CVE-2026-94276— Apache APISIX: Openid-connect introspection validation issue
Quick assessment
Affected
Apache Software Foundation Apache APISIX
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Apache APISIX 中存在一个身份验证不当（Improper Authentication）漏洞。 当某个路由配置了使用远程内省（remote introspection）的 openid-connect 插件，且授权服务器支持多个颁发者（issuer）时，一个针对某个颁发者内省结果为“有效”的令牌，可能会被错误地接受在仅限制为另一个颁发者的路由上。 该漏洞影响 Apache APISIX 3.12.0 至 3.18.0 版本。 建议用户升级至 3.19.0 版本，该版本已修复此问题。
Possible ATT&CK Techniques 1 AI
T1528 · Steal Application Access Token
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I. Basic Information for CVE-2026-94276
Vulnerability Information
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Vulnerability Title
Apache APISIX: Openid-connect introspection validation issue
Source: CVE Program / CVE List V5
Vulnerability Description
Improper Authentication vulnerability in Apache APISIX.
On a route using openid-connect plugin with remote introspection against an authorization server that serves multiple issuers, a token that introspects as active for one issuer may get accepted on a route restricted to another. This issue affects Apache APISIX: from 3.12.0 through 3.18.0.
Users are recommended to upgrade to version 3.19.0, which fixes the issue.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:L/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
认证机制不恰当
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Apache Software Foundation | Apache APISIX | 3.12.0 ~ 3.18.0 | - |
|
II. Public POCs for CVE-2026-94276
| # | POC Description | Source Link | Shenlong Link |
|---|
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Mailing List Discussions for CVE-2026-94276 (1)
Same Patch Batch · Apache Software Foundation · 2026-10-01 · 28 CVEs total
| CVE-2026-88789 | 8.6 HIGH | Apache Camel Quarkus: Camel Quarkus: Forced Xalan TransformerFactory drops upstream extern |
| CVE-2026-94250 | 8.2 HIGH | Apache APISIX: Batch response aggregation can exhaust worker memory |
| CVE-2026-94212 | 6.4 MEDIUM | Apache APISIX: unauthenticated impersonation issue in saml-auth |
| CVE-2026-94269 | 6.3 MEDIUM | Apache APISIX: Servlet-style normalization creates a route/upstream authorization mismatch |
| CVE-2026-78242 | 5.7 MEDIUM | Apache APISIX: data-mask may fail to redact request headers in logger output |
| CVE-2026-82806 | 5.3 MEDIUM | Apache APISIX: cross-request permission pollution via static permission list mutation |
| CVE-2026-94220 | 2.1 LOW | Apache APISIX: session fixation issue in feishu-auth and dingtalk-auth plugin |
| CVE-2026-56154 | Apache HTTP Server: mod_rewrite use-after-free via %{LA-U:HTTP:...} | |
| CVE-2026-42528 | Apache HTTP Server: mod_dav shared lock overflow | |
| CVE-2026-42356 | Apache HTTP Server: limited RCE for some internal redirects to non-CGI files in CGI direct | |
| CVE-2026-46729 | Apache HTTP Server: mod_heartmonitor denial of service | |
| CVE-2026-47360 | Apache HTTP Server: mod_session: Session cookie not removed during internal redirect | |
| CVE-2026-48005 | Apache HTTP Server: mod_auth_digest reauthentication attack | |
| CVE-2026-56153 | Apache HTTP Server: mod_charset_lite: Heap overflow in finish_partial_char | |
| CVE-2026-63686 | Apache HTTP Server: mod_xml2enc crash on charset conversion failure | |
| CVE-2026-56449 | Apache HTTP Server: mod_proxy_html: crash in dump_content | |
| CVE-2026-57941 | Apache HTTP Server: mod_http2 use-after-free / wild write via shared session->bbtmp re-ent | |
| CVE-2026-58415 | Apache HTTP Server: mod_dav_fs property database read access | |
| CVE-2026-59685 | Apache HTTP Server: Out-of-Bounds Write in ap_directory_walk() Canonical-Name Rewrite on C | |
| CVE-2026-59797 | Apache HTTP Server: mod_ssl SSLRequire allows .htaccess ap_expr file-function |
Showing top 20 of 28 CVEs. View all on vendor page → →
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