CVE-2026-3254Patch(gitlab / gitlab)

LOWCVSS 3.5 · LOW

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Patch gitlab gitlab systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.11 before 18.11.1 that under certain conditions could have allowed an authenticated user to load unauthorized content into another user's browser due to improper input validation in the Mermaid sandbox.

0.5/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-1021

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • gitlab

Threat summary

  • Patch or workaround signal is available
  • 1 mentions across 1 observed day

What's happening

  • Patch or workaround mentioned in 1 signal
  • Technical details provided in 1 signal
  • 1 total mentions across 1 day

Affected systems

Vendors
Products
gitlab

1 version affected across 1 product

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-04-22: 1Patch / Workaround · 2026-04-22: 1Technical Details · 2026-04-22: 104-22
Signal classification1 categories
Patch
1100.0%
Referenced assets1 URL
By indicator
Full discourse1 post
  • CVE@CVEnew
    Patch

    CVE-2026-3254 GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.11 before 18.11.1 that under certain conditions could have allowed an authenticated user t… https://www.cve.org/CVERecord?id=CVE-2026-3254

    Post summary

    GitLab has released a patch for CVE‑2026‑3254 that affected all 18.11 versions before 18.11.1 and could have allowed an authenticated user to exploit the vulnerability.

    0000076
    57.2K followersView on X
CPE platform detail2 entries

2 of 2 entries

PartVendorProductVersionTarget SWTarget HW
Appgitlabgitlab18.11.0--
Appgitlabgitlab18.11.0--

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