CVE-2025-49763

Published Jun 19, 2025

Last updated a year ago

Overview

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.
Source
security@apache.org
NVD status
Analyzed
Products
traffic_server

Risk scores

CVSS 3.1

Type
Secondary
Base score
7.5
Impact score
3.6
Exploitability score
3.9
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Severity
HIGH

Weaknesses

security@apache.org
CWE-400

Social media

Hype score
Not currently trending
  1. 🛑Happy to share my new finding - as part of Imperva's Offensive Team, in Apache Traffic Server via ESI plugin : CVE-2025-49763, high severity bug that enables a threat actor to remotely exhaust memory and crash a proxy instance via recursive ESI inclusion https://t.co/O6Tn2BsZ

    @SillamYohann

    22 Jun 2025

    39 Impressions

    0 Retweets

    0 Likes

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    0 Quotes

  2. #CVE-2025-49763 - #Remote_DoS via #Memory_Exhaustion in #Apache Traffic Server via #ESI Plugin https://t.co/kbDCIBwPRe https://t.co/GIT07ix44c

    @omvapt

    21 Jun 2025

    22 Impressions

    0 Retweets

    0 Likes

    0 Bookmarks

    0 Replies

    0 Quotes

  3. Critical vulnerability CVE-2025-49763 in Apache Traffic Server versions 9.0.0-9.2.10 & 10.0.0-10.0.5 can lead to memory exhaustion & DoS via ESI plugin. Proper upgrades & configs are essential. 🚨 #CyberThreat #Apache #US https://t.co/7Hmv4hMXu1

    @TweetThreatNews

    20 Jun 2025

    58 Impressions

    0 Retweets

    1 Like

    0 Bookmarks

    0 Replies

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  4. Apache Traffic ServerのESIプラグインに深刻な脆弱性(CVE-2025-49763)が発見された。 この脆弱性は、リモートからのDoS攻撃を可能にし、サーバーメモリを枯渇させることでサービス停止を引き起こす。

    @yousukezan

    19 Jun 2025

    1427 Impressions

    1 Retweet

    5 Likes

    1 Bookmark

    0 Replies

    0 Quotes

  5. Two critical flaws in Apache Traffic Server (CVE-2025-31698, CVE-2025-49763) allow IP-based ACL bypass and remote DoS via ESI plugin. Update and configure immediately. #ApacheATS #Cybersecurity #Vulnerability #DoS #PatchNow https://t.co/U8V6Fs1Hne

    @the_yellow_fall

    19 Jun 2025

    307 Impressions

    0 Retweets

    6 Likes

    3 Bookmarks

    0 Replies

    0 Quotes

Configurations

References

Sources include official advisories and independent security research.