CVE-2026-1092
Gitlab 12.10.0 – 18.8.9
Raw vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HSummary
CVE-2026-1092 is a high-severity Improper Validation of Specified Quantity in Input (CWE-1284) vulnerability in Gitlab Gitlab. Its CVSS base score is 7.5 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploitation for Privilege Escalation (T1068); ranked at the 43th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
The strongest mitigations our analysis identified map to SI-10 (Information Input Validation) — see the control section below for these in your framework.
Deeper analysis AI-assisted summary
Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.
CVE-2026-1092 is a denial-of-service vulnerability in GitLab Community Edition (CE) and Enterprise Edition (EE) stemming from improper input validation of JSON payloads (CWE-1284). It affects all versions from 12.10 prior to 18.8.9, 18.9 prior to 18.9.5, and 18.10 prior to 18.10.3. The issue has a CVSS v3.1 base score of 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H), highlighting its high availability impact with no confidentiality or integrity effects.
An unauthenticated attacker can exploit this vulnerability remotely over the network with low attack complexity and no user interaction or privileges required. By sending a specially crafted JSON payload, the attacker triggers improper validation, leading to resource exhaustion and denial of service on the affected GitLab instance.
GitLab has remediated the vulnerability through security patch releases, including GitLab 18.10.3. Administrators should upgrade to patched versions such as 18.8.9, 18.9.5, or 18.10.3 or later. Additional details are available in the GitLab patch release notes at https://about.gitlab.com/releases/2026/04/08/patch-release-gitlab-18-10-3-released/, the associated work item at https://gitlab.com/gitlab-org/gitlab/-/work_items/586479, and the HackerOne report at https://hackerone.com/reports/3487030.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2026-20789
Vulnerability Data
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 12.10 before 18.8.9, 18.9 before 18.9.5, and 18.10 before 18.10.3 that could have allowed an unauthenticated user to cause denial of service due to improper input validation of…
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JSON payloads.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise Techniques
CVEs Like This One
Affected Assets
Mitigating Controls
Control response
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V6.7.2V1.4.2V2.1.1V2.2.1
Mitigating Controls (NIST 800-53 r5) AI
SI-10 requires validity checks on information inputs, directly stopping acceptance of malformed quantities before they can be used.
Mitigating Controls (NIST CSF 2.0) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.
Secure SDLC practices directly require proper quantity/length validation in input handling.
Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.
Security testing in development can detect missing quantity validation but does not itself implement the control.
Secure development lifecycle mandates input validation for quantity fields, directly preventing CWE-1284.
Application security requirements explicitly call for validation of size/length inputs, mitigating CWE-1284.
Secure architecture principles encourage robust input handling but do not specifically address quantity validation.
Secure coding standards require explicit checks on numeric quantity inputs, fully addressing CWE-1284.