CVE-2026-31924: Apache APISIX: Plugin tencent-cloud-cls log export uses plaintext HTTP

Severity: medium (CVSS 5.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-04-14 · updated 2026-10-26
Weakness: CWE-319

Description

Cleartext Transmission of Sensitive Information vulnerability in Apache APISIX. tencent-cloud-cls log export uses plaintext HTTP This issue affects Apache APISIX: from 2.99.0 through 3.15.0. Users are recommended to upgrade to version 3.16.0, which fixes the issue.

Affected products

Apache Software Foundation Apache APISIX: from 2.99.0 before 3.16.0 — fixed in 3.16.0

How to fix

Upgrade to a fixed version: Apache Software Foundation Apache APISIX 3.16.0. Check the vendor advisory for mitigations.

References

https://lists.apache.org/thread/sqxjjlt87c1q28db28ztdxylm5pgwohq
http://www.openwall.com/lists/oss-security/2026/04/14/2

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