What is CVE-2025-51308?

CVE-2025-51308 is a medium-severity vulnerability in Gatling, classified under Missing Authorization. CVSS score: 5.3/10. Published 2025-08-06.

How severe is CVE-2025-51308?

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

Is CVE-2025-51308 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Auth bypass in Gatling

CVE-2025-51308

In Gatling Enterprise versions below 1.25.0, a low-privileged user that does not hold the role "admin" could perform a REST API call on read-only endpoints, allowing him to collect some information, due to missing authorization checks.

Vulnerability class: Broken Access Control

Published 2025-08-06 · last modified 2026-06-17.

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: 0.003 (25.6th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 26th percentile — 25.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

Gatling

Weakness classification (CWE)

CWE-862 — Missing Authorization

Public proof-of-concept exploits

fkie-cad/nvd-json-data-feeds

References

gatling.io/products (Product)
github.com/Flo354/vulnerabilities/tree/main/gatling-enterprise (Exploit)
github.com/Flo354/vulnerabilities/blob/main/gatling-enterprise/CVE-2025-51308-b… (Exploit)

Frequently asked questions

What is CVE-2025-51308?: CVE-2025-51308 is a medium-severity vulnerability in Gatling, classified under Missing Authorization. CVSS score: 5.3/10. Published 2025-08-06.
How severe is CVE-2025-51308?: Medium severity. CVSS v3 base score is 5.3 out of 10.
Is CVE-2025-51308 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.