What is CVE-2025-49763?

CVE-2025-49763 is a high-severity vulnerability in Apache Traffic_server, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2025-06-19.

How severe is CVE-2025-49763?

High severity. CVSS v3 base score is 7.5 out of 10.

Resource exhaustion in Apache Traffic_server

CVE-2025-49763

ESI plugin does not have the limit for maximum inclusion depth, and that allows excessive memory consumption if malicious instructions are inserted. Users can use a new setting for the plugin (--max-inclusion-depth) to limit it. This issu…

Vulnerability class: DoS (Denial of Service)

EPSS: 0.006 (46.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Apache Traffic_server
Apache Software Foundation Traffic Server — versions 10.0.0, 9.0.0

Weakness classification (CWE)

CWE-400 — Uncontrolled Resource Consumption

References

security@apache.org (vendor-advisory, Mailing List, Vendor Advisory)

Frequently asked questions

What is CVE-2025-49763?: CVE-2025-49763 is a high-severity vulnerability in Apache Traffic_server, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2025-06-19.
How severe is CVE-2025-49763?: High severity. CVSS v3 base score is 7.5 out of 10.