CVE-2026-1606

MEDIUM 4.3 PoC AVAILABLE

Published 2026-06-25 · Last modified 2026-06-25

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 14.8 before 18.11.6, 19.0 before 19.0.3, and 19.1 before 19.1.1 that under certain conditions could have allowed an authenticated user to conceal content within a Snippet due to improper input validation.

EXPLOIT AVAILABLE

Public exploit or PoC code exists. Modeled probability is still low, but the barrier to attack is reduced — watch closely.

Exploitation likelihood

0.2%chance of exploitation in 30 days · 13th percentile

○ In CISA KEV ● Public exploit / PoC

Impact if exploited

4.3CVSS 3.1 · MEDIUM

ConfidentialityNone
IntegrityLow
AvailabilityNone

What an attacker needs

✓Access: Reachable over the network — no local access needed
⚠Privileges: Requires a low-privilege account
✓User interaction: No user interaction needed
✓Complexity: No special conditions — reliably repeatable

✓ lowers the bar for an attacker · ⚠ raises it

Proof of concept & exploit code

PoC https://hackerone.com/reports/3527473

Listed for defensive triage and patch prioritization.

Affected

Vendors Gitlab

Products Gitlab

Weakness (CWE)

CWE-94: Code injection

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

References

Exploits & PoC

https://hackerone.com/reports/3527473 technical-descriptionexploitpermissions-required

Technical & other

Sources: NVD · CVE.org · EPSS