CVE-2020-10081Network attack vector

Authenticated LFS object disclosure via unchecked import linking

Published Mar 13, 2020 · Updated Aug 4, 2024

Incorrect access control in GitLab before 12.8.2 allows remote authenticated users to read LFS objects owned by other users. LFS import finalization accepts an attacker-supplied object ID and size, then links a matching object from shared storage without verifying ownership. A valid account and project-import permission are required, and the consequence is limited to disclosure of LFS object contents already stored on the instance.

CVSS severity6.5
Medium
EPSS probability0.95%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect access control in GitLab before 12.8.2 allows remote authenticated users to read LFS objects owned by other users. LFS import finalization accepts an attacker-supplied object ID and size, then links a matching object from shared storage without verifying ownership. A valid account and project-import permission are required, and the consequence is limited to disclosure of LFS object contents already stored on the instance.

The record

CVE
CVE-2020-10081
Published
Mar 13, 2020
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 13, 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

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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 privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
4.0NIST NVDAV:N/AC:L/Au:S/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1190Exploit Public-Facing Application

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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