CVE-2026-87818

GitPython 3.1.59 fails to restrict the --no-index option in the high-level diff API, allowing attackers to read arbitrary filesystem paths as repository operands. Attackers can combine --no-index with -I/--ignore-matching-lines to create a content-dependent Boolean oracle, repeatedly querying local files to recover single-line secrets through distinguishable success or error responses.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-whh4-5q6c-9v3x	Exploit Vendor Advisory
https://www.vulncheck.com/advisories/gitpython-3.1.59-local-file-content-oracle-via-no-index	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:gitpython_project:gitpython:*:*:*:*:*:python:*:*

History

16 Sep 2026, 15:12

Type	Values Removed	Values Added
References	~~() https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-whh4-5q6c-9v3x -~~	() https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-whh4-5q6c-9v3x - Exploit, Vendor Advisory
References	~~() https://www.vulncheck.com/advisories/gitpython-3.1.59-local-file-content-oracle-via-no-index -~~	() https://www.vulncheck.com/advisories/gitpython-3.1.59-local-file-content-oracle-via-no-index - Third Party Advisory
CPE		cpe:2.3:a:gitpython_project:gitpython::::::python::*
First Time		Gitpython Project gitpython Gitpython Project

Information

Published : 2026-09-09 12:17

Updated : 2026-09-16 15:12

NVD link : CVE-2026-87818

Mitre link : CVE-2026-87818

CVE.ORG link : CVE-2026-87818

JSON object : View

Products Affected

gitpython_project

gitpython

CWE

CWE-88

Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')

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