CVE-2025-49763

Apache Traffic Server: Remote DoS via memory exhaustion in ESI Plugin

Description

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 issue affects Apache Traffic Server: from 10.0.0 through 10.0.5, from 9.0.0 through 9.2.10. Users are recommended to upgrade to version 9.2.11 or 10.0.6, which fixes the issue.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.02%
Vendor Advisory apache.org
Affected: Apache Software Foundation Apache Traffic Server
Published at:
Updated at:

References

Link Tags
https://lists.apache.org/thread/15t32nxbypqg1m2smp640vjx89o6v5f8 vendor advisory mailing list

Frequently Asked Questions

What is the severity of CVE-2025-49763?
CVE-2025-49763 has been scored as a high severity vulnerability.
How to fix CVE-2025-49763?
To fix CVE-2025-49763, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-49763 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2025-49763 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-49763?
CVE-2025-49763 affects Apache Software Foundation Apache Traffic Server.
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