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WID-SEC-W-2026-0847
Vulnerability from csaf_certbund - Published: 2026-03-24 23:00 - Updated: 2026-03-25 23:00Summary
GitLab: Mehrere Schwachstellen
Severity
Hoch
Notes
Das BSI ist als Anbieter für die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch dafür verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgfältig im Einzelfall zu prüfen.
Produktbeschreibung: GitLab ist eine Webanwendung zur Versionsverwaltung für Softwareprojekte auf Basis von git.
Angriff: Ein Angreifer kann mehrere Schwachstellen in GitLab ausnutzen, um Dateien zu manipulieren, um Sicherheitsvorkehrungen zu umgehen, um einen Denial of Service Angriff durchzuführen, um Informationen offenzulegen, und um einen Cross-Site Scripting Angriff durchzuführen.
Betroffene Betriebssysteme: - Linux
- Sonstiges
- UNIX
References
{
"document": {
"aggregate_severity": {
"text": "hoch"
},
"category": "csaf_base",
"csaf_version": "2.0",
"distribution": {
"tlp": {
"label": "WHITE",
"url": "https://www.first.org/tlp/"
}
},
"lang": "de-DE",
"notes": [
{
"category": "legal_disclaimer",
"text": "Das BSI ist als Anbieter f\u00fcr die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch daf\u00fcr verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgf\u00e4ltig im Einzelfall zu pr\u00fcfen."
},
{
"category": "description",
"text": "GitLab ist eine Webanwendung zur Versionsverwaltung f\u00fcr Softwareprojekte auf Basis von git.",
"title": "Produktbeschreibung"
},
{
"category": "summary",
"text": "Ein Angreifer kann mehrere Schwachstellen in GitLab ausnutzen, um Dateien zu manipulieren, um Sicherheitsvorkehrungen zu umgehen, um einen Denial of Service Angriff durchzuf\u00fchren, um Informationen offenzulegen, und um einen Cross-Site Scripting Angriff durchzuf\u00fchren.",
"title": "Angriff"
},
{
"category": "general",
"text": "- Linux\n- Sonstiges\n- UNIX",
"title": "Betroffene Betriebssysteme"
}
],
"publisher": {
"category": "other",
"contact_details": "csaf-provider@cert-bund.de",
"name": "Bundesamt f\u00fcr Sicherheit in der Informationstechnik",
"namespace": "https://www.bsi.bund.de"
},
"references": [
{
"category": "self",
"summary": "WID-SEC-W-2026-0847 - CSAF Version",
"url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-0847.json"
},
{
"category": "self",
"summary": "WID-SEC-2026-0847 - Portal Version",
"url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-0847"
},
{
"category": "external",
"summary": "GitLab Patch Release vom 2026-03-24",
"url": "https://about.gitlab.com/releases/2026/03/25/patch-release-gitlab-18-10-1-released/"
}
],
"source_lang": "en-US",
"title": "GitLab: Mehrere Schwachstellen",
"tracking": {
"current_release_date": "2026-03-25T23:00:00.000+00:00",
"generator": {
"date": "2026-03-26T08:02:16.107+00:00",
"engine": {
"name": "BSI-WID",
"version": "1.5.0"
}
},
"id": "WID-SEC-W-2026-0847",
"initial_release_date": "2026-03-24T23:00:00.000+00:00",
"revision_history": [
{
"date": "2026-03-24T23:00:00.000+00:00",
"number": "1",
"summary": "Initiale Fassung"
},
{
"date": "2026-03-25T23:00:00.000+00:00",
"number": "2",
"summary": "Referenz(en) aufgenommen: EUVD-2026-15481, EUVD-2026-15804, EUVD-2026-15803, EUVD-2026-15809, EUVD-2026-15811, EUVD-2026-15935, EUVD-2026-15937, EUVD-2025-208993, EUVD-2025-208991, EUVD-2025-208995, EUVD-2026-15484"
}
],
"status": "final",
"version": "2"
}
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{
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"product": {
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"product_id": "T052116-fixed",
"product_identification_helper": {
"cpe": "cpe:/a:gitlab:gitlab:18.10.1"
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{
"category": "product_version_range",
"name": "\u003c18.9.3",
"product": {
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"name": "18.9.3",
"product": {
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"product_id": "T052117-fixed",
"product_identification_helper": {
"cpe": "cpe:/a:gitlab:gitlab:18.9.3"
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"title": "CVE-2025-14595"
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"title": "CVE-2026-2745"
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}
CVE-2025-13078 (GCVE-0-2025-13078)
Vulnerability from cvelistv5 – Published: 2026-03-25 16:35 – Updated: 2026-03-25 17:02
VLAI?
EPSS
Title
Improper Validation of Specified Quantity in Input in GitLab
Summary
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 16.10 before 18.8.7, 18.9 before 18.9.3, and 18.10 before 18.10.1 that could have allowed an authenticated user to cause a denial of service due to excessive resource consumption when processing certain webhook configuration inputs.
Severity ?
