Is CVE-2026-44087 in the CISA KEV catalog?

No. CVE-2026-44087 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-44087?

CVE-2026-44087 has a CVSS v3 base score of 9.1 (CRITICAL).

What is the EPSS score for CVE-2026-44087?

CVE-2026-44087 has an EPSS score of 0.21% (12th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-44087?

Upgrade apisix to 3.17.0 or later.

CVE & CISA-KEV Catalog

CVE-2026-44087

CRITICAL

9.1

CVSS v3

NVD

Description

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.

CWE-345

How to fix

Remediation Available

apisixNVD

Affected:>= 2.3, < 3.17.0Fixed in:3.17.0CVE-2026-44087derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityNone

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

Exploit Intelligence

0.21%probability of exploitation in 30 days

12thpercentile

Low risk: more likely to be exploited than 12% of all known CVEs.

References

Vendor Advisory1

lists.apache.org

Third-Party Advisory1

openwall.com

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-06-23.