CVE-2026-94212— Apache APISIX: unauthenticated impersonation issue in saml-auth
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 中存在一个加密签名验证不当的漏洞。 在默认配置下，任何未经身份验证的攻击者都可以冒充受 SAML 认证插件保护的所有路由中的任意用户。该漏洞影响 Apache APISIX 的 3.17.0 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 2 AI
T1550.001 · Application Access Token T1550 · Use Alternate Authentication Material
Get alerts for future matching vulnerabilities
Log in to subscribe
I. Basic Information for CVE-2026-94212
Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗
Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.
Vulnerability Title
Apache APISIX: unauthenticated impersonation issue in saml-auth
Source: CVE Program / CVE List V5
Vulnerability Description
Improper verification of cryptographic signature vulnerability in Apache APISIX.
Any unauthenticated attacker could impersonate any user on every route protected by the saml-auth plugin under default configuration. This issue affects Apache APISIX: from 3.17.0 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:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
密码学签名的验证不恰当
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Apache Software Foundation | Apache APISIX | 3.17.0 ~ 3.18.0 | - |
|
II. Public POCs for CVE-2026-94212
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
Premium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2026-94212
请登录查看更多情报信息。
Mailing List Discussions for CVE-2026-94212 (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-2026-94269 | 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-2026-94276 | 5.1 MEDIUM | Apache APISIX: Openid-connect introspection validation issue |
| 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 → →
IV. Related Vulnerabilities
Same product: Apache APISIX
-
CVE-2026-94276
Apache APISIX: Openid-connect introspection validation issue -
CVE-2026-94269
Apache APISIX: Servlet-style normalization creates a route/u -
CVE-2026-94250
Apache APISIX: Batch response aggregation can exhaust worker -
CVE-2026-94220
Apache APISIX: session fixation issue in feishu-auth and din -
CVE-2026-82806
Apache APISIX: cross-request permission pollution via static
Same vendor: Apache Software Foundation
-
CVE-2026-63686
Apache HTTP Server: mod_xml2enc crash on charset conversion -
CVE-2026-93546
Apache HTTP Server: mod_dav_fs namespace overflow -
CVE-2026-79768
Apache HTTP Server: mod_userdir information disclosure -
CVE-2026-73637
Apache HTTP Server: mod_auth_digest DoS attack -
CVE-2026-73636
Apache HTTP Server: mod_auth_digest one-time-nonce replay at
Same weakness: CWE-347
-
CVE-2026-103245
n8n before 1.123.80, 2.39.6, and 2.40.1 Missing Webhook Sign -
CVE-2026-87004
Tugtainer: OIDC id_token claims accepted without signature/a -
CVE-2026-47554
NVIDIA Linux驱动内存压力下签名验证绕过漏洞 -
CVE-2026-102508
Apache PLC4X: OPC UA secure channel: integrity bypass, unver -
CVE-2026-91191
Lantronix G520 Series Cellular Gateway Improper Verification
V. Comments for CVE-2026-94212
No comments yet