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

published 2026-04-14 6 mo ago modified 2026-10-26 13 d ago also BIT-apisix-2026-31924 , EUVD-2026-22227

cvss: 5.3; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.2%; EPSS 0.2% chance of exploitation in 30 days, percentile 14%
public exploits: 0; none known

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.

Patch / fix

fixed in 1

bitnami apisix 3.16.0

CISA SSVC

Exploitation: none
Automatable: yes
Technical impact: partial
Assessed: 6 mo ago (2026-04-14)

Exploit prediction

0.24% chance of exploitation in the next 30 days, higher than 14% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CISA ADP	3.1	5.3	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CNA	3.1	5.3	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
OSV	3.1	5.3	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Affected packages

ecosystem	package	affected	fixed in
bitnami	apisix	>=2.99.0, <3.16.0	3.16.0

Affected products

Apache Software Foundation Apache APISIX

Classification

Weakness

CWE-319 Cleartext Transmission of Sensitive Information

References

lists.apache.org /thread/sqxjjlt87c1q28db28ztdxylm5pgwohq
vendor-advisory, mailing-list, advisory
openwall.com /lists/oss-security/2026/04/14/2
mailing-list, third-party-advisory, advisory
nvd.nist.gov /vuln/detail/CVE-2026-31924
web

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.

Summary