CVE-2021-29417Network attack vector

Remote code execution via unsanitized Git paths

Published Mar 29, 2021 · Updated Aug 3, 2024

Path traversal in gitjacker before 0.1.0 allows remote attackers to execute arbitrary code via a crafted remote .git directory. The downloadFile routine joined remotely supplied Git paths into the reconstructed .git tree without confining them, then Git reset and checkout consumed that tree. Exploitation requires gitjacker to process attacker-controlled Git metadata, and resulting commands run with the gitjacker process's privileges.

CVSS severity9.8
Critical
EPSS probability3.77%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in gitjacker before 0.1.0 allows remote attackers to execute arbitrary code via a crafted remote .git directory. The downloadFile routine joined remotely supplied Git paths into the reconstructed .git tree without confining them, then Git reset and checkout consumed that tree. Exploitation requires gitjacker to process attacker-controlled Git metadata, and resulting commands run with the gitjacker process's privileges.

The record

CVE
CVE-2021-29417
Published
Mar 29, 2021
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-22, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 29, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.5NIST NVDAV:N/AC:L/Au:N/C:P/I:P/A:P
9.8GitHubCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1203Exploitation for Client Execution

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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