What is CVE-2026-82837?

CVE-2026-82837 is a medium-severity vulnerability in GitLab, classified under Insertion of Sensitive Information into Sent Data. CVSS score: 5.3/10. Published 2026-09-15.

How severe is CVE-2026-82837?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Vulnerability in GitLab

CVE-2026-82837

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 10.1.0 before 19.1.8, 19.2 before 19.2.6, and 19.3 before 19.3.2 that certain conditions could have allowed an authenticated user to access sensitive credentials and tokens without transiting the expected proxy due to improper authorization checks on internal data emission endpoints.

Published 2026-09-15 · last modified 2026-09-28.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.002 (13.9th percentile), scored 2026-10-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 14th percentile — 13.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

GitLab

Weakness classification (CWE)

References

gitlab.com/gitlab-org/gitlab/-/work_items/626540 (Broken Link)
hackerone.com/reports/3907835 (Permissions Required, technical-description, permissions-required, exploit)
gitlab.com/gitlab-org/gitlab/-/work_items/610136 (Broken Link)

Frequently asked questions

What is CVE-2026-82837?: CVE-2026-82837 is a medium-severity vulnerability in GitLab, classified under Insertion of Sensitive Information into Sent Data. CVSS score: 5.3/10. Published 2026-09-15.
How severe is CVE-2026-82837?: Medium severity. CVSS v3 base score is 5.3 out of 10.