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PatchSiren cyber security CVE debrief

CVE-2026-9694 GitLab CVE debrief

CVE-2026-9694 is a vulnerability in GitLab CE/EE that could allow an unauthenticated user to impersonate the GitLab Support Bot and inject arbitrary content via a specially crafted Service Desk email reply. This issue is due to improper neutralization in email template processing and affects versions from 15.9 before 18.10.8, 18.11 before 18.11.5, and 19.0 before 19.0.2.

Vendor
GitLab
Product
Unknown
CVSS
LOW 2.6
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-11
Original CVE updated
2026-06-11
Advisory published
2026-06-11
Advisory updated
2026-06-11

Who should care

Users of GitLab CE/EE versions from 15.9 before 18.10.8, 18.11 before 18.11.5, and 19.0 before 19.0.2 should be aware of this vulnerability and take steps to mitigate it.

Technical summary

The vulnerability has a CVSS score of 2.6 and is classified as LOW severity. It is caused by improper neutralization in email template processing, which could allow an unauthenticated user to impersonate the GitLab Support Bot and inject arbitrary content via a specially crafted Service Desk email reply.

Defensive priority

LOW

Recommended defensive actions

  • Upgrade to version 18.10.8, 18.11.5, or 19.0.2 or later.
  • Refer to resourceLinkAnnotations 'ref-4' for more information on mitigation and vendor references.

Evidence notes

The vulnerability was reported and remediated by GitLab. For more information, see resourceLinkAnnotations 'ref-5' and 'ref-6'.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-9694 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-9694

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-9694 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-9694

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.