols, used by tools like Bazaar, GitPython alternatives, and various build/CI systems that prefer avoiding a native git dependency (CPE cpe:2.3:a:jelmer:dulwich). The flaw (CWE-22, Path Traversal) lives in dulwich.porcelain.submodule_update, which materializes submodules using the path field from a crafted .gitmodules and the matching tree gitlink without validating that the path stays inside the working tree. Because dulwich reimplemented Git's submodule porcelain independently, the hardening upstream Git added for CVE-2024-32002 / CVE-2024-32004 (rejecting submodule paths that traverse into .git or escape the work tree) was never carried over, so a path of '.git/hooks' is accepted verbatim and the submodule's tree contents - executable bits preserved - are written into the live hooks directory.

RemediationAI

Vendor-released patch: dulwich 1.2.5 (https://github.com/jelmer/dulwich/releases/tag/dulwich-1.2.5) - upgrade immediately, which is the primary remediation as it adds submodule path validation rejecting entries that resolve inside .git or above the work tree. If an immediate upgrade is not possible, avoid calling porcelain.clone with recurse_submodules=True and avoid porcelain.submodule_update against any repository whose .gitmodules content is not fully trusted; the trade-off is that submodules must then be initialized manually or via the system git binary (which already carries the CVE-2024-32002/32004 fixes). For CI/build systems that ingest third-party repositories, route recursive submodule operations through native git instead of dulwich until the upgrade is rolled out, and audit existing checkout caches for unexpected files in .git/hooks/ as a compromise indicator. Also review the bundled fixes in 1.2.5 for CVE-2026-42305, CVE-2026-42563, and CVE-2026-47712, which apply to the same release.

More in Python

View all
CVE-2025-24016 CRITICAL POC
9.9 Feb 10

Wazuh SIEM platform versions 4.4.0 through 4.9.0 contain an unsafe deserialization vulnerability in the DistributedAPI t
CVE-2025-27520 CRITICAL POC
9.8 Apr 04

BentoML version 1.4.2 and earlier contains an unauthenticated remote code execution vulnerability through insecure deser
CVE-2025-2945 CRITICAL POC
9.9 Apr 03

pgAdmin 4 contains critical remote code execution vulnerabilities in the Query Tool download and Cloud Deployment endpoi
CVE-2013-5093 MEDIUM POC
6.8 Sep 27

The renderLocalView function in render/views.py in graphite-web in Graphite 0.9.5 through 0.9.10 uses the pickle Python

CVE-2025-32375 CRITICAL POC
9.8 Apr 09

BentoML is a Python library for building online serving systems optimized for AI apps and model inference. Rated critica
CVE-2014-0224 HIGH POC
7.4 Jun 05

OpenSSL before 0.9.8za, 1.0.0 before 1.0.0m, and 1.0.1 before 1.0.1h does not properly restrict processing of ChangeCiph
CVE-2024-21644 HIGH POC
7.5 Jan 08

pyLoad download manager version prior to 0.5.0b3.dev77 exposes the Flask SECRET_KEY through an unauthenticated endpoint.
CVE-2017-9462 HIGH POC
8.8 Jun 06

In Mercurial before 4.1.3, "hg serve --stdio" allows remote authenticated users to launch the Python debugger, and conse
CVE-2026-39987 CRITICAL POC
9.3 Apr 08

Unauthenticated remote code execution in Marimo ≤0.20.4 allows attackers to execute arbitrary system commands via the `/
CVE-2024-21645 MEDIUM POC
5.3 Jan 08

pyLoad is the free and open-source Download Manager written in pure Python. Rated medium severity (CVSS 5.3), this vulne
CVE-2026-33017 CRITICAL POC
9.3 Mar 17

Langflow (a visual LLM pipeline builder) contains a critical unauthenticated code execution vulnerability (CVE-2026-3301
CVE-2026-55255 HIGH POC
8.4 Jun 19

Cross-user flow execution in Langflow (< 1.9.1) lets any authenticated API-key holder run another user's flow by passing

Same weakness CWE-22 – Path Traversal

View all
CVE-2019-3396 CRITICAL POC
9.8
CVE-2019-19781 CRITICAL POC
9.8
CVE-2020-5902 CRITICAL POC
9.8
CVE-2021-40444 HIGH POC
8.8
CVE-2021-27065 HIGH POC
7.8
CVE-2019-11510 CRITICAL POC
10.0
CVE-2018-13379 CRITICAL POC
9.1
CVE-2015-0016 HIGH POC
7.8

Same technique Path Traversal

View all
CVE-2025-64446 CRITICAL POC
9.8
CVE-2015-0016 HIGH POC
7.8
CVE-2016-0752 HIGH POC
7.5
CVE-2024-13159 CRITICAL POC
9.8
CVE-2024-13160 CRITICAL POC
9.8
CVE-2024-13161 CRITICAL POC
9.8
CVE-2014-0780 CRITICAL POC
9.8
CVE-2024-48248 HIGH POC
8.6

Vendor StatusVendor

SUSE

Severity: Important
Product Status
SUSE Linux Enterprise Desktop 15 SP7 Not-Affected
SUSE Linux Enterprise High Performance Computing 12 Not-Affected
SUSE Linux Enterprise High Performance Computing 15 SP7 Not-Affected
SUSE Linux Enterprise Module for Basesystem 15 SP7 Not-Affected
SUSE Linux Enterprise Server 15 SP7 Not-Affected

Share

EUVD-2026-36195 vulnerability details – vuln.today
Back

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy