CVE-2026-94612Network attack vectorHinoki check available

Authentication bypass via SAML assertion confusion and replay

Published Sep 24, 2026 · Updated Sep 24, 2026

Authentication bypass in affected authentik releases allows remote attackers with a valid SAML assertion to sign in as its named user. The SAML Source validates signature and lifetime but neither binds the assertion to its issuer, audience, or originating login request nor records accepted assertions for replay detection. Only SAML Sources are affected; exploitation requires possession of a valid assertion, while SAML Providers and other Source types are unaffected.

CVSS severity7.4
High
EPSS probability0.27%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Authentication bypass in affected authentik releases allows remote attackers with a valid SAML assertion to sign in as its named user. The SAML Source validates signature and lifetime but neither binds the assertion to its issuer, audience, or originating login request nor records accepted assertions for replay detection. Only SAML Sources are affected; exploitation requires possession of a valid assertion, while SAML Providers and other Source types are unaffected.

The record

CVE
CVE-2026-94612
Published
Sep 24, 2026
Updated
Sep 24, 2026
Vendor
Authentik Security Inc.
Product
authentik
Classifications
CWE-287, CWE-345, T1550.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 24, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 24, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 2026.2.7
  2. Affected versionversion=>= 2026.5.0, < 2026.5.7
  3. Affected versionversion=>= 2026.8.0, < 2026.8.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Authentik Security Inc. · authentikversion=< 2026.2.7; version=>= 2026.5.0, < 2026.5.7; version=>= 2026.8.0, < 2026.8.2

Published CVSS scores

7.4GitHubCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-287Improper Authentication
CWE-345Insufficient Verification of Data Authenticity
T1550.001Application Access Token

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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