CVE-2026-54738 Lemmy: Rate limit bypass via X-Forwarded-For header spoofing in actix-web ConnectionInfo

Lemmy is a link aggregator and forum for the fediverse. Prior to 0.19.19 and 1.0.0-beta.1, actix-web ConnectionInfo::realipremoteaddr reads the first value of X-Forwarded-For as the client address used by rawipkey in crates/utils/src/ratelimit/mod.rs. Lemmy's bundled docker/nginx.conf uses...

CVE-2026-49283

SimpleSAMLphp SAML2 (PHP library) is vulnerable to a TLS validator confusion in the HTTPArtifact::receive() flow. The embedded SAML Response receives a validator that delegates to the outer SOAP ArtifactResponse, but is validated against metadata selected from the embedded response issuer rather ...

EUVD-2026-62502

The SimpleSAMLphp SAML2 library is a PHP library for SAML2 related functionality. Prior to versions 4.19.3, 4.20.2, 5.0.6, and 6.2.1, the HTTPArtifact::receive flow can treat an unsigned embedded SAML Response as cryptographically valid for the wrong identity provider. SOAPClient::addSSLValidator...

CVE-2026-75953

J-BusinessDirectory versions before 6.2.3 accept the recipient address directly from request parameters (contact_id_offer/contact_id_event) instead of a server-side record, enabling an open mail relay that can send mail to arbitrary addresses. Upgrade to 6.2.3 or later. No exploitation evidence i...

CVE-2026-50243

A flaw in Unbound's respip module fails to verify the security status of incoming DNS answers when using response-ip rules or RPZ files. A remote attacker can exploit this by spoofing DNS answers to bypass DNSSEC protections and trigger unauthorized rewrites, redirecting clients to unintended...

Microsoft SharePoint Server - Authentication Bypass

Improper authentication in Microsoft Office SharePoint allows an unauthorized attacker to perform spoofing over a network. id: CVE-2025-49706 info: name: Microsoft SharePoint Server - Authentication Bypass author: daffainfo severity: medium description: | Improper authentication in Microsoft Offi...

UBUNTU-CVE-2026-74975

Spoofing issue in the Downloads component in Firefox for Android. This...

PT-2026-78783

Name of the Vulnerable Software and Affected Versions Splunk SOAR versions prior to 8.6.0 Description An unauthenticated user can execute arbitrary code on the host by spoofing the source IP address in a crafted request to an Automation Broker notification endpoint. This occurs because the...

EUVD-2026-62201

4gaBoards is a boards system for realtime project management. Prior to 3.3.8, 4gaBoards is vulnerable to pre-account takeover when registrationEnabled, localRegistrationEnabled, and ssoRegistrationEnabled are enabled and Google, GitHub, Microsoft, or OIDC SSO is configured. The POST /api/register...

CVE-2026-72817

A flaw was found in the go-chi/chi component. The RealIP middleware, responsible for resolving the request source IP, does not properly validate trusted proxies when processing the X-Forwarded-For header. A remote attacker can exploit this by prepending a forged IP address to the X-Forwarded-For...

CVE-2026-16732

Fastify 5.8.3–5.12.0 remains vulnerable to X-Forwarded-* spoofing when trustProxy is set numerically (e.g., 1), because the CVE-2026-3635 guard predicate ignores the connecting address. This enables host injection, HTTPS-enforcement bypass, secure-cookie/CSRF-origin bypass, and cache poisoning. P...

CVE-2026-16732 fastify vulnerable to X-Forwarded-* spoofing under trustProxy hop-count

fastify is a fast and low overhead web framework for Node.js. Impact: the fix for CVE-2026-3635 added a guard on the forwarded-header reads used to derive the request host, protocol, hostname, ip, and ips values, checking the connecting address. That guard closes the IP, CIDR, and custom-function...

CVE-2026-16732 fastify vulnerable to X-Forwarded-* spoofing under trustProxy hop-count

fastify is a fast and low overhead web framework for Node.js. Impact: the fix for CVE-2026-3635 added a guard on the forwarded-header reads used to derive the request host, protocol, hostname, ip, and ips values, checking the connecting address. That guard closes the IP, CIDR, and custom-function...

CVE-2026-72815

A flaw was found in the go-chi chi RealIP middleware. This vulnerability allows a remote attacker to spoof their IP address by manipulating the X-Forwarded-For HTTP header. By exploiting this, an attacker can bypass IP-based access control lists and rate-limiting mechanisms, and forge log entries...

CVE-2026-72816

A flaw was found in the go-chi/chi RealIP middleware. This vulnerability allows a remote attacker to perform IP spoofing by supplying arbitrary IP addresses in client-controlled headers. This can lead to bypassing IP-based access controls, evading rate limiting and geo-IP restrictions, and...

CVE-2026-18534

ArcSearch for iOS versions prior to 1.48.0 could keep the address bar hidden after a page-initiated scroll, allowing attacker-controlled content to imitate browser interface elements and increasing spoofing risk...

CVE-2026-68939

Pyenv provides simple Python version management. Prior to 2.8.0, isversionsafe in libexec/pyenv-version-file-read accepts shell glob metacharacters in .python-version values, and unquoted PYENVVERSION expansion in libexec/pyenv-version-name, libexec/pyenv-which, libexec/pyenv-prefix,...

EUVD-2026-60946

ArcSearch for iOS versions prior to 1.48.0 could keep the address bar hidden after a page-initiated scroll, allowing attacker-controlled content to imitate browser interface elements and increasing spoofing risk...

CVE-2026-18534

ArcSearch for iOS versions prior to 1.48.0 could keep the address bar hidden after a page-initiated scroll, allowing attacker-controlled content to imitate browser interface elements and increasing spoofing risk...

CVE-2026-18534

ArcSearch for iOS versions prior to 1.48.0 has a spoofing vulnerability where the address bar remains hidden after a page-initiated scroll, letting attacker-controlled content mimic browser UI elements. CVSS 7.4 (HIGH) reflects the high integrity impact requiring user interaction. No exploitation...