CWE-1280
Access Control Check Implemented After Asset is Accessed
A product's hardware-based access control check occurs after the asset has been accessed.
CVE-2026-3607 (GCVE-0-2026-3607)
Vulnerability from cvelistv5 – Published: 2026-05-14 05:35 – Updated: 2026-05-14 13:06
VLAI?
Title
Access Control Check Implemented After Asset is Accessed in GitLab
Summary
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.3 before 18.9.7, 18.10 before 18.10.6, and 18.11 before 18.11.3 that could have allowed an authenticated user with developer-role permissions to bypass package protection rules due to improper access control.
Severity ?
4.3 (Medium)
CWE
- CWE-1280 - Access Control Check Implemented After Asset is Accessed
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://hackerone.com/reports/3586233 | technical-descriptionexploitpermissions-required |
| https://gitlab.com/gitlab-org/gitlab/-/work_items… | |
| https://about.gitlab.com/releases/2026/05/13/patc… |
Impacted products
Credits
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-3607",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-05-14T13:06:35.358821Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-05-14T13:06:45.555Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"cpes": [
"cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*"
],
"defaultStatus": "unaffected",
"product": "GitLab",
"repo": "git://git@gitlab.com:gitlab-org/gitlab.git",
"vendor": "GitLab",
"versions": [
{
"lessThan": "18.9.7",
"status": "affected",
"version": "18.3",
"versionType": "semver"
},
{
"lessThan": "18.10.6",
"status": "affected",
"version": "18.10",
"versionType": "semver"
},
{
"lessThan": "18.11.3",
"status": "affected",
"version": "18.11",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Thanks [aphantom](https://hackerone.com/aphantom) for reporting this vulnerability through our HackerOne bug bounty program"
}
],
"descriptions": [
{
"lang": "en",
"value": "GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.3 before 18.9.7, 18.10 before 18.10.6, and 18.11 before 18.11.3 that could have allowed an authenticated user with developer-role permissions to bypass package protection rules due to improper access control."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 4.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "LOW",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
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"value": "GENERAL"
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],
"problemTypes": [
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"descriptions": [
{
"cweId": "CWE-1280",
"description": "CWE-1280: Access Control Check Implemented After Asset is Accessed",
"lang": "en",
"type": "CWE"
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]
}
],
"providerMetadata": {
"dateUpdated": "2026-05-14T05:35:42.338Z",
"orgId": "ceab7361-8a18-47b1-92ba-4d7d25f6715a",
"shortName": "GitLab"
},
"references": [
{
"name": "HackerOne Bug Bounty Report #3586233",
"tags": [
"technical-description",
"exploit",
"permissions-required"
],
"url": "https://hackerone.com/reports/3586233"
},
{
"url": "https://gitlab.com/gitlab-org/gitlab/-/work_items/592466"
},
{
"url": "https://about.gitlab.com/releases/2026/05/13/patch-release-gitlab-18-11-3-released/"
}
],
"solutions": [
{
"lang": "en",
"value": "Upgrade to versions 18.9.7, 18.10.6, 18.11.3 or above."
}
],
"title": "Access Control Check Implemented After Asset is Accessed in GitLab"
}
},
"cveMetadata": {
"assignerOrgId": "ceab7361-8a18-47b1-92ba-4d7d25f6715a",
"assignerShortName": "GitLab",
"cveId": "CVE-2026-3607",
"datePublished": "2026-05-14T05:35:42.338Z",
"dateReserved": "2026-03-05T17:33:14.076Z",
"dateUpdated": "2026-05-14T13:06:45.555Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
Mitigation
Phase: Implementation
Description:
- Implement the access control check first. Access should only be given to asset if agent is authorized.
CAPEC-180: Exploiting Incorrectly Configured Access Control Security Levels
An attacker exploits a weakness in the configuration of access controls and is able to bypass the intended protection that these measures guard against and thereby obtain unauthorized access to the system or network. Sensitive functionality should always be protected with access controls. However configuring all but the most trivial access control systems can be very complicated and there are many opportunities for mistakes. If an attacker can learn of incorrectly configured access security settings, they may be able to exploit this in an attack.