CVE-2026-2601

MEDIUM 4.3 PoC AVAILABLE

Published 2026-05-27 · Last modified 2026-05-27

GitLab has remediated an issue in GitLab EE affecting all versions from 11.5 before 18.10.7, 18.11 before 18.11.4, and 19.0 before 19.0.1 that under certain conditions could have allowed an authenticated user with developer-role permissions to access sensitive deployment data on projects due to improper authorization checks.

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 · 15th percentile

○ In CISA KEV ● Public exploit / PoC

Impact if exploited

4.3CVSS 3.1 · MEDIUM

ConfidentialityLow
IntegrityNone
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/3556381

Listed for defensive triage and patch prioritization.

Affected

Vendors Gitlab

Products Gitlab

Weakness (CWE)

CWE-862: Missing authorization

CVSS vector

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

References

Exploits & PoC

https://hackerone.com/reports/3556381 technical-descriptionexploitpermissions-required

Technical & other

Sources: NVD · CVE.org · EPSS