CVE-2023-1071Network attack vector

Authenticated epic issue removal via missing authorization

Published Apr 5, 2023 · Updated Feb 10, 2025

Incorrect authorization in GitLab 15.5 through 15.8.4, 15.9 through 15.9.3, and 15.10.0 allows remote authenticated users to unlink epic issues. The issue-to-epic removal path fails to enforce the authorization required to change epic membership, allowing a lower-privileged account to alter the relationship. A logged-in account with low privileges and access to the affected issue can remove its epic association, but cannot read confidential data or interrupt the service through this flaw.

CVSS severity3.1
Low
EPSS probability0.41%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect authorization in GitLab 15.5 through 15.8.4, 15.9 through 15.9.3, and 15.10.0 allows remote authenticated users to unlink epic issues. The issue-to-epic removal path fails to enforce the authorization required to change epic membership, allowing a lower-privileged account to alter the relationship. A logged-in account with low privileges and access to the affected issue can remove its epic association, but cannot read confidential data or interrupt the service through this flaw.

The record

CVE
CVE-2023-1071
Published
Apr 5, 2023
Updated
Feb 10, 2025
Vendor
GitLab
Product
GitLab
Classifications
CWE-400, CWE-863, T1565.001
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 5, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 10, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

  1. Affected versionversion=>=15.10, <15.10.1
  2. Affected versionversion=>=15.5, <15.8.5
  3. Affected versionversion=>=15.9, <15.9.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

GitLab · GitLabversion=>=15.10, <15.10.1; version=>=15.5, <15.8.5; version=>=15.9, <15.9.4

Published CVSS scores

4.3NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
3.1GitLab Inc.CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/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 exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-400Uncontrolled Resource Consumption
CWE-863Incorrect Authorization
T1565.001Stored Data Manipulation

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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