6.5 (Medium)
CWE
- CWE-1284 - Improper Validation of Specified Quantity in Input
Assigner
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
Impacted products
Credits
Thanks [lucky_luke](https://hackerone.com/lucky_luke) for reporting this vulnerability through our HackerOne bug bounty program
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CVE-2026-1724 (GCVE-0-2026-1724)
Vulnerability from cvelistv5 – Published: 2026-03-25 16:34 – Updated: 2026-03-27 14:59
VLAI?
EPSS
Title
Missing Authentication for Critical Function in GitLab
Summary
GitLab has remediated an issue in GitLab EE affecting all versions from 18.5 before 18.8.7, 18.9 before 18.9.3, and 18.10 before 18.10.1 that could have allowed an unauthenticated user to access API tokens of self-hosted AI models due to improper access control.
Severity ?
6.8 (Medium)
CWE
- CWE-306 - Missing Authentication for Critical Function
Assigner
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
Impacted products
Credits
Thanks [maksyche](https://hackerone.com/maksyche) for reporting this vulnerability through our HackerOne bug bounty program
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CVE-2026-2745 (GCVE-0-2026-2745)
Vulnerability from cvelistv5 – Published: 2026-03-25 16:34 – Updated: 2026-03-26 03:55
VLAI?
EPSS
Title
Authentication Bypass Using an Alternate Path or Channel in GitLab
Summary
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 7.11 before 18.8.7, 18.9 before 18.9.3, and 18.10 before 18.10.1 that could have allowed an unauthenticated user to bypass WebAuthn two-factor authentication and gain unauthorized access to user accounts due to inconsistent input validation in the authentication process.
Severity ?
6.8 (Medium)
CWE
- CWE-288 - Authentication Bypass Using an Alternate Path or Channel
Assigner
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
Impacted products
Credits
Thanks [a0xnirudh](https://hackerone.com/a0xnirudh) for reporting this vulnerability through our HackerOne bug bounty program
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CVE-2025-14595 (GCVE-0-2025-14595)
Vulnerability from cvelistv5 – Published: 2026-03-25 16:34 – Updated: 2026-03-27 14:58
VLAI?
EPSS
Title
Missing Authorization in GitLab
Summary
GitLab has remediated an issue in GitLab EE affecting all versions from 18.6 before 18.8.7, 18.9 before 18.9.3, and 18.10 before 18.10.1 that under certain conditions could have allowed an authenticated user with Planner role to view security category metadata and attributes in group security configuration due to improper access control
Severity ?
4.3 (Medium)
CWE
- CWE-862 - Missing Authorization
Assigner
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
Impacted products
Credits
Thanks [kamikaze1337](https://hackerone.com/kamikaze1337) for reporting this vulnerability through our HackerOne bug bounty program
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CVE-2026-2995 (GCVE-0-2026-2995)
Vulnerability from cvelistv5 – Published: 2026-03-25 16:33 – Updated: 2026-03-26 13:20
VLAI?
EPSS
Title
Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) in GitLab
Summary
GitLab has remediated an issue in GitLab EE affecting all versions from 15.4 before 18.8.7, 18.9 before 18.9.3, and 18.10 before 18.10.1 that could have allowed an authenticated user to add email addresses to targeted user accounts due to improper sanitization of HTML content.
Severity ?
7.7 (High)
CWE
- CWE-80 - Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)
Assigner
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
Impacted products
Credits
Thanks [a_m_a_m](https://hackerone.com/a_m_a_m) for reporting this vulnerability through our HackerOne bug bounty program
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CVE-2025-13436 (GCVE-0-2025-13436)
Vulnerability from cvelistv5 – Published: 2026-03-25 16:34 – Updated: 2026-03-25 17:03
VLAI?
EPSS
Title
Allocation of Resources Without Limits or Throttling in GitLab
Summary
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 13.7 before 18.8.7, 18.9 before 18.9.3, and 18.10 before 18.10.1 that could have allowed an authenticated user to cause a denial of service due to excessive resource consumption when handling certain CI-related inputs.
Severity ?
6.5 (Medium)
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
Impacted products
Credits
Thanks [a92847865](https://hackerone.com/a92847865) for reporting this vulnerability through our HackerOne bug bounty program
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CVE-2026-2726 (GCVE-0-2026-2726)
Vulnerability from cvelistv5 – Published: 2026-03-25 16:34 – Updated: 2026-03-25 17:14
VLAI?
EPSS
Title
Incorrect Authorization in GitLab
Summary
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 11.10 before 18.8.7, 18.9 before 18.9.3, and 18.10 before 18.10.1 that could have allowed an authenticated user to perform unauthorized actions on merge requests in other projects due to improper access control during cross-repository operations.
Severity ?
4.3 (Medium)
CWE
- CWE-863 - Incorrect Authorization
Assigner
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
Impacted products
Credits
Thanks [pkkr](https://hackerone.com/pkkr) for reporting this vulnerability through our HackerOne bug bounty program
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CVE-2026-4363 (GCVE-0-2026-4363)
Vulnerability from cvelistv5 – Published: 2026-03-25 15:04 – Updated: 2026-03-25 19:57
VLAI?
