CVE-2026-114098
Description
A flaw was found in Dulwich. This vulnerability allows an attacker to achieve arbitrary code execution by tricking a user into restoring a stash in a specially crafted Git repository. During a stash pop operation, intermediate directory symbolic links (symlinks) are followed without adequate validation, enabling files to be written outside the intended repository working directory. By overwriting internal Git hooks or other critical files, an attacker can execute arbitrary commands on the victim's system during subsequent operations.
Statement
This vulnerability has been rated as having an Important severity because successful exploitation allows writing arbitrary files outside the repository working directory, potentially leading to arbitrary code execution. Exploitation requires user interaction to perform stash operations on a maliciously crafted Git repository containing directory symlinks. In typical Red Hat deployments, automated systems and workflows do not perform stash operations on untrusted repositories, significantly limiting real-world exposure.
Mitigation
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
Common Vulnerability Scoring System (CVSS) Score Details
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
The following CVSS metrics and score provided are preliminary and subject to review.
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 7.8 | N/A | 7.8 |
| Attack Vector | Local | N/A | Local |
| Attack Complexity | Low | N/A | Low |
| Privileges Required | None | N/A | None |
| User Interaction | Required | N/A | Required |
| Scope | Unchanged | N/A | Unchanged |
| Confidentiality | High | N/A | High |
| Integrity Impact | High | N/A | High |
| Availability Impact | High | N/A | High |
Vector
Red Hat: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
cve.org: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
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