CVSS 9.1 · CRITICAL

CVE-2026-44087

Insufficient Verification of Data Authenticity vulnerability in Apache APISIX. The openid-connect plugin under default configuration has an attack surface that allows the attacker to spoof identity headers allowing the attacker to get unauthorized access the protected resources. This issue affects Apache APISIX: from 2.3 through 3.16.0. Users are recommended to upgrade to version 3.17.0, which fixes the issue.

View on NVD

Analysis

Apache APISIX is vulnerable to a critical authentication bypass in its openid-connect plugin. Attackers can spoof identity headers to gain unauthorized access to protected backend resources. This affects versions 2.3 through 3.16.0; users should upgrade to 3.17.0 immediately.

Relevant roles

BackendCyberSecurityCloudKubernetesDocker

Severity

Score: 9.1(CRITICAL)

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

AV: NETWORK

AC: LOW

PR: NONE

UI: NONE

S: UNCHANGED

C: HIGH

I: HIGH

A: NONE

Weakness (CWE): CWE-345

EPSS

Probability of exploitation (next 30 days): 0.0017 (0.2%)

Percentile: 7.0%

EPSS: 2026-06-23

Affects

apache:apisix

Technical description

Published: 6/19/2026, 2:16:22 PM

Last modified: 6/23/2026, 3:11:13 PM

References

How to read this card

Actively exploited

KEV (Known Exploited Vulnerabilities) is CISA's catalog of CVEs confirmed as actively exploited in the real world. If a CVE is on KEV, someone is already using it in attacks.

CVSS 10.0

CVSS 10.0 — máxima severidad teórica. Explotable de forma remota, sin privilegios, con impacto total. Aún no confirmada como explotada en el mundo real, pero parchea ya.

AI-recommended

Un modelo de lenguaje revisó el CVE y consideró que afecta a software ampliamente desplegado o herramientas comunes de desarrollo. Un humano del equipo aprobó la publicación antes de que llegara aquí.

Categorías de impacto que evalúa la IA

widely_deployed_infra — kernel Linux, OpenSSL, glibc, k8s, Docker, nginx, OpenSSH.

popular_dev_tooling — Node.js, Python, Go, React, Next.js, librerías comunes de npm/pip.

common_consumer_software — Chrome, Firefox, Windows, macOS, apps móviles populares.

enterprise_saas — GitHub, GitLab, Atlassian, Salesforce, Cisco, Fortinet, Ivanti.

niche_software — CMS regionales, herramientas de hobby, librerías de poco uso.

not_relevant — firmware específico de proveedor, software descontinuado.

EPSS — EPSS (Exploit Prediction Scoring System) by FIRST.org estimates the probability that a CVE will be exploited in the next 30 days. Range is 0 to 1; very fresh CVEs typically score low until evidence accumulates.