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Unrated severityNVD Advisory· Published Jun 19, 2025· Updated Jun 20, 2025

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

CVE-2025-49763

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.

Affected products

2
  • Apache/Traffic Serverllm-fuzzy2 versions
    9.0.0 through 9.2.10, 10.0.0 through 10.0.5+ 1 more
    • (no CPE)range: 9.0.0 through 9.2.10, 10.0.0 through 10.0.5
    • (no CPE)range: 10.0.0

Patches

Vulnerability mechanics

References

1

News mentions

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