CVE-2026-54003

Kirby is an open-source content management system. Prior to 4.9.4 and from 5.4.4, Kirby sites with no configured user accounts that run on publicly accessible servers behind a reverse proxy setting the Forwarded, X-Client-IP, or X-Real-IP request header could allow remote attackers to install the...

CVE-2026-49220

Jellyfin is an open source self hosted media server. Prior to 10.11.9, a potential XSS attack exists in Jellyfin which can allow a non-privileged user to execute arbitrary Javascript in the context of a logged-in Administrative user, resulting in numerous potential issues. The Client header durin...

CVE-2026-49220

Jellyfin is an open source self hosted media server. Prior to 10.11.9, a potential XSS attack exists in Jellyfin which can allow a non-privileged user to execute arbitrary Javascript in the context of a logged-in Administrative user, resulting in numerous potential issues. The Client header durin...

CVE-2026-49220 Jellyfin: Potential XSS in user management

Jellyfin is an open source self hosted media server. Prior to 10.11.9, a potential XSS attack exists in Jellyfin which can allow a non-privileged user to execute arbitrary Javascript in the context of a logged-in Administrative user, resulting in numerous potential issues. The Client header durin...

CVE-2026-49220

CVE-2026-49220 affects Jellyfin up to version 10.11.8, where a vulnerability in the AuthenticateByName flow allows a non-privileged user to inject HTML/JavaScript in the Client header that executes in an Administrative user session when accessing a user’s detail from the dashboard. This is a user...

ALPINE-CVE-2026-42055

NGINX Plus and NGINX Open Source have a vulnerability in the ngxhttpproxyv2module and ngxhttpgrpcmodule modules. This vulnerability exists when the proxyhttpversion to 2 or grpcpass directives are used to proxy HTTP/2 traffic, the ignoreinvalidheaders directive is set to off, and the...

CVE-2026-10629

SIP signaling stack in Verizon IMS unspecified version implements SIP signaling without IPsec integrity protection missing Security-Client/Security-Server headers and ESP traffic, which allows an on-path attacker to compromise confidentiality, integrity, and authenticity of VoLTE signaling via...

User Impersonation

Overview Affected versions of this package are vulnerable to User Impersonation due to the reliance on client-supplied IP address headers such as X-Forwarded-For, X-Real-IP, and True-Client-IP. An attacker can circumvent per-IP rate limiting by supplying arbitrary values in these headers, causing...

GHSA-J8H8-75H3-JG53 Fleet has a rate limiting bypass via untrusted client IP headers

Impact Fleet trusted client-supplied IP address headers when determining the source IP for incoming requests. This allowed authenticated and unauthenticated clients to spoof their apparent IP address and bypass per-IP rate limiting controls. Fleet determines a client’s public IP address using HTT...

Fleet has a rate limiting bypass via untrusted client IP headers

Impact Fleet trusted client-supplied IP address headers when determining the source IP for incoming requests. This allowed authenticated and unauthenticated clients to spoof their apparent IP address and bypass per-IP rate limiting controls. Fleet determines a client’s public IP address using HTT...

PT-2026-40968

Name of the Vulnerable Software and Affected Versions Fleet versions prior to 4.80.1 Description Fleet trusted client-supplied IP address headers when determining the source IP for incoming requests. This allowed authenticated and unauthenticated clients to spoof their apparent IP address and...

CVE-2026-29794

Vikunja (open-source self-hosted task management) before version 2.2.0 is affected by a rate-limit bypass vulnerability. The issue arises because rate-limiting is enforced using (echo.Context).RealIP, and unauthenticated requests can spoof headers X-Forwarded-For or X-Real-IP to bypass limits. Th...

CVE-2026-32029

OpenClaw is affected in versions prior to 2026.2.21 where parsing of the left-most X-Forwarded-For header from trusted proxies can be spoofed. This allows attackers to influence security decisions that rely on client IP information, including authentication rate-limiting and IP-based access contr...

GHSA-G9F6-9775-HFFM Nhost Storage Affected by MIME Type Spoofing via Trusted Client Content-Type Header in Storage Upload

Summary The storage service's file upload handler trusts the client-provided Content-Type header without performing server-side MIME type detection. This allows an attacker to upload files with an arbitrary MIME type, bypassing any MIME-type-based restrictions configured on storage buckets...

Nhost Storage Affected by MIME Type Spoofing via Trusted Client Content-Type Header in Storage Upload

Summary The storage service's file upload handler trusts the client-provided Content-Type header without performing server-side MIME type detection. This allows an attacker to upload files with an arbitrary MIME type, bypassing any MIME-type-based restrictions configured on storage buckets...

Caddy forward_auth copy_headers Does Not Strip Client-Supplied Headers, Allowing Identity Injection and Privilege Escalation

Summary Caddy's forwardauth directive with copyheaders generates conditional header-set operations that only fire when the upstream auth service includes the named header in its response. No delete or remove operation is generated for the original client-supplied request header with the same name...

CVE-2026-21862 RustFS sourceIp bypass via spoofed X-Forwarded-For/Real-IP headers

RustFS is a distributed object storage system built in Rust. Prior to version alpha.78, IP-based access control can be bypassed: getconditionvalues trusts client-supplied X-Forwarded-For/X-Real-Ip without verifying a trusted proxy, so any reachable client can spoof aws:SourceIp and satisfy...

PT-2026-5492

Name of the Vulnerable Software and Affected Versions Crystal Shard http-protection version 0.2.0 Description The software contains an IP spoofing issue that allows attackers to bypass protection middleware. This is achieved by manipulating request headers to hardcode consistent IP values across...

MiracleLinux 9 : java-17-openjdk-17.0.13.0.11-3.el9.ML.1 (AXSA:2024-8936:15)

The remote MiracleLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2024-8936:15 advisory. giflib: Heap-Buffer Overflow during Image Saving in DumpScreen2RGB Function CVE-2023-48161 JDK: Array indexing integer overflow 8328544 CVE-2024-212...

SUSE CVE-2025-66577

cpp-httplib is a C++11 single-file header-only cross platform HTTP/HTTPS library. Prior to 0.27.0, a vulnerability allows attacker-controlled HTTP headers to influence server-visible metadata, logging, and authorization decisions. An attacker can supply X-Forwarded-For or X-Real-IP headers which...