CVE-2024-32638
Apache APISIX: Forward-Auth Request Smuggling
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- Low
Exploit likelihood
What each source reports
CVE List Score used
Apache APISIX: Forward-Auth Request Smuggling
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.
- Record
CVE-2024-32638- CVSS 3.1
- 6.3 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L - Weakness
- CWE-444, CWE-444
- Updated
- 2026-11-02
EUVDEUVD-2024-30440
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.
- Record
EUVD-2024-30440- CVSS 3.1
- 6.3 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-8g74-32fg-5ghc
Inconsistent Interpretation of HTTP Requests ('HTTP Request Smuggling') vulnerability in Apache...
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.
- Record
GHSA-8g74-32fg-5ghc- CVSS 3.1
- 6.3 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L - Weakness
- CWE-444
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2024-32638- CVSS 3.1
- 6.3 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L - Weakness
- CWE-444
- Updated
- 2026-11-02
OSV
Apache APISIX: Forward-Auth Request Smuggling
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.
- Record
CVE-2024-32638- CVSS 3.1
- 6.3 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L - Weakness
- CWE-444
- Updated
- 2026-11-02
OSVBIT-apisix-2024-32638 No score
Apache APISIX: Forward-Auth Request Smuggling
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.
- Record
BIT-apisix-2024-32638- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
apisixBitnami |
3.8.0 up to 3.9.1 | 3.9.1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2024-32638 is a medium vulnerability (CVSS 6.3) in Apache Apisix, published May 2, 2024. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.06%, the 64th percentile. Fixed in apisix 3.9.1.