CVE-2026-49443— authentik: `UserSourceConnection.user` and `GroupSourceConnection.group` are changeable through the API
Possible ATT&CK Techniques 1AI
T1199 · Trusted RelationshipGet alerts for future matching vulnerabilitiesLog in to subscribe
I. Basic Information for CVE-2026-49443
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View Shenlong Deep Dive ↗ Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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
authentik: `UserSourceConnection.user` and `GroupSourceConnection.group` are changeable through the API
Source: NVD (National Vulnerability Database)
Vulnerability Description
authentik is an open-source identity provider. Prior to versions 2025.12.6, 2026.2.4, and 2026.5.1, an attacker with the ability to change a source connection, and an account in one of the configured sources can log into any account. This issue has been patched in versions 2025.12.6, 2026.2.4, and 2026.5.1.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
认证机制不恰当
Source: NVD (National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| goauthentik | authentik | < 2025.12.6 | - |
II. Public POCs for CVE-2026-49443
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
Qwen3.6-35B-A3B · 8039 chars
Pro+ exclusive includes:
Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
Exploit chain & mitigation
POC zip download
100+ AI POC generations per month
III. Intelligence Information for CVE-2026-49443
请登录查看更多情报信息。
Vendor Advisories for CVE-2026-49443 (1)
Same Patch Batch · goauthentik · 2026-06-02 · 6 CVEs total
| CVE-2026-49448 | 9.8 CRITICAL | authentik: SourceStage bypass via empty POST |
| CVE-2026-42849 | 9.3 CRITICAL | authentik: Reflected XSS in SFE AutosubmitStage allows IDP account takeover |
| CVE-2026-47201 | 8.5 HIGH | authentik: XML Signature Wrapping in SAML Source ACS allows authentication as arbitrary fe |
| CVE-2026-41577 | authentik: SAML source does not validate Conditions, timing, or audience on assertions | |
| CVE-2026-41569 | authentik: WS-Federation wreply origin bypass can exfiltrate signed login responses to att |
IV. Related Vulnerabilities
Same product: authentik
- CVE-2026-49448
authentik: SourceStage bypass via empty POST - CVE-2026-47201
authentik: XML Signature Wrapping in SAML Source ACS allows - CVE-2026-42849
authentik: Reflected XSS in SFE AutosubmitStage allows IDP a - CVE-2026-41569
authentik: WS-Federation wreply origin bypass can exfiltrate - CVE-2026-41577
authentik: SAML source does not validate Conditions, timing,
Same vendor: goauthentik
- CVE-2026-49448
authentik: SourceStage bypass via empty POST - CVE-2026-47201
authentik: XML Signature Wrapping in SAML Source ACS allows - CVE-2026-42849
authentik: Reflected XSS in SFE AutosubmitStage allows IDP a - CVE-2026-41569
authentik: WS-Federation wreply origin bypass can exfiltrate - CVE-2026-41577
authentik: SAML source does not validate Conditions, timing,
Same weakness: CWE-287
- CVE-2026-45289
CloudburstMC Protocol: Partially missing validation for FULL - CVE-2026-49448
authentik: SourceStage bypass via empty POST - CVE-2026-10619
sayan365 student-management-system improper authentication - CVE-2026-5076
ARMember Premium <= 7.3.1 - Insecure Password Reset Mechanis - CVE-2026-10611
OTP bypass via plugin-based LDAP authentication in MISP when
V. Comments for CVE-2026-49443
No comments yet