CVE-2026-20896 Gitea Docker image trusts spoofable reverse-proxy headers by default

Gitea Docker image versions up to and including 1.26.2 use REVERSEPROXYTRUSTEDPROXIES= by default, allowing any source IP to impersonate a user when reverse-proxy authentication headers such as X-WEBAUTH-USER are enabled...

CVE-2026-20896 Gitea Docker image trusts spoofable reverse-proxy headers by default

Gitea Docker image versions up to and including 1.26.2 use REVERSEPROXYTRUSTEDPROXIES= by default, allowing any source IP to impersonate a user when reverse-proxy authentication headers such as X-WEBAUTH-USER are enabled...

CVE-2026-20896

Gitea Docker image versions up to and including 1.26.2 use REVERSEPROXYTRUSTEDPROXIES= by default, allowing any source IP to impersonate a user when reverse-proxy authentication headers such as X-WEBAUTH-USER are enabled...

CVE-2026-20896

CVE-2026-20896 affects Gitea Docker images up to and including 1.26.2. The root cause is the default setting REVERSE_PROXY_TRUSTED_PROXIES=*, which can let an attacker impersonate a user when reverse-proxy authentication headers (e.g., X-WEBAUTH-USER) are enabled. Several sources document this, i...

CVE-2026-20896 Gitea Docker image trusts spoofable reverse-proxy headers by default

Gitea Docker image versions up to and including 1.26.2 use REVERSEPROXYTRUSTEDPROXIES= by default, allowing any source IP to impersonate a user when reverse-proxy authentication headers such as X-WEBAUTH-USER are enabled...

CVE-2026-38969

A flaw was found in WEBrick, a Ruby web server toolkit. This vulnerability allows a remote attacker to perform request smuggling by manipulating the Content-Length header in HTTP/1.1 requests. WEBrick incorrectly re-parses the trailer Content-Length, leading to a desynchronization between the pro...

[SECURITY] Fedora 44 Update: ipp-usb-0.9.34-2.fc44

HTTP reverse proxy, backed by IPP-over-USB connection to device. It enables driverless support for USB devices capable of using IPP-over-USB protocol...

netty-codec-http: Netty is vulnerable to request smuggling due to incorrect parsing of chunk extensions

A flaw in Netty’s HTTP/1.1 chunked encoding parser allows newline LF characters in chunk extensions to be incorrectly treated as the end of the chunk-size line instead of requiring the proper CRLF sequence. This discrepancy can be exploited in rare cases where a reverse proxy interprets the same...

9router has an Incomplete Fix: Local-Only Access Gate Bypass in 9router via Host Header SpoofING

The fix for CVE-2026-46339 unauthenticated RCE via unprotected MCP plugin routes introduced a local-only access gate in src/dashboardGuard.js that restricts spawn-capable routes /api/mcp/, /api/tunnel/, /api/cli-tools/ to loopback requests. The gate determines "local" by inspecting the Host and...

[SECURITY] Fedora 44 Update: nginx-1.30.3-1.fc44

Nginx is a web server and a reverse proxy server for HTTP, SMTP, POP3 and IMAP protocols, with a strong focus on high concurrency, performance and low memory usage...

[SECURITY] Fedora 43 Update: nginx-1.30.3-1.fc43

Nginx is a web server and a reverse proxy server for HTTP, SMTP, POP3 and IMAP protocols, with a strong focus on high concurrency, performance and low memory usage...

PT-2026-53004

Name of the Vulnerable Software and Affected Versions Fluentd versions prior to 1.19.3 Description The in http and in forward plugins support gzip-compressed data but only enforce size limits on the compressed payloads via settings like body size limit and chunk size limit. Because no limit is...

GO-2026-5695 Gogs has an Authentication Bypass via Unvalidated Reverse Proxy Headers in gogs.io/gogs

Gogs has an Authentication Bypass via Unvalidated Reverse Proxy Headers in gogs.io/gogs. NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions. If this is causing false-positive reports from vulnerability...

CVE-2026-55454

Appsmith is a platform to build admin panels, internal tools, and dashboards. Prior to 2.1, the bundled Caddy reverse-proxy's admin API — which has no authentication by default — is bound on 0.0.0.0:2019 inside the container. While this listener is not directly published to the host by...

CVE-2026-55454 Appsmith: Caddy admin API exposed without authentication

Appsmith is a platform to build admin panels, internal tools, and dashboards. Prior to 2.1, the bundled Caddy reverse-proxy's admin API — which has no authentication by default — is bound on 0.0.0.0:2019 inside the container. While this listener is not directly published to the host by...

User Impersonation

Overview Affected versions of this package are vulnerable to User Impersonation via the ENABLEREVERSEPROXYAUTHENTICATION process. An attacker can impersonate any user or trigger automatic account creation by forging the configured authentication header in client requests. This is only exploitable...

User Impersonation

Overview Affected versions of this package are vulnerable to User Impersonation via the ENABLEREVERSEPROXYAUTHENTICATION process. An attacker can impersonate any user or trigger automatic account creation by forging the configured authentication header in client requests. This is only exploitable...

User Impersonation

Overview Affected versions of this package are vulnerable to User Impersonation via the ENABLEREVERSEPROXYAUTHENTICATION process. An attacker can impersonate any user or trigger automatic account creation by forging the configured authentication header in client requests. This is only exploitable...

User Impersonation

Overview Affected versions of this package are vulnerable to User Impersonation via the ENABLEREVERSEPROXYAUTHENTICATION process. An attacker can impersonate any user or trigger automatic account creation by forging the configured authentication header in client requests. This is only exploitable...

CVE-2026-25119

Gogs is an open source self-hosted Git service. Prior to 0.14.3, when ENABLEREVERSEPROXYAUTHENTICATION is enabled, Gogs accepts the configured authentication header default: X-WEBAUTH-USER directly from client requests without validating that the request originated from a trusted reverse proxy. A...