CVE-2020-10977Known exploitationPublic exploitNetwork attack vector

Authenticated file read via traversal during issue moves

Published Apr 8, 2020 · Updated Aug 4, 2024

Path traversal in GitLab CE and EE 8.5 through 12.9 allows remote authenticated users to read server files by moving a crafted issue. The issue-move flow processes traversal segments in an issue description's upload link without confining the resolved path to project uploads. An account able to create projects and issues can expose server-readable secrets, which disclosed exploit chains use to achieve code execution.

CVSS severity5.5
Medium
EPSS probability42.74%
Next 30 days · Sep 16, 2026
Known exploitationReported
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in GitLab CE and EE 8.5 through 12.9 allows remote authenticated users to read server files by moving a crafted issue. The issue-move flow processes traversal segments in an issue description's upload link without confining the resolved path to project uploads. An account able to create projects and issues can expose server-readable secrets, which disclosed exploit chains use to achieve code execution.

The record

CVE
CVE-2020-10977
Published
Apr 8, 2020
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-22, T1005
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 8, 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

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
2.1NIST NVDAV:L/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
Privilegesauthenticated
Known exploitationReported
Public exploitPublished

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1005Data from Local System

Public exploit references

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

Reported exploitation

Technologies

Your stack

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Your stack

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