CVE-2026-49265

A flaw was found in oauthlib. A timing side-channel vulnerability in the Proof Key for Code Exchange PKCE validation process allows a remote attacker to recover secret verification codes. Because comparison operations do not execute in constant time, an attacker who has intercepted an authorizati...

auth

PlaceOS Authentication ENV VARS If a sentry Data Source Name is configured SENTRYDSN=https://@.ingest.sentry.io/ A shared secret for encrypting cookies SECRETKEYBASE=84b04ea4259542f365 JWT Private key JWTSECRET=Base64 Encoded RSA PRIVATE KEY Database name and host RETHINKDBDB=placedevelopment...

CVE-2026-73309

CVE-2026-73309: Empty OAuth2 credentials bypass XenForo before 2.3.13 can skip OAuth2 client-secret and PKCE verification when an empty string reaches the token endpoint. What happens The endpoint checks whether clientsecret and codeverifier keys exist, then performs the comparisons only when the...

CVE-2026-3456-OAuth2-PKCE-Race-Condition-Account-Takeover-

8. CVE-2026-3456 – OAuth2 PKCE Race Condition Account Takeover Overview A race condition in the OAuth2 authorization server allows an attacker to reuse a victim’s authorization code before the legitimate client redeems it, by guessing or brute‑forcing the PKCE codeverifier within a small time...

CVE-2026-107503

Unvalidated environments URL allows OAuth authorization code + PKCE verifier theft and account takeover via injected OIDC authority in Ditto Explorer in Eclipse Ditto Ditto Explorer 3.6.0,3.9.7 allows a craft link set an attacker-controlled OIDC authority with autoSso enabled. The UI then...

Exploit for CVE-2026-59358

abraxaslabs.tech · github.com/abraxas ·&...

CVE-2026-105119

OpenAM before 16.1.3 applies its OAuth2 Provider PKCE enforcement only to authorization requests whose responsetype is exactly code, so codes issued through OpenID Connect hybrid flows code token, code idtoken, code token idtoken carry no bound challenge. An attacker who intercepts such a code ca...

EUVD-2026-92023

OpenAM before 16.1.3 applies its OAuth2 Provider PKCE enforcement only to authorization requests whose responsetype is exactly code, so codes issued through OpenID Connect hybrid flows code token, code idtoken, code token idtoken carry no bound challenge. An attacker who intercepts such a code ca...

CVE-2026-105119

OpenAM versions prior to 16.1.3 are vulnerable to a PKCE enforcement bypass via OAuth 2.0 hybrid flows . The root cause is that the software only applies Proof Key for Code Exchange (PKCE) enforcement to authorization requests where the response_type is exactly code. Consequently, codes issued th...

CVE-2026-105119 OpenAM before 16.1.3 PKCE Enforcement Bypass via OAuth 2.0 Hybrid Flows

OpenAM before 16.1.3 applies its OAuth2 Provider PKCE enforcement only to authorization requests whose responsetype is exactly code, so codes issued through OpenID Connect hybrid flows code token, code idtoken, code token idtoken carry no bound challenge. An attacker who intercepts such a code ca...

CVE-2026-105119 OpenAM before 16.1.3 PKCE Enforcement Bypass via OAuth 2.0 Hybrid Flows

OpenAM before 16.1.3 applies its OAuth2 Provider PKCE enforcement only to authorization requests whose responsetype is exactly code, so codes issued through OpenID Connect hybrid flows code token, code idtoken, code token idtoken carry no bound challenge. An attacker who intercepts such a code ca...

CVE-2026-105119 OpenAM before 16.1.3 PKCE Enforcement Bypass via OAuth 2.0 Hybrid Flows

OpenAM before 16.1.3 applies its OAuth2 Provider PKCE enforcement only to authorization requests whose responsetype is exactly code, so codes issued through OpenID Connect hybrid flows code token, code idtoken, code token idtoken carry no bound challenge. An attacker who intercepts such a code ca...

PT-2026-104580

Name of the Vulnerable Software and Affected Versions OpenAM versions prior to 16.1.3 Description The OAuth2 Provider PKCE enforcement is only applied to authorization requests where the response type is exactly code. Consequently, codes issued via OpenID Connect hybrid flows such as code token,...

CVE-2026-105119: Improper Authorization

OpenAM before 16.1.3 applies its OAuth2 Provider PKCE enforcement only to authorization requests whose responsetype is exactly code, so codes issued through OpenID Connect hybrid flows code token, code idtoken, code token idtoken carry no bound challenge. An attacker who intercepts such a code ca...

Oauthlib: Timing Attack Vulnerability in PKCE code_verifier Comparison (CWE-208)

SummaryA timing side-channel vulnerability exists in the PKCE RFC 7636 implementation of the Authorization Code Grant flow. The codechallengemethodplain function uses Python's standard == operator for string comparison instead of a constant-time comparison function, potentially allowing...

Rocky Linux 10.2 [CIQ] Security Update: rest / rest-debuginfo / rest-debugsource / rest-devel (crlsa-2026_47085)

The Rocky Linux 10.2 host has packages installed that are affected by a vulnerability as referenced in the CIQ crlsa-202647085 advisory. librest: weak random number generation in PKCE implementation CVE-2026-16615 Tenable has extracted the preceding description block directly from the CIQ securit...

Timing Attack

Overview Affected versions of this package are vulnerable to Timing Attack via the codechallengemethods256 and codechallengemethodplain functions in oauthlib/oauth2/rfc6749/granttypes/authorizationcode.py, which compare PKCE code verifiers and challenges using the non-constant-time == operator. A...

Oauthlib: Timing Attack Vulnerability in PKCE code_verifier Comparison (CWE-208)

Summary A timing side-channel vulnerability exists in the PKCE RFC 7636 implementation of the Authorization Code Grant flow. The codechallengemethodplain function uses Python's standard == operator for string comparison instead of a constant-time comparison function, potentially allowing...

Official MCP Python SDK Flaw Can Let Malicious Servers Steal OAuth Credentials

A malicious MCP server could trick an application built on the official MCP Python SDK into handing over the OAuth credentials it uses to log in to a real service, the SDK's maintainers said in a security advisory. Affected versions sent the client secret, the authorization code, and the PKCE pro...

PT-2026-102981

Name of the Vulnerable Software and Affected Versions oauthlib affected versions not specified Description A timing side-channel exists in the PKCE implementation of the Authorization Code Grant flow. The functions code challenge method plain and code challenge method s256 in the file...