Request smuggling via chunked-body pipeline overconsumption
Published Mar 6, 2025 · Updated Mar 6, 2025
Improper input validation in Apache Traffic Server allows remote authenticated users to smuggle HTTP requests through the proxy. The HTTP tunnel consumes every available byte after a chunked request body instead of stopping at the decoded body boundary, causing a pipelined request to be forwarded unparsed or discarded. Access to a request path through the proxy is required; successful exploitation can misroute a following request or cause its loss.
Summary
What happened
Improper input validation in Apache Traffic Server allows remote authenticated users to smuggle HTTP requests through the proxy. The HTTP tunnel consumes every available byte after a chunked request body instead of stopping at the decoded body boundary, causing a pipelined request to be forwarded unparsed or discarded. Access to a request path through the proxy is required; successful exploitation can misroute a following request or cause its loss.
The record
- CVE
- CVE-2024-38311
- Published
- Mar 6, 2025
- Updated
- Mar 6, 2025
- Vendor
- The Apache Software Foundation
- Product
- Apache Traffic Server
- Classifications
- CWE-20, T1190
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Mar 6, 2025CVE publishedPublication date reported by the CVE source.
- 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?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=10.0.0 <=10.0.3
- Affected versionversion=8.0.0 <=8.1.11
- Affected versionversion=9.0.0 <=9.2.8
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
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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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