CVE-2026-20896

CVE-2026-20896 Gitea 的官方 Docker 镜像（最高至 1.26.2 及包括该版本）在其默认配置中包含了 REVERSEPROXYTRUSTEDPROXIES = 。如果你开启了反向代理登录，这个通配符意味着每个来源 IP 都被视为可信代理，因此任何能访问该端口的人都可以发送 X-WEBAUTH-USER 头部并以任意用户身份登录。无需密码，无需令牌。 我已将此问题报告给 Gitea，并在 1.26.3 / 1.26.4 中修复。本仓库是我自己的分析报告、一个可用的 PoC 以及一个检测工具。这是一个已修补的公开漏洞。 CVE...

CVE-2026-42395

A flaw was found in Dovecot. A remote attacker, if able to send forwarding information from a host configured as a trusted proxy, could send a NUL byte that crashes the login process. This termination of the login process can lead to a denial of service for user logins. Mitigation To mitigate thi...

CVE-2026-42008

A flaw was found in Dovecot. Forwarded information from a host listed as a trusted proxy is not properly separated from Dovecot's internal authentication fields. This allows a malicious host configured as a trusted proxy to inject values as internal authentication fields, enabling it to...

PT-2026-84535

Name of the Vulnerable Software and Affected Versions AVideo affected versions not specified Description AVideo fails to validate trusted proxies before accepting X-Real-IP and X-Forwarded-For headers. This allows attackers to spoof the client address used by the enforceRateLimit function. By...

Linux Distros Unpatched Vulnerability : CVE-2026-42008

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Forwarding information received from a host listed as a trusted proxy is not kept separate from Dovecot's own authentication fields, so a value sent by that hos...

Linux Distros Unpatched Vulnerability : CVE-2026-42395

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A host listed as a trusted proxy can send forwarding information containing a NUL byte, which crashes the login process on the following login attempt. The logi...

AZL-98265 CVE-2026-42395 affecting package dovecot 2.3.20-1

A host listed as a trusted proxy can send forwarding information containing a NUL byte, which crashes the login process on the following login attempt. The login process is terminated, which can cause degradation or denial of service for logins. Deployments that do not configure trusted proxies a...

ALPINE-CVE-2026-42395

A host listed as a trusted proxy can send forwarding information containing a NUL byte, which crashes the login process on the following login attempt. The login process is terminated, which can cause degradation or denial of service for logins. Deployments that do not configure trusted proxies a...

CVE-2026-42008

Forwarding information received from a host listed as a trusted proxy is not kept separate from Dovecot's own authentication fields, so a value sent by that host can be injected as an internal authentication field. Any host permitted to act as a trusted proxy can authenticate as any user without...

CVE-2026-42395

A host listed as a trusted proxy can send forwarding information containing a NUL byte, which crashes the login process on the following login attempt. The login process is terminated, which can cause degradation or denial of service for logins. Deployments that do not configure trusted proxies a...

AZL-98325 CVE-2026-42008 affecting package dovecot 2.3.20-1

Forwarding information received from a host listed as a trusted proxy is not kept separate from Dovecot's own authentication fields, so a value sent by that host can be injected as an internal authentication field. Any host permitted to act as a trusted proxy can authenticate as any user without...

CVE-2026-42395

A host listed as a trusted proxy can send forwarding information containing a NUL byte, which crashes the login process on the following login attempt. The login process is terminated, which can cause degradation or denial of service for logins. Deployments that do not configure trusted proxies a...

CVE-2026-42395

A host listed as a trusted proxy can send forwarding information containing a NUL byte, which crashes the login process on the following login attempt. The login process is terminated, which can cause degradation or denial of service for logins. Deployments that do not configure trusted proxies a...

CVE-2026-42395

A host listed as a trusted proxy can send forwarding information containing a NUL byte, which crashes the login process on the following login attempt. The login process is terminated, which can cause degradation or denial of service for logins. Deployments that do not configure trusted proxies a...

CVE-2026-42395

CVE-2026-42395 affects Dovecot (OX Dovecot by Open-Xchange, per the advisory reference). A host listed as a trusted proxy can send forwarding information containing a NUL byte , which crashes the login process on the next login attempt, causing degradation or denial of service for logins. Deploym...

EUVD-2026-67677

A host listed as a trusted proxy can send forwarding information containing a NUL byte, which crashes the login process on the following login attempt. The login process is terminated, which can cause degradation or denial of service for logins. Deployments that do not configure trusted proxies a...

EUVD-2026-67673

Forwarding information received from a host listed as a trusted proxy is not kept separate from Dovecot's own authentication fields, so a value sent by that host can be injected as an internal authentication field. Any host permitted to act as a trusted proxy can authenticate as any user without...

CVE-2026-42008

Forwarding information received from a host listed as a trusted proxy is not kept separate from Dovecot's own authentication fields, so a value sent by that host can be injected as an internal authentication field. Any host permitted to act as a trusted proxy can authenticate as any user without...

CVE-2026-42008

Forwarding information received from a host listed as a trusted proxy is not kept separate from Dovecot's own authentication fields, so a value sent by that host can be injected as an internal authentication field. Any host permitted to act as a trusted proxy can authenticate as any user without...

CVE-2026-42008

CVE-2026-42008 is an authentication bypass in Dovecot (Open-Xchange fork) where forwarding information from a trusted proxy host is not kept separate from Dovecot's own authentication fields. A malicious or compromised trusted proxy host can inject an internal authentication field, allowing it to...