CVE-2026-55841 Graylog: Fortigate syslog message parser can be exploited to modify or delete fields from the original message

Graylog is a free and open log management platform. Prior to Graylog Server versions 6.3.12, 7.0.7, and 7.1.2 and Graylog Forwarder version 7.3, the FortiGate key-value syslog parser in graylog2-server/src/main/java/org/graylog2/inputs/codecs/GLFortiGateSyslogEvent.java and...

CVE-2026-55841 Graylog: Fortigate syslog message parser can be exploited to modify or delete fields from the original message

Graylog is a free and open log management platform. Prior to Graylog Server versions 6.3.12, 7.0.7, and 7.1.2 and Graylog Forwarder version 7.3, the FortiGate key-value syslog parser in graylog2-server/src/main/java/org/graylog2/inputs/codecs/GLFortiGateSyslogEvent.java and...

CVE-2026-55841

Graylog (a free and open log management platform) is affected by a parsing flaw in its FortiGate key-value syslog parser (GLFortiGateSyslogEvent.java and SyslogCodec.java). The root cause is that KV_PATTERN and QUOTED_KV_PATTERN mishandle field-like text inside quoted values: crafted values conta...

CVE-2026-51657

Incorrect access control in the getSyslogCfg function of TOTOLINK T6 4.1.5cu.748B20211015 allows unauthenticated attackers to obtain syslog-related configuration via sending a crafted POST request to /cgi-bin/cstecgi.cgi...

SUSE CVE-2026-54231

A content injection vulnerability was found in the ABRT post-create event handler scripts in libreport. The event script queries the systemd journal for log entries matching the crashed process and writes the results to files in the dump directory without sanitizing embedded control characters. A...

SUSE CVE-2026-78002

A flaw was found in rsyslog. An unauthenticated remote attacker can trigger a heap buffer overflow in the RainerScript replace function by sending specially crafted syslog messages. This vulnerability arises from an incorrect buffer size calculation during string replacement, causing memory...

EUVD-2026-67877

Incorrect access control in the getSyslogCfg function of TOTOLINK T6 4.1.5cu.748B20211015 allows unauthenticated attackers to obtain syslog-related configuration via sending a crafted POST request to /cgi-bin/cstecgi.cgi...

CVE-2026-51657

Incorrect access control in the getSyslogCfg function of TOTOLINK T6 4.1.5cu.748B20211015 allows unauthenticated attackers to obtain syslog-related configuration via sending a crafted POST request to /cgi-bin/cstecgi.cgi...

PT-2026-83347

Name of the Vulnerable Software and Affected Versions Graylog Server versions prior to 6.3.12 Graylog Server versions prior to 7.0.7 Graylog Server versions prior to 7.1.2 Graylog Forwarder versions prior to 7.3 Description The FortiGate key-value syslog parser mishandles field-like text inside...

PT-2026-83222

Incorrect access control in the getSyslogCfg function of TOTOLINK T6 4.1.5cu.748 B20211015 allows unauthenticated attackers to obtain syslog-related configuration via sending a crafted POST request to /cgi-bin/cstecgi.cgi...

CVE-2026-51657

The TOTOLINK T6 (version 4.1.5cu.748_B20211015 ) is vulnerable to an incorrect access control flaw within the getSyslogCfg function. This vulnerability allows unauthenticated attackers to obtain sensitive syslog-related configuration details by sending a crafted POST request to the /cgi-bin/cstec...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: rsyslog (UTSA-2025-002269)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-002269 advisory. Rsyslog is a rocket-fast system for log processing. Modules for TCP syslog reception have a potential heap buffer overflow when octet-counted framing is used. This c...

UBUNTU-CVE-2026-78002

A flaw was found in rsyslog. An unauthenticated remote attacker can trigger a heap buffer overflow in the RainerScript replace function by sending specially crafted syslog messages. This vulnerability arises from an incorrect buffer size calculation during string replacement, causing memory...

CVE-2026-78002

A flaw was found in rsyslog. An unauthenticated remote attacker can trigger a heap buffer overflow in the RainerScript replace function by sending specially crafted syslog messages. This vulnerability arises from an incorrect buffer size calculation during string replacement, causing memory...

EUVD-2026-66825

RFC6587SyslogDeserializer, used by the Spring Integration syslog TCP inbound adapter to decode RFC 6587 / RFC 5424 frames, trusts the sender-supplied octet count of an octet-counted frame and allocates a byte array of exactly that size with no upper bound. Spring Integration 7.1.0 Spring...

CVE-2026-47859

RFC6587SyslogDeserializer, used by the Spring Integration syslog TCP inbound adapter to decode RFC 6587 / RFC 5424 frames, trusts the sender-supplied octet count of an octet-counted frame and allocates a byte array of exactly that size with no upper bound. Spring Integration 7.1.0 Spring...

Linux Distros Unpatched Vulnerability : CVE-2026-78002

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A flaw was found in rsyslog. An unauthenticated remote attacker can trigger a heap buffer overflow in the RainerScript replace function by sending specially...

PT-2026-82553

Name of the Vulnerable Software and Affected Versions rsyslog affected versions not specified Description An unauthenticated remote attacker can cause a denial of service DoS by triggering a heap buffer overflow. This occurs when the RainerScript replace function incorrectly calculates the buffer...

Cross-site Scripting (XSS)

Overview librenms/librenms is a fully featured network monitoring system that provides a wealth of features and device support. Affected versions of this package are vulnerable to Cross-site Scripting XSS via unescaped output of attacker-controlled SNMP and syslog data in legacy PHP templates. An...

GHSA-7W8C-QGXG-M7JX LibreNMS — Stored XSS via SNMP/Syslog Data in Legacy Templates

Summary Multiple legacy PHP template files in LibreNMS directly output SNMP-sourced and syslog-sourced data into HTML without escaping. An attacker who controls a monitored network device via compromised SNMP agent or syslog sender can inject arbitrary JavaScript that executes when any...