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CVE-2024-32638

Apache APISIX: Forward-Auth Request Smuggling

MEDIUM
6.3
CVSS Score
Published: May 2, 2024 at 09:20 AM UTC
Updated: June 17, 2026 at 07:30 AM UTC
1 product affected across 1 vendorApisix

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Severity
MEDIUM6.3
Exploit prediction
EPSS 1%
SSVC
No known exploit

Description

Inconsistent Interpretation of HTTP Requests ('HTTP Request Smuggling') vulnerability in Apache APISIX when using `forward-auth` plugin.This issue affects Apache APISIX: from 3.8.0, 3.9.0. Users are recommended to upgrade to version 3.8.1, 3.9.1 or higher, which fixes the issue.

Affected

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

Apisix· Apache
95%
3.8.0 ≤ v ≤ 3.9.03.8.03.9.0

Remediation

No guide yet

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

Patch and advisory references

References (2)

Mailing ListThird Party Advisory
Source: [email protected]
http://www.openwall.com/lists/oss-security/2024/05/02/2
Vendor AdvisoryMailing List
Source: [email protected]
https://lists.apache.org/thread/ngvgxllw4zn4hgngkqw2o225kf9wotov

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

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

CVSS

6.3MEDIUMCISA-ADP
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
LOW
Availability
LOW
Vector?

Quick Info

StatusANALYZED
CWE
CWE-444

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