Cyber Resilience

CVE-2026-9694

Gitlab 15.9.0 – 18.10.8

Published
11 June 2026
Modified
17 June 2026
CVSS Score v3.1 2.6
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:L/A:N
EPSS Score 0.0021 11th percentile
Risk Priority 25 floored blend · peak EPSS

CVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.

Summary

CVE-2026-9694 is a low-severity Improper Neutralization of Substitution Characters (CWE-153) vulnerability in Gitlab Gitlab. Its CVSS base score is 2.6 (Low).

Operationally, exploitation aligns with the MITRE ATT&CK technique Command and Scripting Interpreter (T1059); ranked at the 11th 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.

EU & UK References

Vulnerability Data

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 15.9 before 18.10.8, 18.11 before 18.11.5, and 19.0 before 19.0.2 that under certain conditions, could have allowed an unauthenticated user to impersonate the GitLab Support Bot and inject…

more

arbitrary content via a specially crafted Service Desk email reply due to improper neutralization in email template processing.

CWE(s)
CWE-153

Related Threats

MITRE ATT&CK Enterprise Techniques

T1059 Command and Scripting Interpreter Execution
Adversaries may abuse command and script interpreters to execute commands, scripts, or binaries.
attack.mitre.org →
T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
attack.mitre.org →
T1659 Content Injection Initial Access
Adversaries may gain access and continuously communicate with victims by injecting malicious content into systems through online network traffic.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2025-12697Same product: Gitlab Gitlab
CVE-2024-6329Same product: Gitlab Gitlab
CVE-2025-12734Same product: Gitlab Gitlab
CVE-2025-8405Same product: Gitlab Gitlab
CVE-2026-3848Same product: Gitlab Gitlab
CVE-2023-2200Same product: Gitlab Gitlab
CVE-2024-4201Same product: Gitlab Gitlab
CVE-2026-16627Same product: Gitlab Gitlab
CVE-2025-12575Same product: Gitlab Gitlab
CVE-2020-13340Same product: Gitlab Gitlab

Affected Assets

gitlab
gitlab
15.9.0 — 18.10.8 · 15.9.0 — 18.10.8 · 18.11.0 — 18.11.5

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

—

Detect
Catch it (NIST detect / respond)

—

Harden
Shrink the surface (DISA STIG)

—

Validate
Prove the fix (OWASP ASVS)
  • V1.2.9
  • V1.2.10

Mitigating Controls (NIST 800-53 r5) AI

SI-10 Information Input Validation good match

Input validation directly requires neutralizing or rejecting dangerous substitution characters before they reach a downstream interpreter.

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.PS-06 mostly match
prevents

Secure SDLC practices directly require input validation and neutralization of substitution characters.

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.

A.8.29 Security testing in development and acceptance mostly match
finds

Security testing can detect substitution-character flaws but does not itself implement neutralization.

A.8.25 Secure development life cycle partial match
prevents

Secure development lifecycle mandates input validation and sanitization that directly prevents substitution-character injection.

A.8.26 Application security requirements partial match
prevents

Application security requirements explicitly call for neutralizing special elements before downstream processing.

A.8.28 Secure coding partial match
prevents

Secure coding standards require proper neutralization of substitution characters in all input handling.

References