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Vulnerabilities

Vulnerability · CVE-2026-31923

Cleartext Transmission of Sensitive Information vulnerability in Apache APISIX.

Published Apr 14, 2026 · catalog updated Jun 17, 2026 · Cleartext Transmission of Sensitive

Check if you run it

No confirmed exploitation is on record for CVE-2026-31923. EPSS is 0.37%. Act only if a listed version of Cleartext Transmission of Sensitive is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (Cleartext Transmission of Sensitive).
  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High7.5
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.37%
Remediation
Advisory link
Affected products
cpe apache/apisix

Cleartext Transmission of Sensitive Information vulnerability in Apache APISIX. This can occur due to in openid-connect plugin configuration being set to false by default. This issue affects Apache APISIX: from 0.7 through 3.15.0. Users are recommended to upgrade to version 3.16.0, which fixes the issue.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe apache/apisixversion unspecified

How to fix CVE-2026-31923

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-31923. EPSS is 0.37%. Act only if a listed version of Cleartext Transmission of Sensitive is installed.

Which versions are affected?

Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-319: Cleartext Transmission of Sensitive Information. EPSS 0.37%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Apr 14, 2026 · NIST NVD

    Detected

    Cleartext Transmission of Sensitive Information vulnerability in Apache APISIX. This can occur due to in openid-connect plugin configuration being set to false by default. This issue affects Apache APISIX: from 0.7 through 3.15.0. Users are recommended to upgrade to version 3.16.0, which fixes the issue.

  2. Jun 17, 2026 · NIST NVD

    Updated

    Cleartext Transmission of Sensitive Information vulnerability in Apache APISIX. This can occur due to in openid-connect plugin configuration being set to false by default. This issue affects Apache APISIX: from 0.7 through 3.15.0. Users are recommended to upgrade to version 3.16.0, which fixes the issue.

Sources

  • CVE.orgVulnerability recordCVE-2026-31923

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-31923

    30-day exploitation probability 0.4%

    first.org
  • NIST NVDVulnerability recordCVE-2026-31923

    Cleartext Transmission of Sensitive Information vulnerability in Apache APISIX. This can occur due to in openid-connect plugin configuration being set to false by default. This issue affects Apache APISIX: from 0.7 through 3.15.0. Users are recommended to upgrade t

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.