EPSS
Title
Incorrect Authorization in GitLab
Summary
GitLab has remediated an issue in GitLab EE affecting all versions from 18.1 before 18.8.7, 18.9 before 18.9.3, and 18.10 before 18.10.1 that under certain conditions could have allowed an authenticated user to gain unauthorized access to resources due to improper caching of authorization decisions.
Severity ?
CWE
- CWE-863 - Incorrect Authorization
Assigner
References
Impacted products
Credits
This vulnerability has been discovered internally by GitLab team member Fred de Gier
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CVE-2026-2973 (GCVE-0-2026-2973)
Vulnerability from cvelistv5 – Published: 2026-03-25 16:34 – Updated: 2026-03-26 17:24
VLAI?
EPSS
Title
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLab
Summary
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 17.7 before 18.8.7, 18.9 before 18.9.3, and 18.10 before 18.10.1 that could have allowed an authenticated user to execute arbitrary JavaScript in a user's browser due to improper sanitization of entity-encoded content in Mermaid diagrams.
Severity ?
5.4 (Medium)
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
Impacted products
Credits
Thanks [go7f0](https://hackerone.com/go7f0) for reporting this vulnerability through our HackerOne bug bounty program
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CVE-2026-3857 (GCVE-0-2026-3857)
Vulnerability from cvelistv5 – Published: 2026-03-25 16:33 – Updated: 2026-03-26 13:20
VLAI?
EPSS
Title
Cross-Site Request Forgery (CSRF) in GitLab
Summary
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 17.10 before 18.8.7, 18.9 before 18.9.3, and 18.10 before 18.10.1 that could have allowed an unauthenticated user to execute arbitrary GraphQL mutations on behalf of authenticated users due to insufficient CSRF protection.
Severity ?
8.1 (High)
CWE
- CWE-352 - Cross-Site Request Forgery (CSRF)
Assigner
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
Impacted products
Credits
Thanks [ahacker1](https://hackerone.com/ahacker1) for reporting this vulnerability through our HackerOne bug bounty program
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CVE-2026-2370 (GCVE-0-2026-2370)
Vulnerability from cvelistv5 – Published: 2026-03-29 23:33 – Updated: 2026-03-30 15:02
VLAI?
EPSS
Title
Improper Handling of Parameters in GitLab
Summary
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 14.3 before 18.8.7, 18.9 before 18.9.3, and 18.10 before 18.10.1 affecting Jira Connect installations that could have allowed an authenticated user with minimal workspace permissions to obtain installation credentials and impersonate the GitLab app due to improper authorization checks.
Severity ?
8.1 (High)
CWE
- CWE-233 - Improper Handling of Parameters
Assigner
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
Impacted products
Credits
Thanks [maksyche](https://hackerone.com/maksyche) for reporting this vulnerability through our HackerOne bug bounty program
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CVE-2026-3988 (GCVE-0-2026-3988)
Vulnerability from cvelistv5 – Published: 2026-03-25 16:33 – Updated: 2026-03-25 17:21
VLAI?
EPSS
Title
Inefficient Algorithmic Complexity in GitLab
Summary
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.5 before 18.8.7, 18.9 before 18.9.3, and 18.10 before 18.10.1 that could have allowed an unauthenticated user to cause a denial of service by making the GitLab instance unresponsive due to improper input validation in GraphQL request processing.
Severity ?
7.5 (High)
CWE
- CWE-407 - Inefficient Algorithmic Complexity
Assigner
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
Impacted products
Credits
Thanks [svalkanov](https://hackerone.com/svalkanov) for reporting this vulnerability through our HackerOne bug bounty program
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"value": "GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.5 before 18.8.7, 18.9 before 18.9.3, and 18.10 before 18.10.1 that could have allowed an unauthenticated user to cause a denial of service by making the GitLab instance unresponsive due to improper input validation in GraphQL request processing."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-407",
"description": "CWE-407: Inefficient Algorithmic Complexity",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-03-25T16:33:43.952Z",
"orgId": "ceab7361-8a18-47b1-92ba-4d7d25f6715a",
"shortName": "GitLab"
},
"references": [
{
"url": "https://gitlab.com/gitlab-org/gitlab/-/work_items/593140"
},
{
"name": "HackerOne Bug Bounty Report #3597342",
"tags": [
"technical-description",
"exploit",
"permissions-required"
],
"url": "https://hackerone.com/reports/3597342"
},
{
"url": "https://about.gitlab.com/releases/2026/03/25/patch-release-gitlab-18-10-1-released/"
}
],
"solutions": [
{
"lang": "en",
"value": "Upgrade to versions 18.8.7, 18.9.3, 18.10.1 or above."
}
],
"title": "Inefficient Algorithmic Complexity in GitLab"
}
},
"cveMetadata": {
"assignerOrgId": "ceab7361-8a18-47b1-92ba-4d7d25f6715a",
"assignerShortName": "GitLab",
"cveId": "CVE-2026-3988",
"datePublished": "2026-03-25T16:33:43.952Z",
"dateReserved": "2026-03-11T15:37:07.048Z",
"dateUpdated": "2026-03-25T17:21:53.191Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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