CVE-2024-56196Network attack vector

ACL bypass via incompatible legacy rule evaluation

Published Mar 6, 2025 · Updated Mar 6, 2025

Improper access control in Apache Traffic Server 10.0.0 through 10.0.3 allows remote authenticated users to bypass ACL restrictions. Traffic Server 10.x stops at the first matching ACL filter, unlike the earlier traversal model that gave deny actions precedence, so some legacy rule sets produce a different authorization decision. Exposure requires an older ACL configuration whose rule ordering changes the outcome; unauthorized requests can reach resources or methods that the prior policy denied.

CVSS severity6.3
Medium
EPSS probability0.76%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper access control in Apache Traffic Server 10.0.0 through 10.0.3 allows remote authenticated users to bypass ACL restrictions. Traffic Server 10.x stops at the first matching ACL filter, unlike the earlier traversal model that gave deny actions precedence, so some legacy rule sets produce a different authorization decision. Exposure requires an older ACL configuration whose rule ordering changes the outcome; unauthorized requests can reach resources or methods that the prior policy denied.

The record

CVE
CVE-2024-56196
Published
Mar 6, 2025
Updated
Mar 6, 2025
Vendor
The Apache Software Foundation
Product
Apache Traffic Server
Classifications
CWE-284, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 6, 2025CVE publishedPublication date reported by the CVE source.
  2. Mar 6, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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  1. Affected versionversion=10.0.0 <=10.0.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

The Apache Software Foundation · Apache Traffic Serverversion=10.0.0 <=10.0.3

Published CVSS scores

6.3CISA-ADPCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-284Improper Access Control
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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