How severe is CVE-2026-75020?

CVE-2026-75020 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2026-75020 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-75020?

CVE-2026-75020 affects Apache Apisix. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-75020?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2026-75020 published?

CVE-2026-75020 was published on 2026-08-27 and last updated on 2026-08-31.

CVE-2026-75020

CVE-2026-75020 is a high-severity vulnerability in Apache Apisix with a CVSS 3.x base score of 8.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-90.

Key facts

Severity: High (CVSS 3.x base score 8.1)
CVSS v4: 7.0
EPSS exploit prediction: 1% (44th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-90
Affected product: Apache Apisix
Published: 2026-08-27
Last modified: 2026-08-31

Description

Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection') vulnerability in Apache APISIX. A caller who holds valid credentials for one entry in the LDAP directory can authenticate through APISIX as a consumer mapped to a different entry, one the plugin's configured scope was meant to keep out of reach. This issue affects Apache APISIX: from 2.11.0 through 3.17.0. Users are recommended to upgrade to version 3.18.0, which fixes the issue.

Frequently asked questions

What is CVE-2026-75020?: Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection') vulnerability in Apache APISIX. A caller who holds valid credentials for one entry in the LDAP directory can authenticate through APISIX as a consumer mapped to a different entry, one the plugin's configured scope was meant to keep out of reach. This issue affects Apache APISIX: from 2.11.0 through 3.17.0. Users are recommended to upgrade to version 3.18.0, which fixes the issue.
How severe is CVE-2026-75020?: CVE-2026-75020 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2026-75020 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-75020?: CVE-2026-75020 affects Apache Apisix. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-75020?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2026-75020 published?: CVE-2026-75020 was published on 2026-08-27 and last updated on 2026-08-31.

References

Affected products (1)

cpe:2.3:a:apache:apisix:*:*:*:*:*:*:*:*

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Other CWE-90 (LDAP Injection) vulnerabilities

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CVE-2017-14596 — Critical (CVSS 9.8): In Joomla! before 3.8.0, inadequate escaping in the LDAP authentication plugin can result in a disclosure of a username…

Browse all CWE-90 (LDAP Injection) vulnerabilities →

Threat intelligence

Threat-intel indicators referencing this CVE:

47.84.119.82 (ipv4-addr)