No exploitation reportedFix available

CVE-2024-32638

Q: Is CVE-2024-32638 actively exploited?

Active exploitation of CVE-2024-32638 has not been confirmed. Its EPSS score was 1.1% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2024-32638?

CVE-2024-32638 has a CVSS v3 base score of 6.3 (MEDIUM severity), with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.

No exploitation reported by the sources we read.

Published2024-05-02
WeaknessCWE-444

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC

2024-05-0210:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2024-32638?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2024-32638?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD · CISA-ADP · OSV

Apache apisix

Branch	Affected	Fixed in	Source
3.8	= 3.8.0	no fix published	NVD
3.9	= 3.9.0	no fix published	NVD

Apache software foundation apache apisix

Branch	Affected	Fixed in	Source
3.8	= 3.8.0	no fix published	CISA-ADP

apisix

Branch	Affected	Fixed in	Source
3.x	≥ 3.8.0, < 3.9.1	3.9.1	OSV

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Advisories and patches

lists.apache.orgVendor Advisory

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

NVDCVE recordread 2026-10-23
CISA-ADPSSVC decisionnone2024-05-02
OpenCVESSVC decisionnone—
CISA-ADPCVSS 3.16.32024-05-02
CISA-ADPweakness (CWE)CWE-4442024-05-02
CNAweakness (CWE)CWE-444read 2026-10-23
FIRST EPSSEPSS score1.1 %2026-10-22
OSVaffected packages—

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Published: 2024-05-02
Last Modified: 2026-06-17
NVD status: Analyzed

Frequently asked questions

What is CVE-2024-32638?

Is CVE-2024-32638 actively exploited?

Active exploitation of CVE-2024-32638 has not been confirmed. Its EPSS score was 1.1% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2024-32638?

CVE-2024-32638 has a CVSS v3 base score of 6.3 (MEDIUM severity), with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.

Running apisix? Hear about its next vulnerability

Surveillance reads the versions in your stack — a domain, a lockfile or a list — checks each CVE against the ranges its sources publish, and alerts you when one you run is exploited or enters CISA KEV. A version it cannot read stays « version not verified ».

Get alerts for this product CISA KEV additions, October 2026 Search CVEs

No credit card required · No monthly cap on website lookups · 250 API requests/month

Go further

Following what attackers exploit right now? The CISA KEV additions of the month, with their patch deadlines.
Running this software? Vulnerability monitoring alerts you to new vulnerabilities in your products.

Related vulnerabilities

Same product first, then the same vendor advisory and the same publication week.

Back to CVE Database