CVE-2026-73622

GitPython before 3.1.55 Environment Variable Exfiltration via Remote.add()

HIGH
7.5
CVSS Score
Published: August 13, 2026 at 11:28 AM UTC
Updated: October 24, 2026 at 03:10 PM UTC
2 products affected across 2 vendorsGitpythonGitPython

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Severity
HIGH7.5
Exploit prediction
EPSS 0.5%
SSVC
PoC

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

All versionsv < 3.1.55
Affected range stops below 3.1.55, so it looks safe — our inference, not a vendor statement
0 ≤ v < 3.1.55
Vendor states this is fixed in 3.1.55 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCPoCAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGHVulnCheck
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-200

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