Summary
GitLab heeft meerdere kwetsbaarheden verholpen in GitLab Community Edition en Enterprise Edition (EE) versies variërend van 12.0 tot voor 19.0.2, inclusief belangrijke releases zoals 17.x, 18.10.8, 18.11.5 en 19.0.2.
Details
Interpretaties
De kwetsbaarheden betreffen verschillende onderdelen van GitLab CE & EE. Geauthenticeerde gebruikers met developer-permissies kunnen via de Analytics Dashboard interface willekeurige client-side code uitvoeren door onvoldoende sanitatie van gebruikersinput. Op de CI/CD Catalog pagina kan een denial of service (DoS) worden veroorzaakt door onjuiste inputsanitatie, waardoor de pagina onbeschikbaar raakt. Een DoS kan ook optreden door het uploaden van speciaal vervaardigde bestanden die leiden tot resource-uitputting, wat de GitLab service kan laten crashen of onresponsief maken. Verder kunnen geauthenticeerde gebruikers ongeautoriseerde toegang krijgen tot vertrouwelijke issuegegevens door onjuiste autorisatiecontroles. Developer-gebruikers kunnen verborgen merge requests wijzigen door gebrekkige autorisatie, en ook merge request diff views manipuleren door onjuiste verwerking van bestandsnamen, wat wijzigingen kan verbergen tijdens code reviews. Gebruikers met de Security Manager rol kunnen projectbeveiligingsinstellingen beheren ondanks dat deze functie uitgeschakeld is, door onjuiste autorisatie. Binnen Group SAML identity management kunnen group Owners de controle over andere groepsleden overnemen door onjuiste autorisatiecontroles. Ongeautoriseerde e-mailadressen kunnen aan accounts worden toegevoegd via onvoldoende inputsanitatie in groepsinstellingen. Tijdens repository-import kan onvoldoende validatie van secundaire URL's leiden tot het uitlezen van willekeurige bestanden op de Gitaly-server en toegang tot interne netwerkbronnen. Ten slotte kan een niet-geauthenticeerde gebruiker de GitLab Support Bot imiteren door het injecteren van arbitraire inhoud in Service Desk e-mailantwoorden, veroorzaakt door onjuiste verwerking van e-mailsjablonen.
Oplossingen
GitLab heeft updates uitgebracht om deze kwetsbaarheden in GitLab Enterprise Edition te verhelpen. Zie bijgevoegde referenties voor meer informatie.
Vulnerabilities 12
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High 8.7
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLab
GitLab has remediated an issue in GitLab EE affecting all versions from 17.1 before 18.10.8, 18.11 before 18.11.5, and 19.0 before 19.0.2 that under certain conditions could have allowed an authenticated user with developer-role permissions to execute arbitra…
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High 8.7CVE-2026-6552 Rejected
This CVE ID has been rejected. GitLab determined that the reported behavior does not constitute a vulnerability: linkin…
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High 7.5
Allocation of Resources Without Limits or Throttling in GitLab
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 12.10 before 18.10.8, 18.11 before 18.11.5, and 19.0 before 19.0.2 that under certain conditions could have allowed an unauthenticated user to cause denial of service due to improper i…
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High 7.3
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLab
GitLab has remediated an issue in GitLab EE affecting all versions from 13.1.4 before 18.10.8, 18.11 before 18.11.5, and 19.0 before 19.0.2 that under certain conditions could have allowed an authenticated user to add unauthorized email addresses to a targete…
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Medium 6.5
Allocation of Resources Without Limits or Throttling in GitLab
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 17.10 before 18.10.8, 18.11 before 18.11.5, and 19.0 before 19.0.2 that under certain conditions could have allowed an authenticated user to cause denial of service due to uncontrolled…
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Medium 5.4
Incorrect Authorization in GitLab
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 15.10 before 18.10.8, 18.11 before 18.11.5, and 19.0 before 19.0.2 that under certain conditions could have allowed an authenticated user with developer-role permissions to modify hidd…
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Medium 5.3
Server-Side Request Forgery (SSRF) in GitLab
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.10 before 18.10.8, 18.11 before 18.11.5, and 19.0 before 19.0.2 that under certain conditions could have allowed an authenticated user to read arbitrary files from the Gitaly server…
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Medium 4.3
Improper Restriction of Rendered UI Layers or Frames in GitLab
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 17.0 before 18.10.8, 18.11 before 18.11.5, and 19.0 before 19.0.2 that could have allowed an authenticated user to cause denial of service on the CI/CD Catalog page due to improper san…
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Medium 4.3
Incorrect Authorization in GitLab
GitLab has remediated an issue in GitLab EE affecting all versions from 13.9 before 18.10.8, 18.11 before 18.11.5, and 19.0 before 19.0.2 that under certain conditions could have allowed an authenticated user with Security Manager-role permissions to manage p…
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Low 3.7
Authorization Bypass Through User-Controlled Key in GitLab
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 15.9 before 18.10.8, 18.11 before 18.11.5, and 19.0 before 19.0.2 that under certain conditions could have allowed an authenticated user with developer-role permissions to hide changes…
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Low 3.1
Incorrect Authorization in GitLab
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 12.0 before 18.10.8, 18.11 before 18.11.5, and 19.0 before 19.0.2 that under certain conditions could have allowed an authenticated user to access confidential issue details due to inc…
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Low 2.6
Improper Neutralization of Substitution Characters in GitLab
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 15.9 before 18.10.8, 18.11 before 18.11.5, and 19.0 before 19.0.2 that under certain conditions, could have allowed an unauthenticated user to impersonate the GitLab Support Bot and in…
Revision history
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#1.0.0
Initiele versie
References
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Reference
https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-0-2-released/