High severity · published Aug 13, 2026
CVE-2026-73622
GitPython before 3.1.55 Environment Variable Exfiltration via Remote.add()
7.5
CVSS
0.5%
EPSS
No
On KEV
Description
GitPython before 3.1.55 fails to disable environment variable expansion in Remote.create() and Submodule.add() URL handling, allowing attackers to exfiltrate secrets by supplying URLs containing variable references. Attackers can craft URLs with environment variable tokens that are expanded into .git/config and .gitmodules, then transmitted to attacker-controlled hosts during fetch or pull operations.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 44% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GI
GitPython · gitpython-developers
before 3.1.55 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-73622
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-73622
vendor-advisory
https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-94p4-4cq8-9g67
patch
https://github.com/gitpython-developers/GitPython/commit/8ac5a30519b6f4af85398b9b9d7064ff4d452da2
third-party-advisory
https://www.vulncheck.com/advisories/gitpython-before-environment-variable-exfiltration-via-remote-add
More from GitPython
9.8
CVE-2026-78676
GitPython before 3.1.59 Remote Code Execution via Config Injection
9.8
CVE-2026-67324
GitPython 3.1.50 Authentication Bypass via Joined Short Options
9.8
CVE-2026-42284
GitPython: Unsafe option check validates multi_options before shlex.split transforms it
8.8
CVE-2026-87817
GitPython before 3.1.60 Remote Code Execution via Git Directory Impersonation
8.8
CVE-2026-76221
GitPython before 3.1.58 Config Injection via option-name