CVE-2020-11008Public exploitNetwork attack vector

Credential theft via schemeless URL parsing

Published Apr 21, 2020 · Updated Aug 4, 2024

Improper URL validation in Git allows remote attackers to steal a stored credential by supplying a malformed clone URL. credential_from_url_gently accepts URLs without a scheme and leaves host and protocol blank, so credential helpers can treat the query as matching any stored credential. Exploitation requires an affected release and a helper other than Git Credential Manager for Windows; automated submodule or package cloning can hide the suspicious URL and disclose an unspecified credential to the attacker's host.

CVSS severity4.0
Medium
EPSS probability3.90%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper URL validation in Git allows remote attackers to steal a stored credential by supplying a malformed clone URL. credential_from_url_gently accepts URLs without a scheme and leaves host and protocol blank, so credential helpers can treat the query as matching any stored credential. Exploitation requires an affected release and a helper other than Git Credential Manager for Windows; automated submodule or package cloning can hide the suspicious URL and disclose an unspecified credential to the attacker's host.

The record

CVE
CVE-2020-11008
Published
Apr 21, 2020
Updated
Aug 4, 2024
Vendor
Git
Product
Git
Classifications
CWE-522, CWE-20, T1555
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 21, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 2.17.5
  2. Affected versionversion=>= 2.18.0, < 2.18.4
  3. Affected versionversion=>= 2.19.0, 2.19.5
  4. Affected versionversion=>= 2.20.0, < 2.20.4
  5. Affected versionversion=>= 2.21.0, < 2.21.3
  6. Affected versionversion=>= 2.22.0, < 2.22.4
  7. Affected versionversion=>= 2.23.0, < 2.23.3
  8. Affected versionversion=>= 2.24.0, < 2.24.3
  9. Affected versionversion=>= 2.25.0, < 2.25.4
  10. Affected versionversion=>= 2.26.0, < 2.26.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Git · Gitversion=< 2.17.5; version=>= 2.18.0, < 2.18.4; version=>= 2.19.0, 2.19.5; version=>= 2.20.0, < 2.20.4; version=>= 2.21.0, < 2.21.3; version=>= 2.22.0, < 2.22.4; version=>= 2.23.0, < 2.23.3; version=>= 2.24.0, < 2.24.3; version=>= 2.25.0, < 2.25.4; version=>= 2.26.0, < 2.26.2

Published CVSS scores

4.0GitHub, Inc.CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N
7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
5.0NIST NVDAV:N/AC:L/Au:N/C:P/I:N/A:N

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 exploitPublished

Weakness, pattern, technique

CWE-522Insufficiently Protected Credentials
CWE-20Improper Input Validation
T1555Credentials from Password Stores

Public exploit references

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

Technologies

Your stack

See the directory against your own environment.

Your stack

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