CVE-2026-52726 (GCVE-0-2026-52726)
Vulnerability from cvelistv5 – Published: 2026-06-10 22:13 – Updated: 2026-06-11 12:55
VLAI
EPSS
VEX
Title
Dulwich's submodule path traversal in porcelain.submodule_update / porcelain.clone(recurse_submodules=True) yields RCE via attacker-dropped .git/hooks payload
Summary
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.
Severity
7.5 (High)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/jelmer/dulwich/security/adviso… | x_refsource_CONFIRM |
| https://github.com/jelmer/dulwich/releases/tag/du… | x_refsource_MISC |
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"url": "https://github.com/jelmer/dulwich/security/advisories/GHSA-gfhv-vqv2-4544"
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"discovery": "UNKNOWN"
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"current_release_date": "2026-07-08T14:21:34+00:00",
"cve": "CVE-2026-52726",
"id": "CVE-2026-52726",
"initial_release_date": "2026-06-10T22:13:33.320000+00:00",
"product_status:known_affected": "10",
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"source": "Red Hat CSAF VEX",
"status": "final",
"title": "dulwich: Dulwich: Arbitrary code execution via crafted Git submodules",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-52726.json",
"version": "3"
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"cve": "CVE-2026-52726",
"id": "CVE-2026-52726",
"initial_release_date": "2026-06-12T02:25:02Z",
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"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2026-52726",
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}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
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