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6008 articles · 245709 vulns · 37/41 feeds (7d)
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8.2
CVE-2026-15723PATCHED
GitLab · GitLab CE/EE

Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection') in GitLab

Description

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 10.1 before 19.3.6, 19.4 before 19.4.3, and 19.5 before 19.5.1 that, when OmniAuth SAML and LDAP auto-linking were both enabled, an authenticated user could have taken over an existing LDAP-backed account without any interaction from the targeted user, due to improper input sanitization in the LDAP email lookup path used during OmniAuth identity linking.

Affected Products

VendorProductVersions
GitLabGitLab CE/EE10.1, 19.4, 19.5

Also Affects

Downstream vendors/products affected by this vulnerability

VendorProductSourceConfidence
open sourcegitlabcert_advisory90%

References

  • https://gitlab.com/gitlab-org/gitlab/-/work_items/605977
  • https://hackerone.com/reports/3852192(technical-description, exploit, permissions-required)
  • https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-5-1-released/

Related News (3 articles)

Tier B
BSI Advisories4h ago
[NEU] [hoch] GitLab: Mehrere Schwachstellen
→ No new info (linked only)
Tier C
VulDB18h ago
CVE-2026-15723 | GitLab up to 19.3.5/19.4.2/19.5.0 LDAP Email Lookup improper authentication
→ No new info (linked only)
Tier E
Lobsters Security22h ago
GitLab Critical Patch Release
→ No new info (linked only)

Discussion (0)

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CVSS 3.18.2 HIGH
VectorCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N
CISA KEV❌ No
Actively exploited❌ No
Patch available
19.3.619.4.319.5.1
CWECWE-90
PublishedOct 21, 2026
Last enriched18h agov2
Trending Score42
Source articles3
Independent3
Info Completeness7/14
Missing: versions, epss, kev, exploit, patch, iocs, mitre_attack

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CRITICALCVE-2026-97229
Integer Overflow or Wraparound in GitLab
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CRITICALCVE-2026-110264
Integer Overflow or Wraparound in GitLab
Trending: 60
CRITICALCVE-2026-89078
Double Free in GitLab
Trending: 53
HIGHCVE-2026-103515
Incorrect Authorization in GitLab
Trending: 46

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Verification

State: verified
Confidence: 100%

Vulnerability Timeline

CVE Published
Oct 21, 2026
Discovered by ZDM
Oct 22, 2026
Updated: vendor, product
Oct 22, 2026
Patch Available
Oct 22, 2026

Version History

v2
Last enriched 18h ago
v2Tier C18h ago

Updated severity from HIGH to CRITICAL and added missing vendor (GitLab) and product (GitLab CE/EE) information.

vendorproduct
via VulDB
v119h ago

Initial creation