CVE-2026-1516 | GitLab Enterprise Edition up to 18.8.8/18.9.4/18.10.2 code injection

VDB-356474 · CVE-2026-1516 · GCVE-0-2026-1516 GITLAB ENTERPRISE EDITION UP TO 18.8.8/18.9.4/18.10.2 CODE INJECTION HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 5.9 $0-$5k 0.27+ Summaryinfo A vulnerability was found in GitLab Enterprise Edition up to 18.8.8/18.9.4/18.10.2. It has been declared as critical. This affects an unknown function. Such manipulation leads to code injection. This vulnerability is traded as CVE-2026-1516. The attack may be launched remotely. There is no exploit available. It is recommended to upgrade the affected component. Detailsinfo A vulnerability, which was classified as critical, has been found in GitLab Enterprise Edition up to 18.8.8/18.9.4/18.10.2. Affected by this issue is some unknown processing. The manipulation with an unknown input leads to a code injection vulnerability. Using CWE to declare the problem leads to CWE-94. The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. Impacted is confidentiality, integrity, and availability. CVE summarizes: GitLab has remediated an issue in GitLab EE affecting all versions from 18.0.0 before 18.8.9, 18.9 before 18.9.5, and 18.10 before 18.10.3 that in Code Quality reports could have allowed an authenticated user to leak IP addresses of users viewing the report via specially crafted content. The weakness was shared by Maksyche. The advisory is available at hackerone.com. This vulnerability is handled as CVE-2026-1516 since 01/28/2026. The exploitation is known to be easy. The attack may be launched remotely. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1059 by the MITRE ATT&CK project. Upgrading to version 18.8.9, 18.9.5 or 18.10.3 eliminates this vulnerability. The upgrade is hosted for download at about.gitlab.com. Productinfo Type Bug Tracking Software Vendor GitLab Name Enterprise Edition Version 18.8.0 18.8.1 18.8.2 18.8.3 18.8.4 18.8.5 18.8.6 18.8.7 18.8.8 18.9.0 18.9.1 18.9.2 18.9.3 18.9.4 18.10.0 18.10.1 18.10.2 License commercial Website Vendor: https://gitlab.com/ CPE 2.3info 🔒 🔒 🔒 CPE 2.2info 🔒 🔒 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 6.0 VulDB Meta Temp Score: 5.9 VulDB Base Score: 6.3 VulDB Temp Score: 6.0 VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA Base Score: 5.7 CNA Vector (GitLab): 🔒 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Code injection CWE: CWE-94 / CWE-74 / CWE-707 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Status: Not defined Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: Upgrade Status: 🔍 0-Day Time: 🔒 Upgrade: Enterprise Edition 18.8.9/18.9.5/18.10.3 Timelineinfo 01/28/2026 CVE reserved 04/09/2026 +70 days Advisory disclosed 04/09/2026 +0 days VulDB entry created 04/09/2026 +0 days VulDB entry last update Sourcesinfo Vendor: gitlab.com Advisory: hackerone.com Researcher: Maksyche Status: Confirmed CVE: CVE-2026-1516 (🔒) GCVE (CVE): GCVE-0-2026-1516 GCVE (VulDB): GCVE-100-356474 Entryinfo Created: 04/09/2026 02:44 Changes: 04/09/2026 02:44 (66) Complete: 🔍 Cache ID: 99:564:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