CVE-2024-53868

Apache Traffic Server: Malformed chunked message body allows request smuggling

HIGH
7.5
CVSS Score
Published: April 3, 2025 at 08:59 AM UTC
Updated: June 17, 2026 at 08:09 AM UTC
1 product affected across 1 vendorTraffic Server

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Severity
HIGH7.5
Exploit prediction
EPSS 0.7%
SSVC
No known exploit

Description

Apache Traffic Server allows request smuggling if chunked messages are malformed. This issue affects Apache Traffic Server: from 9.2.0 through 9.2.9, from 10.0.0 through 10.0.4. Users are recommended to upgrade to version 9.2.10 or 10.0.5, which fixes the issue.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

10.0.0 ≤ v ≤ 10.0.410.0.0 ≤ v < 10.0.59.0.0 ≤ v < 9.2.109.2.0 ≤ v ≤ 9.2.910.0.09.2.0
Affected range stops below 10.0.5, so it looks safe — our inference, not a vendor statement
Affected range stops below 9.2.10, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (2)

Mailing ListThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.openwall.com/lists/oss-security/2025/04/02/4

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGHCISA-ADP
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-444

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