CVE-2026-94212NVD

Vulnerability Summary

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.

Severity Level

MEDIUM(6.4)

Published Date

Oct 1, 2026

Last Modified

Oct 1, 2026

Exploitation Status

No confirmed exploitation yet

EPSS Score (30-Day)

0.27%Probability

Root Weakness (CWE)

CWE-347: Unknown/Unlisted Weakness ↗

Refer to the official MITRE database for detailed architectural specifications regarding this weakness.

CVSS v4.0 Base Metrics — Score 6.4 (MEDIUM)

Attack VectorNetwork

Attack ComplexityLow

Attack RequirementsNone

Privileges RequiredLow

User InteractionNone

Confidentiality (Vulnerable System)None

Integrity (Vulnerable System)None

Availability (Vulnerable System)None

Confidentiality (Subsequent System)High

Integrity (Subsequent System)High

Availability (Subsequent System)None

Affected & Patched Versions

Affected Versions

Apache Software Foundation Apache APISIX >= 3.17.0 and <= 3.18.0

Patched Versions

Apache Software Foundation Apache APISIX 3.18.0

🎁7-Day Free Trial — Try Pro or Team, no card required.

📧Email Delivery — Threat intel straight to your inbox.

♾️Unlimited Vendors — Track your entire stack.

🚨All New CVEs — Be the first to know.

📈EPSS Spike Alerts — Catch rising risk before it peaks.

🎯Custom EPSS/CVSS — Filter noise, focus on risk.

🛡️Exploit Intel — A 2nd confirmed-exploit signal beyond KEV.

🐙GitHub Issues — Auto-tracked, no duplicates.

📬Weekly Digest — One clean summary, not inbox spam.

🏷️Watchlist Groups — Tag alerts by team (Infra/AppSec/SOC).

💬Webhooks — Slack & Teams integration.

🔀Smart Routing — Critical alerts to one channel, rest to another.

🚫Ad-Free — Uninterrupted experience.