CVE-2020-9708: GHSL-2020-133: Insufficient validation of user input in resolveRepositoryPath function

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.9% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2020-08-14 · updated 2026-06-17
Weakness: CWE-24

Description

The resolveRepositoryPath function doesn't properly validate user input and a malicious user may traverse to any valid Git repository outside the repoRoot. This issue may lead to unauthorized access of private Git repositories as long as the malicious user knows or brute-forces the location of the repository.

Affected products

Adobe Git-Server: before 1.3.1 — fixed in 1.3.1

How to fix

Upgrade to a fixed version: Adobe Git-Server 1.3.1. Check the vendor advisory for mitigations.

References

https://github.com/adobe/git-server/security/advisories/GHSA-cgj4-x2hh-2x93
https://github.com/adobe/git-server/security/advisories/GHSA-cgj4-x2hh-2x93

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