Cyber Resilience

CVE-2025-7449

DoS in Gitlab 8.3.0 – 18.4.5

Published
26 November 2025
Modified
10 December 2025
CVSS Score v3.1 6.5
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS Score 0.0040 33th percentile
Risk Priority 35 floored blend · peak EPSS

Summary

CVE-2025-7449 is a medium-severity Allocation of Resources Without Limits or Throttling (CWE-770) vulnerability in Gitlab Gitlab. Its CVSS base score is 6.5 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Application or System Exploitation (T1499.004); ranked at the 33th 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 SC-5 (Denial-of-service Protection) and AC-6 (Least Privilege) — see the control section below for these in your framework.

EU & UK References

Vulnerability Data

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 8.3 before 18.4.5, 18.5 before 18.5.3, and 18.6 before 18.6.1 that could have allowed an authenticated user with specific permissions to cause a denial of service condition through…

more

HTTP response processing.

CWE(s)

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1499.004 Application or System Exploitation Impact
Adversaries may exploit software vulnerabilities that can cause an application or system to crash and deny availability to users.
Why these techniques?

Authenticated resource exhaustion via HTTP response processing directly enables application-layer DoS via software exploitation.

Confidence: MEDIUM · MITRE ATT&CK Enterprise v19.0

CVEs Like This One

CVE-2026-1387Same product: Gitlab Gitlab
CVE-2023-6386Same product: Gitlab Gitlab
CVE-2025-8014Same product: Gitlab Gitlab
CVE-2026-1500Same product: Gitlab Gitlab
CVE-2026-2845Same product: Gitlab Gitlab
CVE-2026-1402Same product: Gitlab Gitlab
CVE-2026-1660Same product: Gitlab Gitlab
CVE-2024-2878Same product: Gitlab Gitlab
CVE-2025-5996Same product: Gitlab Gitlab
CVE-2026-1725Same product: Gitlab Gitlab

Affected Assets

gitlab
gitlab
18.6.0 · 8.3.0 — 18.4.5 · 8.3.0 — 18.4.5 · 18.5.0 — 18.5.3

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)
  • SC-5 Denial-of-service Protection
  • AC-6 Least Privilege
  • SI-10 Information Input Validation
Detect
Catch it (NIST detect / respond)

Harden
Shrink the surface (DISA STIG)
  • 5 hardening rules · 3 OS baselines
Validate
Prove the fix (OWASP ASVS)
  • V15.4.4

Mitigating Controls (NIST 800-53 r5) AI

prevent

Directly requires mechanisms to protect against or limit the effects of denial-of-service attacks caused by uncontrolled resource allocation during HTTP response processing.

prevent

Restricts the permissions granted to authenticated users so they cannot trigger unbounded resource consumption paths in the HTTP response handler.

prevent

Enforces validation and sanity checks on externally-supplied HTTP responses to reject or throttle malformed or excessively large data before resource exhaustion occurs.

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.

PR.IR-04 mostly match
degrades

Monitoring capacity and taking action to maintain availability directly reduces unchecked resource allocation.

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.

detects

Baseline comparison of CPU, memory and bandwidth usage helps surface uncontrolled resource allocations before they cause service degradation.

prevents

Capacity projections and elasticity measures ensure that allocation requests are bounded and can be throttled, reducing the window in which an attacker can force unbounded resource reservations.

mitigates

Defining retention periods and deletion schedules for backup copies prevents indefinite accumulation of data on storage media without corresponding resource-management controls.

mitigates

Architectural redundancy and automatic failover limit the impact of an attacker who forces excessive allocations, because spare capacity can absorb the load until the primary instance recovers.

none

Documented incident response procedures that include activation of continuity plans and controlled recovery help ensure that resource consumption triggered by an incident is bounded and managed rather than left unbounded.

none

Mandating tested continuity procedures that preserve or replace resource-limiting controls prevents an attacker from exploiting the absence of throttling mechanisms during an outage.

References