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    CVE-2026-76221

    GitPython before 3.1.58 contains a config-name injection vulnerability in the option-name validator that allows attackers to forge arbitrary git-config directives by injecting equals signs, hash symbols, and whitespace into option names. Attackers can inject malicious option names like 'sshCommand = touch /tmp/RCE #' to execute arbitrary commands via core.sshCommand or core.hooksPath on the next git operation.

    Published:Aug 19, 2026
    Last Modified:Sep 2, 2026
    EPS:Aug 19, 2026
    EPSS Score:0.00485
    CVSS Score:8.8

    Affected Products

    Vendor
    Gitpython Project
    Product
    Gitpython

    Exploits

    https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-jm78-9fvv-mhgr

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-10 Buffer Overflow via Environment Variables
    CAPEC-101 Server Side Include (SSI) Injection
    CAPEC-105 HTTP Request Splitting
    CAPEC-108 Command Line Execution through SQL Injection
    CAPEC-120 Double Encoding
    CAPEC-13 Subverting Environment Variable Values
    CAPEC-135 Format String Injection
    CAPEC-14 Client-side Injection-induced Buffer Overflow
    CAPEC-15 Command Delimiters
    CAPEC-24 Filter Failure through Buffer Overflow
    CAPEC-250 XML Injection
    CAPEC-267 Leverage Alternate Encoding
    CAPEC-273 HTTP Response Smuggling
    CAPEC-28 Fuzzing
    CAPEC-3 Using Leading 'Ghost' Character Sequences to Bypass Input Filters
    CAPEC-34 HTTP Response Splitting
    CAPEC-42 MIME Conversion
    CAPEC-43 Exploiting Multiple Input Interpretation Layers
    CAPEC-45 Buffer Overflow via Symbolic Links
    CAPEC-46 Overflow Variables and Tags
    CAPEC-47 Buffer Overflow via Parameter Expansion
    CAPEC-51 Poison Web Service Registry
    CAPEC-52 Embedding NULL Bytes
    CAPEC-53 Postfix, Null Terminate, and Backslash
    CAPEC-6 Argument Injection
    CAPEC-64 Using Slashes and URL Encoding Combined to Bypass Validation Logic
    CAPEC-67 String Format Overflow in syslog()
    CAPEC-7 Blind SQL Injection
    CAPEC-71 Using Unicode Encoding to Bypass Validation Logic
    CAPEC-72 URL Encoding
    CAPEC-76 Manipulating Web Input to File System Calls
    CAPEC-78 Using Escaped Slashes in Alternate Encoding
    CAPEC-79 Using Slashes in Alternate Encoding
    CAPEC-8 Buffer Overflow in an API Call
    CAPEC-80 Using UTF-8 Encoding to Bypass Validation Logic
    CAPEC-83 XPath Injection
    CAPEC-84 XQuery Injection
    CAPEC-88 OS Command Injection
    CAPEC-9 Buffer Overflow in Local Command-Line Utilities

    Related CVEs

    CVE-2026-87819 (CVSS 8.7) — GitPython before 3.1.60 contains a regular expression denial of service vulnerability in Actor.name_email_rege…
    CVE-2026-87818 (CVSS 7.1) — GitPython 3.1.59 fails to restrict the --no-index option in the high-level diff API, allowing attackers to rea…
    CVE-2026-87817 (CVSS 8.7) — GitPython before 3.1.60 fails to properly validate the git directory location, allowing attackers to impersona…
    CVE-2026-78679 (CVSS 7.1) — GitPython before 3.1.59 contains an arbitrary file read vulnerability in TagReference.create() where a positio…
    CVE-2026-78678 (CVSS 7.1) — GitPython versions before 3.1.59 contain an incomplete denylist in the unsafe_git_revision_options guard that …
    CVE-2026-78677 (CVSS 8.7) — GitPython before 3.1.59 omits --separate-git-dir from unsafe_git_clone_options, allowing attackers to create a…
    CVE-2026-78676 (CVSS 9.3) — GitPython before 3.1.59 fails to safely re-serialize multi-line git-config values during write operations, cor…
    CVE-2026-78675 (CVSS 8.6) — GitPython before 3.1.59 fails to disable merge_includes when parsing .gitmodules, allowing attackers to disclo…
    CVE-2026-76222 (CVSS 8.4) — GitPython before 3.1.58 fails to validate submodule names from .gitmodules files, allowing attackers to create…
    CVE-2026-76220 (CVSS 8.7) — GitPython before 3.1.58 contains a command execution vulnerability in the check_unsafe_options guard that can …

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High