CVE-2021-37147

Request Smuggling - LF line ending

View on CVE.org

Published Nov 3, 2021 CVSS 3.1 · 7.5 High EPSS 2.5% KEV · Not listed

Description

Improper input validation vulnerability in header parsing of Apache Traffic Server allows an attacker to smuggle requests. This issue affects Apache Traffic Server 8.0.0 to 8.1.2 and 9.0.0 to 9.1.0.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Apache Software Foundation

Apache Traffic Server

affected

Version	Status	Constraints
`8.0.0 to 8.1.2 and 9.0.0 to 9.1.0`	affected	—

Configuration 1 [-]

OR	cpe:2.3:a:apache:traffic_server::::::::
	cpe:2.3:a:apache:traffic_server::::::::

Configuration 2 [-]

OR	cpe:2.3:o:debian:debian_linux:10.0:::::::*
	cpe:2.3:o:debian:debian_linux:11.0:::::::*

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

Source	ID	Title
Debian DSA	DSA-5153-1	trafficserver security update

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact High

Availability Impact None

User Interaction None

No CVSS v3.0

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact None

Integrity Impact Partial

Availability Impact None

This CVE is not in the KEV list.

Exploit prediction score: 2.5% (2.519% probability within 30 days)

Key SSVC decision points have not yet been added.

References

Link	Providers
https://lists.apache.org/thread/k01797hyncx53659wr3o72s5cvkc3164
https://www.debian.org/security/2022/dsa-5153

History

No history.

Subscriptions

Apache Traffic Server

Debian Debian Linux

Weaknesses

Sources

CVE record Updated: Aug 4, 2024, 1:16 AM

Status: PUBLISHED
Assigner: apache
Published: Nov 3, 2021, 3:20 PM
Updated: Aug 4, 2024, 1:16 AM
Reserved: Jul 21, 2021, 12:00 AM

View source JSON

Vulnrichment No data

No data.

NVD Updated: Jun 17, 2026, 4:00 AM

Status: Modified
Published: Nov 3, 2021, 4:15 PM
Modified: Jun 17, 2026, 4:00 AM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment No data

No data.

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