Rapid7 Analysis: Microsoft SharePoint JWT Token Authentication Bypass (CVE-2026-55040)

Overview On July 14, 2026, Rapid7 and Microsoft disclosed CVE-2026-55040, an authentication bypass vulnerability affecting Microsoft SharePoint. Today we are publishing a technical analysis of the vulnerability along with an accompanying proof-of-concept PoC script. Figure 1: The Rapid7 Labs PoC...

CVE-2026-18614

A vulnerability was found in GL-iNet GL-MT3000 up to 4.4.5. Impacted is the function s2s.enableechoserver of the file /cgi-bin/glc of the component s2s.so Native Plugin. Performing a manipulation of the argument port results in command injection. The attack may be initiated remotely. The exploit...

EUVD-2026-52400

A vulnerability was found in GL-iNet GL-MT3000 up to 4.4.5. Impacted is the function s2s.enableechoserver of the file /cgi-bin/glc of the component s2s.so Native Plugin. Performing a manipulation of the argument port results in command injection. The attack may be initiated remotely. The exploit...

CVE-2026-18614

CVE-2026-18614 affects GL-iNet GL-MT3000 devices (firmware up to 4.4.5). The vulnerability lies in the s2s.so Native Plugin, specifically the function s2s.enable_echo_server in the file /cgi-bin/glc . An attacker can manipulate the port argument to trigger a command injection . The attack can be ...

PT-2026-67463

A vulnerability was found in GL-iNet GL-MT3000 up to 4.4.5. Impacted is the function s2s.enable echo server of the file /cgi-bin/glc of the component s2s.so Native Plugin. Performing a manipulation of the argument port results in command injection. The attack may be initiated remotely. The exploi...

CVE-2024-39226

GL-iNet products AR750/AR750S/AR300M/AR300M16/MT300N-V2/B1300/MT1300/SFT1200/X750 v4.3.11, MT3000/MT2500/AXT1800/AX1800/A1300/X300B v4.5.16, XE300 v4.3.16, E750 v4.3.12, AP1300/S1300 v4.3.13, and XE3000/X3000 v4.4 were discovered to contain a vulnerability can be exploited to manipulate routers b...

EUVD-2025-198693

Malicious code in @alaan/s2s-auth npm...

CVE-2024-39226

GL-iNet products AR750/AR750S/AR300M/AR300M16/MT300N-V2/B1300/MT1300/SFT1200/X750 v4.3.11, MT3000/MT2500/AXT1800/AX1800/A1300/X300B v4.5.16, XE300 v4.3.16, E750 v4.3.12, AP1300/S1300 v4.3.13, and XE3000/X3000 v4.4 were discovered to contain a vulnerability can be exploited to manipulate routers b...

CVE-2024-39226

GL-iNet products AR750/AR750S/AR300M/AR300M16/MT300N-V2/B1300/MT1300/SFT1200/X750 v4.3.11, MT3000/MT2500/AXT1800/AX1800/A1300/X300B v4.5.16, XE300 v4.3.16, E750 v4.3.12, AP1300/S1300 v4.3.13, and XE3000/X3000 v4.4 were discovered to contain a vulnerability can be exploited to manipulate routers b...

CVE-2022-43572 Indexing blockage via malformed data sent through S2S or HEC protocols in Splunk Enterprise

In Splunk Enterprise versions below 8.2.9, 8.1.12, and 9.0.2, sending a malformed file through the Splunk-to-Splunk S2S or HTTP Event Collector HEC protocols to an indexer results in a blockage or denial-of-service preventing further indexing...

Splunk Enterprise 8.1.x < 8.1.5, 8.2.x < 8.2.1 Authentication Bypass

A crafted request bypasses S2S TCP Token authentication writing arbitrary events to an index in Splunk Enterprise Indexer 8.1 versions before 8.1.5 and 8.2 versions before 8.2.1. The vulnerability impacts Indexers configured to use TCPTokens. It does not impact Universal Forwarders. Note that...

CVE-2021-31559

A crafted request bypasses S2S TCP Token authentication writing arbitrary events to an index in Splunk Enterprise Indexer 8.1 versions before 8.1.5 and 8.2 versions before 8.2.1. The vulnerability impacts Indexers configured to use TCPTokens. It does not impact Universal Forwarders...

CVE-2021-31559 S2S TcpToken authentication bypass

A crafted request bypasses S2S TCP Token authentication writing arbitrary events to an index in Splunk Enterprise Indexer 8.1 versions before 8.1.5 and 8.2 versions before 8.2.1. The vulnerability impacts Indexers configured to use TCPTokens. It does not impact Universal Forwarders...

[WP-H3] S2S Transfer from the origin schain to another schain with automatic deploy disabled can cause funds to be frozen

Lines of code Vulnerability details When moving tokens that are native on the origin schain, to another schain, TokenManagerERC20.soltransferToSchainERC20 will be called, which calls exit - receiveERC20: if isMainChainToken data = receiveERC20 chainHash, addresscontractOnSchain, msg.sender, amoun...

Debian DLA-407-1 : prosody security update

The flaw allows a malicious server to impersonate the vulnerable domain to any XMPP domain whose domain name includes the attacker's domain as a suffix. For example, 'bber.example' would be able to connect to 'jabber.example' and successfully impersonate any vulnerable server on the network. This...

[SECURITY] [DLA 407-1] prosody security update

Package : prosody Version : 0.7.0-1squeeze1+deb6u2 CVE ID : CVE-2016-0756 The flaw allows a malicious server to impersonate the vulnerable domain to any XMPP domain whose domain name includes the attackers domain as a suffix. For example, bber.example would be able to connect to jabber.example an...

DLA-407-1 prosody - security update

Bulletin has no description...

CVE-2012-3525

s2s/out.c in jabberd2 2.2.16 and earlier does not verify that a request was made for an XMPP Server Dialback response, which allows remote XMPP servers to spoof domains via a 1 Verify Response or 2 Authorization Response...