CVE-2026-75020 json
Apache APISIX: ldap-auth plugin cross-subtree identity impersonation
published 2mo ago modified 2mo ago also BIT-apisix-2026-75020 , EUVD-2026-66956
- cvss
- 8.1
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 46%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- bitnami apisix 3.18.0
- apache apisix 3.18.0
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Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2mo ago
Exploit prediction
0.55% chance of exploitation in the next 30 days, higher than 46% of all scored CVEs (FIRST EPSS, 2026-11-11).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 7.0 | CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N |
| CNA | 4.0 | 7.0 | CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
| NVD | 3.1 | 8.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| bitnami | apisix | >=2.11.0, <3.18.0 |
3.18.0 |
Affected products
- Apache Software Foundation Apache APISIX
Classification
- Weakness
-
- CWE-90 Improper Neutralization of Special Elements used in an LDAP Query
References
-
lists.apache.org
/thread/d4007wk6dbl9mxy5h05zxwn8fsg13bxt
vendor-advisory, mailing-list, advisory
-
openwall.com
/lists/oss-security/2026/08/26/14
mailing-list, third-party-advisory, advisory
-
nvd.nist.gov
/vuln/detail/CVE-2026-75020
web
Sources
- CVE List CVE-2026-75020
- NVD CVE-2026-75020
- OSV BIT-apisix-2026-75020
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