CVE WatchJul 15, 2026

CVE-2026-55954

Authentication Bypass by Spoofing vulnerability in ueberauth ueberauth_apple allows account takeover via unvalidated ID token claims. The U

CVSS

—

No CVSS

EPSS

0.4%

p33

KEV

—

Exploit Today

0-100

Published: Jul 14, 2026 · Last modified: Jul 15, 2026 · CWE-290

EPSS · 30d

0.4%EPSS · 30 days0.4%

2026-07-152026-07-20

Technical description

Authentication Bypass by Spoofing vulnerability in ueberauth ueberauth_apple allows account takeover via unvalidated ID token claims. The Ueberauth.Strategy.Apple.Token.payload/2 function verifies the JWT signature of the callback id_token against Apple's JWKS but does not validate any registered claims. The iss, aud, exp, and iat claims are read from the token and passed on to Ueberauth.Strategy.Apple.handle_callback!/1, which derives the logged-in user's uid and email directly from the unvalidated sub claim. An attacker who obtains any Apple-signed ID token bearing the victim's sub (via a captured expired token, or via an ID token issued to a sibling client in the same Apple developer team) can replay it against the vulnerable callback and be authenticated as the victim. The absent exp check makes stolen tokens usable indefinitely, and the absent aud check enables cross-application account takeover across clients that share an Apple developer team. This issue affects ueberauth_apple: from 0.1.0 before 0.6.2.

Official references

Related CVEs

CVECVSSEPSSKEVRExploitTitleMod.

CVE-2018-53539.8 CRI

95.4%

——29The custom GINA/CP module in Zoho ManageEngine ADSelfService Plus before 5.5 build 5517 allows remote attackers to execute code and escalate privileges via spoofing. It does not authenticate the intended server before opening a browser window. An unauthenticated attacker capable of conducting a spoofing attack can redirect the browser to gain execution in the context of the WinLogon.exe process. If Network Level Authentication is not enforced, the vulnerability can be exploited via RDP. Additionally, if the web server has a misconfigured certificate then no spoofing attack is required12d CVE-2020-288567.5 HIG

82.4%

——25OpenAsset Digital Asset Management (DAM) through 12.0.19 does not correctly determine the HTTP request's originating IP address, allowing attackers to spoof it using X-Forwarded-For in the header, by supplying localhost address such as 127.0.0.1, effectively bypassing all IP address based access controls.12d CVE-2018-53548.8 HIG

76.6%

——23The custom GINA/CP module in ANIXIS Password Reset Client before version 3.22 allows remote attackers to execute code and escalate privileges via spoofing. When the client is configured to use HTTP, it does not authenticate the intended server before opening a browser window. An unauthenticated attacker capable of conducting a spoofing attack can redirect the browser to gain execution in the context of the WinLogon.exe process. If Network Level Authentication is not enforced, the vulnerability can be exploited via RDP.12d CVE-2026-242709.8 CRI

53.9%

——16NVIDIA AIStore framework contains a vulnerability where an attacker could bypass authentication. A successful exploit of this vulnerability might lead to denial of service, escalation of privileges, information disclosure, and data tampering.19d CVE-2026-227979.9 CRI

43.7%

——13An issue was discovered in OpenStack keystonemiddleware 10.5 through 10.7 before 10.7.2, 10.8 and 10.9 before 10.9.1, and 10.10 through 10.12 before 10.12.1. The external_oauth2_token middleware fails to sanitize incoming authentication headers before processing OAuth 2.0 tokens. By sending forged identity headers such as X-Is-Admin-Project, X-Roles, or X-User-Id, an authenticated attacker may escalate privileges or impersonate other users. All deployments using the external_oauth2_token middleware are affected.15h CVE-2026-75077.5 HIG

43.3%

——13A session fixation vulnerability was found in Keycloak's login-actions endpoints. An unauthenticated attacker could exploit this flaw by pre-creating an authentication session and tricking a victim into visiting a maliciously crafted link. By leveraging the /login-actions/restart endpoint—which processes session handles without adequate CSRF protection or cookie ownership validation—an attacker can reset the authentication flow state. This causes Single Sign-On (SSO) to authenticate the victim transparently upon clicking the link, allowing the attacker to hijack the required-action form without needing the victim's credentials. A successful exploit could lead to complete account takeover, including highly privileged administrative accounts.6d