CVE-2026-88880: URL Redirection to Untrusted Site

Renovate before 44.11.3 fails to validate Link header destinations when following GitLab server pagination, allowing malicious servers to redirect credential-bearing requests. Attackers controlling a compromised GitLab server can specify a Link header pointing to attacker-controlled infrastructur...

CVE-2026-88881: URL Redirection to Untrusted Site

Renovate, a dependency update tool, follows pagination links supplied by the GitHub server in the HTTP Link header when interacting with GitHub.com, GitHub Enterprise Cloud, or GitHub Enterprise Server, and sends the credentials configured for that host to the URL given as the 'next' page. Becaus...

PT-2026-89472

Name of the Vulnerable Software and Affected Versions Traefik versions 1.x Traefik versions prior to 2.11.56 Traefik versions 3.0.0 through 3.7.11 Description Traefik fails to properly handle request headers that act as aliases for other header names. While Go treats headers like...

PT-2026-89398

Renovate is a dependency update automation tool. When listing tags/digests for a container image, Renovate follows pagination links supplied by the remote registry in the HTTP Link header and attaches the registry credentials to the follow-up request without verifying that the pagination URL has...

PT-2026-89393

Renovate is a dependency update automation tool. In versions before 44.11.2 and Mend Renovate CE/EE images and charts before 15.4.0, and mend-renovate-enterprise-edition helm chart before 10.4.0, when listing new package versions from a NuGet registry Renovate follows pagination URLs supplied by...

PT-2026-89702

Summary There is a high-severity request-smuggling vulnerability in Traefik's handling of the HTTP/1.1 Upgrade mechanism. Since Traefik moved to unencrypted HTTP/2 with prior knowledge Go 1.24, a client-initiated Upgrade: h2c request header and its connection-specific HTTP2-Settings header were...

CVE-2026-88008: Inconsistent Interpretation of HTTP Requests

Traefik is an open source HTTP reverse proxy and load balancer. From 2.11.26 until 2.11.57 and 3.7.13, Traefik forwards a client-supplied Connection header requesting Upgrade, the Upgrade: h2c token, and HTTP2-Settings to a shared backend. If the backend accepts h2c and returns 101 Switching...

PT-2026-89477

knowns versions before 0.31.0 fail to properly validate the x-opencode-directory request header in the /api/opencode proxy endpoint. Remote attackers can supply arbitrary directory paths to execute file operations outside the project root on the host system...

CVE-2026-89044: Inconsistent Interpretation of HTTP Requests

Netty versions 4.1.133.Final through 4.1.137.Final and 4.2.13.Final through 4.2.17.Final fail to properly validate the final transfer coding in the Transfer-Encoding header, allowing attackers to smuggle requests by using malformed encoding declarations. Attackers can split Transfer-Encoding...

CVE-2026-19646: Undefined Security Weakness

IBM Common Licensing Agent 9.0, Agent 9.0.0.1, Agent 9.0.0.2, ART 9.0, ART 9.0.0.1, and ART 9.0.0.2 could allow a remote attacker to redirect users to an arbitrary domain due to improper validation of the HTTP Host header...

CVE-2026-88866: Improper Neutralization of Input During Web Page Generation

WWBN AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 contains a stored cross-site scripting vulnerability in the LoginControl plugin that fails to encode the User-Agent header before storing it in login history. Attackers with any valid login account can inject malicious scripts in...

CVE-2026-88879: Authentication Bypass by Spoofing

Traefik is an HTTP reverse proxy and load balancer. In Traefik v1.x, v2.x through v2.11.55, and v3.0.0 through v3.7.11, header names are canonicalized only on dashes, so X-Auth-User, XAuthUser and X.Auth.User are treated as three distinct headers by Traefik, while backends that derive variable...

CVE-2026-88011: Authentication Bypass by Spoofing

Traefik is an open source HTTP reverse proxy and load balancer. Prior to 2.11.56, and from 3.0.0 until 3.7.12, a client-supplied dot-form header such as X.Authenticated.User survives ForwardAuth replacement and underscoreHeadersStrategy because Go treats it as distinct from X-Authenticated-User...

PT-2026-89523

Name of the Vulnerable Software and Affected Versions Netty versions 4.1.133.Final through 4.1.137.Final Netty versions 4.2.13.Final through 4.2.17.Final Description Improper validation of the final transfer coding in the Transfer-Encoding header allows attackers to perform request smuggling usin...

PT-2026-89377

WWBN AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 contains a stored cross-site scripting vulnerability in the LoginControl plugin that fails to encode the User-Agent header before storing it in login history. Attackers with any valid login account can inject malicious scripts in...

PT-2026-89392

Renovate, a dependency update tool, follows pagination links supplied by the GitHub server in the HTTP Link header when interacting with GitHub.com, GitHub Enterprise Cloud, or GitHub Enterprise Server, and sends the credentials configured for that host to the URL given as the 'next' page. Becaus...

PT-2026-89366

cookies is a Node.js library for reading and writing HTTP cookies, used by Koa via ctx.cookies. In versions before 0.9.2 the library validates the cookie name and value against character sets that reject the semicolon separator, but the domain and path options are checked only against a permissiv...

CVE-2026-88887: URL Redirection to Untrusted Site

Renovate is a dependency update automation tool. When listing tags/digests for a container image, Renovate follows pagination links supplied by the remote registry in the HTTP Link header and attaches the registry credentials to the follow-up request without verifying that the pagination URL has...

CVE-2026-88882: URL Redirection to Untrusted Site

Renovate is a dependency update automation tool. In versions before 44.11.2 and Mend Renovate CE/EE images and charts before 15.4.0, and mend-renovate-enterprise-edition helm chart before 10.4.0, when listing new package versions from a NuGet registry Renovate follows pagination URLs supplied by...

PT-2026-89391

Name of the Vulnerable Software and Affected Versions Renovate versions prior to 44.11.3 Description Renovate fails to validate destinations in the Link header when following GitLab server pagination. This allows a compromised GitLab server to specify a Link header pointing to attacker-controlled...