CVE-2026-103261 Tornado before 6.5.9 Denial of Service via Query String

Tornado before 6.5.9 fails to limit the number of query string fields in HTTPServerRequest.init, allowing remote attackers to cause event-loop stalling by sending requests with thousands of query parameters. Attackers can send unauthenticated GET requests with unbounded query-string field counts ...

EUVD-2026-90655

Tornado before 6.5.9 fails to limit the number of query string fields in HTTPServerRequest.init, allowing remote attackers to cause event-loop stalling by sending requests with thousands of query parameters. Attackers can send unauthenticated GET requests with unbounded query-string field counts ...

CVE-2026-103261

Tornado before 6.5.9 fails to limit the number of query string fields in HTTPServerRequest.init, allowing remote attackers to cause event-loop stalling by sending requests with thousands of query parameters. Attackers can send unauthenticated GET requests with unbounded query-string field counts ...

CVE-2026-103261

The Tornado web framework versions prior to 6.5.9 are vulnerable to a Denial of Service (DoS) condition. The root cause is a lack of limits on the number of query string fields processed within the HTTPServerRequest.__init__ component. A remote, unauthenticated attacker can exploit this by sendin...

CVE-2026-103261 Tornado before 6.5.9 Denial of Service via Query String

Tornado before 6.5.9 fails to limit the number of query string fields in HTTPServerRequest.init, allowing remote attackers to cause event-loop stalling by sending requests with thousands of query parameters. Attackers can send unauthenticated GET requests with unbounded query-string field counts ...

CVE-2026-103261 Tornado before 6.5.9 Denial of Service via Query String

Tornado before 6.5.9 fails to limit the number of query string fields in HTTPServerRequest.init, allowing remote attackers to cause event-loop stalling by sending requests with thousands of query parameters. Attackers can send unauthenticated GET requests with unbounded query-string field counts ...

CentOS Linux 6 [TuxCare] Security Update: httpd / httpd-devel / httpd-manual / httpd-tools / mod_ssl (CENTOS6:CLSA-2026:1781253209)

The CentOS Linux 6 host has packages installed that are affected by a vulnerability as referenced in the TuxCare CENTOS6:CLSA-2026:1781253209 advisory. - Apache HTTP Server 2.4.65 and earlier with Server Side Includes SSI enabled and modcgid but not modcgi passes the shell-escaped query string to...

CentOS Linux 7 [TuxCare] Security Update: httpd / httpd-devel / httpd-manual / httpd-tools / mod_ldap / etc (CENTOS7:CLSA-2026:1767970357)

The CentOS Linux 7 host has packages installed that are affected by a vulnerability as referenced in the TuxCare CENTOS7:CLSA-2026:1767970357 advisory. - Apache HTTP Server 2.4.65 and earlier with Server Side Includes SSI enabled and modcgid but not modcgi passes the shell-escaped query string to...

CVE-2026-103261: Allocation of Resources Without Limits or Throttling

Tornado before 6.5.9 fails to limit the number of query string fields in HTTPServerRequest.init, allowing remote attackers to cause event-loop stalling by sending requests with thousands of query parameters. Attackers can send unauthenticated GET requests with unbounded query-string field counts ...

CentOS Linux 8 [TuxCare] Security Update: httpd / httpd-devel / httpd-filesystem / httpd-manual / httpd-tools / etc (CENTOS-STREAM8:CLSA-2026:1767800942)

The CentOS Linux 8 host has packages installed that are affected by a vulnerability as referenced in the TuxCare CENTOS- STREAM8:CLSA-2026:1767800942 advisory. - Apache HTTP Server 2.4.65 and earlier with Server Side Includes SSI enabled and modcgid but not modcgi passes the shell-escaped query...

Linux Distros Unpatched Vulnerability : CVE-2026-103261

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Tornado before 6.5.9 fails to limit the number of query string fields in HTTPServerRequest.init, allowing remote attackers to cause event-loop stalling by sendi...

CentOS Linux 8.4 [TuxCare] Security Update: httpd / httpd-devel / httpd-filesystem / httpd-manual / httpd-tools / etc (CENTOS8.4:CLSA-2026:1767613214)

The CentOS Linux 8.4 host has packages installed that are affected by a vulnerability as referenced in the TuxCare CENTOS8.4:CLSA-2026:1767613214 advisory. - Apache HTTP Server 2.4.65 and earlier with Server Side Includes SSI enabled and modcgid but not modcgi passes the shell-escaped query strin...

GHSA-3HV7-MJH2-FV65 Tornado: Unbounded query-string argument count allows event-loop-stalling DoS

Summary HTTPServerRequest.init in tornado/httputil.py parses the URL query string via parseqsbytes with no field-count limit — while the sibling POST-body parsing path parsebodyarguments received a maxnumfields=1000 cap added earlier in this exact same release v6.5.8, commit 8d6363ed, explicitly ...

AlmaLinux 9.6 [TuxCare] Security Update: httpd / httpd-core / httpd-devel / httpd-filesystem / httpd-manual / etc (ALMALINUX9.6:CLSA-2025:1767027096)

The AlmaLinux 9.6 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.6:CLSA-2025:1767027096 advisory. - Apache HTTP Server 2.4.65 and earlier with Server Side Includes SSI enabled and modcgid but not modcgi passes the shell-escaped query strin...

Rocky Linux 9.6 [TuxCare] Security Update: httpd / httpd-core / httpd-devel / httpd-filesystem / httpd-manual / etc (ALMALINUX9.6:CLSA-2025:1767027096)

The Rocky Linux 9.6 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.6:CLSA-2025:1767027096 advisory. - Apache HTTP Server 2.4.65 and earlier with Server Side Includes SSI enabled and modcgid but not modcgi passes the shell-escaped query...

CentOS Linux 8.5 [TuxCare] Security Update: httpd / httpd-devel / httpd-filesystem / httpd-manual / httpd-tools / etc (CENTOS8.5:CLSA-2026:1767609927)

The CentOS Linux 8.5 host has packages installed that are affected by a vulnerability as referenced in the TuxCare CENTOS8.5:CLSA-2026:1767609927 advisory. - Apache HTTP Server 2.4.65 and earlier with Server Side Includes SSI enabled and modcgid but not modcgi passes the shell-escaped query strin...

AlmaLinux 9.2 [TuxCare] Security Update: httpd / httpd-core / httpd-devel / httpd-filesystem / httpd-manual / etc (ALMALINUX9.2:CLSA-2025:1767004508)

The AlmaLinux 9.2 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.2:CLSA-2025:1767004508 advisory. - Apache HTTP Server 2.4.65 and earlier with Server Side Includes SSI enabled and modcgid but not modcgi passes the shell-escaped query strin...

Fedora 43 : perl-HTML-FormFu (2026-219b6aef6c)

The remote Fedora 43 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-219b6aef6c advisory. HTML::FormFu versions through 2.08 for Perl allow resource exhaustion via an unbounded repeat count from the query string in Repeatable elements. In this...

Fedora 45 : perl-HTML-FormFu (2026-94d32d2e8e)

The remote Fedora 45 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-94d32d2e8e advisory. HTML::FormFu versions through 2.08 for Perl allow resource exhaustion via an unbounded repeat count from the query string in Repeatable elements. In this...

PT-2026-99547

Name of the Vulnerable Software and Affected Versions Netcore NBR200V2 version 1.3.241127.071246 Description An OS command injection flaw exists in the Web Management Interface component. A remote attacker can exploit this by manipulating the QUERY STRING argument passed to the eval function with...