CVE-2022-24790 (GCVE-0-2022-24790)
Vulnerability from cvelistv5 – Published: 2022-03-30 21:50 – Updated: 2025-04-23 18:43
VLAI
EPSS
VEX
Title
HTTP Request Smuggling in puma
Summary
Puma is a simple, fast, multi-threaded, parallel HTTP 1.1 server for Ruby/Rack applications. When using Puma behind a proxy that does not properly validate that the incoming HTTP request matches the RFC7230 standard, Puma and the frontend proxy may disagree on where a request starts and ends. This would allow requests to be smuggled via the front-end proxy to Puma. The vulnerability has been fixed in 5.6.4 and 4.3.12. Users are advised to upgrade as soon as possible. Workaround: when deploying a proxy in front of Puma, turning on any and all functionality to make sure that the request matches the RFC7230 standard.
Severity
9.1 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-04-23 15:50 UTC
CWE
- CWE-444 - Inconsistent Interpretation of HTTP Requests ('HTTP Request Smuggling')
Assigner
References
8 references
| URL | Tags |
|---|---|
| https://github.com/puma/puma/security/advisories/… | x_refsource_CONFIRM |
| https://github.com/puma/puma/commit/5bb7d202e24de… | x_refsource_MISC |
| https://www.debian.org/security/2022/dsa-5146 | vendor-advisoryx_refsource_DEBIAN |
| https://security.gentoo.org/glsa/202208-28 | vendor-advisoryx_refsource_GENTOO |
| https://lists.debian.org/debian-lts-announce/2022… | mailing-listx_refsource_MLIST |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
Impacted products
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"redhat_vex": {
"aggregate_severity": "Important",
"current_release_date": "2025-11-21T15:42:19+00:00",
"cve": "CVE-2022-24790",
"id": "CVE-2022-24790",
"initial_release_date": "2022-03-30T00:00:00+00:00",
"product_status:fixed": "7",
"product_status:known_affected": "5",
"product_status:known_not_affected": "87",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "puma-5.6.4: http request smuggling vulnerabilities",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2022/cve-2022-24790.json",
"version": "3"
},
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"aggregate_severity": "important",
"current_release_date": "2026-07-03T04:48:15Z",
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"id": "CVE-2022-24790",
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"product_status:known_not_affected": "4",
"product_status:recommended": "106",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2022-24790",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2022-24790.json",
"version": "27"
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"dataType": "CVE_RECORD",
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}
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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