BIT-MASTODON-2026-23963 Mastodon missing length limits on list names, filter names, and filter keywords

Mastodon is a free, open-source social network server based on ActivityPub. Prior to versions 4.5.5, 4.4.12, and 4.3.18, the server does not enforce a maximum length for the names of lists or filters, or for filter keywords, allowing any user to set an arbitrarily long string as the name or...

PT-2026-6341

Mastodon is a free, open-source social network server based on ActivityPub. Prior to versions 4.5.5, 4.4.12, and 4.3.18, the server does not enforce a maximum length for the names of lists or filters, or for filter keywords, allowing any user to set an arbitrarily long string as the name or...

CVE-2026-23963

CVE-2026-23963 affects Mastodon prior to versions 4.5.5, 4.4.12, and 4.3.18 where there is no maximum length enforcement for list names, filter names, or filter keywords. This can enable a local user to craft arbitrarily long strings, leading to disproportionate storage and compute resource usage...

CVE-2026-23963 Mastodon missing length limits on list names, filter names, and filter keywords

Mastodon is a free, open-source social network server based on ActivityPub. Prior to versions 4.5.5, 4.4.12, and 4.3.18, the server does not enforce a maximum length for the names of lists or filters, or for filter keywords, allowing any user to set an arbitrarily long string as the name or...

EUVD-2026-4209

Mastodon is a free, open-source social network server based on ActivityPub. Prior to versions 4.5.5, 4.4.12, and 4.3.18, the server does not enforce a maximum length for the names of lists or filters, or for filter keywords, allowing any user to set an arbitrarily long string as the name or...

CVE-2026-23963

Mastodon is a free, open-source social network server based on ActivityPub. Prior to versions 4.5.5, 4.4.12, and 4.3.18, the server does not enforce a maximum length for the names of lists or filters, or for filter keywords, allowing any user to set an arbitrarily long string as the name or...

Mastodon security vulnerabilities

Mastodon is an open-source social networking server based on ActivityPub. Versions of Mastodon prior to v4.5.5, v4.4.12, and v4.3.18 contained security vulnerabilities. These vulnerabilities stemmed from the lack of enforcing a maximum length for list names, filter names, or filter keywords, whic...

PT-2026-3901

Name of the Vulnerable Software and Affected Versions Mastodon versions prior to 4.5.5 Mastodon versions prior to 4.4.12 Mastodon versions prior to 4.3.18 Description Mastodon, a free and open-source social network server based on ActivityPub, does not limit the length of names for lists or...

CVE-2025-14136

A security flaw has been discovered in Linksys RE6500, RE6250, RE6300, RE6350, RE7000 and RE9000 1.0.013.001/1.0.04.001/1.0.04.002/1.1.05.003/1.2.07.001. This vulnerability affects the function RE2000v2RepeatergetwiredclientlistsetClientsName of the file modform.so. The manipulation of the argume...

Regular Expression Denial of Service (ReDoS)

Overview Affected versions of this package are vulnerable to Regular Expression Denial of Service ReDoS via the listNames function. An attacker can cause significant CPU consumption and degrade server performance by supplying a crafted regular expression and influencing the set of resource names...

Regular Expression Denial of Service (ReDoS)

Overview com.powsybl:powsybl-ampl-converter is a converter implementation based on CSV-like files. Affected versions of this package are vulnerable to Regular Expression Denial of Service ReDoS via the listNames function. An attacker can cause significant CPU consumption and degrade server...

Regular Expression Denial of Service (ReDoS)

Overview Affected versions of this package are vulnerable to Regular Expression Denial of Service ReDoS via the listNames function. An attacker can cause significant CPU consumption and degrade server performance by supplying a crafted regular expression and influencing the set of resource names...

CVE-2023-1250

Improper Input Validation vulnerability in OTRS AG OTRS ACL modules, OTRS AG OTRS Community Edition ACL modules allows Local Execution of Code. When creating/importing an ACL it was possible to inject code that gets executed via manipulated comments and ACL-names This issue affects OTRS: from 7.0...

CVE-2021-41976

Tad Uploader edit book list function is vulnerable to authorization bypass, thus remote attackers can use the function to amend the folder names in the book list without logging in...

USN-2558-1 mailman vulnerability

It was discovered that Mailman incorrectly handled special characters in list names. A local attacker could use this issue to perform a path traversal attack and execute arbitrary code as the Mailman user...