EUVD-2026-63189

Punk::OAuth2 versions before 0.03 for Perl allow an attacker-chosen off-site redirect after login because sameoriginpath accepts a backslash or tab in the return parameter. oauth2login reads the return parameter from the initiation request, runs sameoriginpath over it, and stores the survivor in...

CVE-2026-75628

Punk::OAuth2 for Perl (versions before 0.03) contains an open redirect vulnerability in the same_origin_path function used by oauth2_login. The check rejects values that don't begin with a slash, have a slash as the second byte, or contain CR/LF, but accepts a backslash and a tab . Because the UR...

CVE-2026-75628 Punk::OAuth2 versions before 0.03 for Perl allow an attacker-chosen off-site redirect after login because same_origin_path accepts a backslash or tab in the return parameter

Punk::OAuth2 versions before 0.03 for Perl allow an attacker-chosen off-site redirect after login because sameoriginpath accepts a backslash or tab in the return parameter. oauth2login reads the return parameter from the initiation request, runs sameoriginpath over it, and stores the survivor in...

Cross-site Scripting (XSS)

Overview Affected versions of this package are vulnerable to Cross-site Scripting XSS via the DefaultConsentPage process. An attacker can execute arbitrary JavaScript code in the context of the user's browser by crafting an OAuth2 authorization request containing a malicious value that is stored...

PT-2026-78925

Name of the Vulnerable Software and Affected Versions n8n versions prior to 1.123.69 n8n versions prior to 2.33.4 n8n versions prior to 2.34.1 Description An SSRF Server-Side Request Forgery protection bypass exists during the OAuth2 credential authorization-code-to-access-token exchange. While...

Timing Attack

Overview org.springframework.security:spring-security-core is a package that provides security services for the Spring IO Platform. Affected versions of this package are vulnerable to Timing Attack via the comparison of sensitive values using standard string equality rather than constant-time...

Cross-site Scripting (XSS)

Overview Affected versions of this package are vulnerable to Cross-site Scripting XSS in the DefaultConsentPage process. An attacker can execute arbitrary scripts in the context of the user's browser by crafting an OAuth2 authorization request containing a malicious value that is stored server-si...

EUVD-2026-62737

Etherpad is a real-time collaborative editor. From 2.1.0 until 3.1.0, Etherpad's src/node/handler/APIHandler.ts authorizes requests to /api/2/ in the authorizationcode OAuth path by using requiredClaims with the admin claim. This check requires only that the claim exists, while...

CVE-2026-55089 Etherpad: JWT `admin` claim presence-only check lets non-admin OAuth users invoke every Etherpad HTTP API endpoint

Etherpad is a real-time collaborative editor. From 2.1.0 until 3.1.0, Etherpad's src/node/handler/APIHandler.ts authorizes requests to /api/2/ in the authorizationcode OAuth path by using requiredClaims with the admin claim. This check requires only that the claim exists, while...

CVE-2026-55089 Etherpad: JWT `admin` claim presence-only check lets non-admin OAuth users invoke every Etherpad HTTP API endpoint

Etherpad is a real-time collaborative editor. From 2.1.0 until 3.1.0, Etherpad's src/node/handler/APIHandler.ts authorizes requests to /api/2/ in the authorizationcode OAuth path by using requiredClaims with the admin claim. This check requires only that the claim exists, while...

curl: curl: Information disclosure via OAuth2 bearer token leakage during HTTP(S) redirect

A flaw was found in curl. When an OAuth2 bearer token is used for an HTTPS transfer that redirects to a second URL, curl could unintentionally leak the token. This occurs if the second hostname has entries in the .netrc file, allowing the bearer token intended for the first host to be sent to the...

CVE-2026-55987

A flaw was found in Gitea. An attacker can reactivate an administrator-deactivated account by signing in via OAuth2, specifically when using authentication sources that do not utilize refresh tokens. This bypasses intended security controls, allowing unauthorized access to previously deactivated...

curl security update

An update is available for curl. This update affects Rocky Linux 9. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list The curl packages provide the libcurl library and the curl utility for downloadi...

CRLF Injection

Apache CXF is vulnerable to CRLF Injection. The vulnerability is due to unsanitized clientId values from HTTP requests being directly included in OAuth2 server log messages, which allows an attacker to inject arbitrary content or forged log entries into server log files...

Authentication Bypass

org.apache.cxf, cxf-rt-rs-security-oauth2 is vulnerable to an Authentication Bypass. The vulnerability is due to a missing throw statement in the security context check, which allows an unauthenticated network attacker to access the /services/oauth2/introspect endpoint and perform token...

Improper Access Control

org.apache.cxf, cxf-rt-rs-security-oauth2 is vulnerable to an improper access control. The vulnerability is due to an inverted IP address validation check that rejects legitimate requests from the bound IP address while allowing requests from other IP addresses, which allows an attacker to bypass...

Important: Red Hat Security Advisory: curl security update

An update for curl is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the...

curl: curl: Information disclosure via OAuth2 bearer token leakage during HTTP(S) redirect

A flaw was found in curl. When an OAuth2 bearer token is used for an HTTPS transfer that redirects to a second URL, curl could unintentionally leak the token. This occurs if the second hostname has entries in the .netrc file, allowing the bearer token intended for the first host to be sent to the...

curl: curl: Information disclosure via OAuth2 bearer token leakage during HTTP(S) redirect

A flaw was found in curl. When an OAuth2 bearer token is used for an HTTPS transfer that redirects to a second URL, curl could unintentionally leak the token. This occurs if the second hostname has entries in the .netrc file, allowing the bearer token intended for the first host to be sent to the...

curl security update

8.12.1-4.4 - fix proxy environment variable change detection CVE-2026-8927 8.12.1-4.el102.3 - fix HTTP Negotiate connection reuse auth bypass CVE-2026-1965 - fix OAuth2 bearer token leak via redirect and netrc CVE-2026-3783 - fix proxy connection reuse with wrong credentials CVE-2026-3784...