Astra Linux – Vulnerability in freeipa

A flaw was discovered in all IPA versions ranging from 4.x.x to 4.8.0. When sending a very long password = 1,000,000 characters to the server, the password hashing process could exhaust memory and CPU resources, resulting in a denial of service and making the website unresponsive. The greatest...

SUSE CVE-2026-24458

Mattermost versions 11.3.x = 11.3.0, 11.2.x = 11.2.2, 10.11.x = 10.11.10 fail to properly handle very long passwords, which allows an attacker to overload the server CPU and memory via executing login attempts with multi-megabyte passwords. Mattermost Advisory ID: MMSA-2026-00587...

Mattermost fails to properly handle very long passwords

Mattermost versions 11.3.x = 11.3.0, 11.2.x = 11.2.2, 10.11.x = 10.11.10 fail to properly handle very long passwords, which allows an attacker to overload the server CPU and memory via executing login attempts with multi-megabyte passwords. Mattermost Advisory ID: MMSA-2026-00587...

GHSA-M5RV-56XX-HFC6 Mattermost fails to properly handle very long passwords

Mattermost versions 11.3.x = 11.3.0, 11.2.x = 11.2.2, 10.11.x = 10.11.10 fail to properly handle very long passwords, which allows an attacker to overload the server CPU and memory via executing login attempts with multi-megabyte passwords. Mattermost Advisory ID: MMSA-2026-00587...

CVE-2026-24458 DoS attack via login attempts with multi-megabyte passwords

Mattermost versions 11.3.x = 11.3.0, 11.2.x = 11.2.2, 10.11.x = 10.11.10 fail to properly handle very long passwords, which allows an attacker to overload the server CPU and memory via executing login attempts with multi-megabyte passwords. Mattermost Advisory ID: MMSA-2026-00587...

CVE-2026-24458

Summary of CVE-2026-24458 : Mattermost versions 11.3.x <= 11.3.0, 11.2.x <= 11.2.2, and 10.11.x

libsoup: Signed to Unsigned Conversion Error Leading to Stack-Based Buffer Overflow in libsoup NTLM Authentication

A flaw was identified in the NTLM authentication handling of the libsoup HTTP library, used by GNOME and other applications for network communication. When processing extremely long passwords, an internal size calculation can overflow due to improper use of signed integers. This results in...

ipa: No password length restriction leads to denial of service

A flaw was found in IPA. When sending a very long password = 1,000,000 characters to the server, the password hashing process could exhaust memory and CPU leading to a denial of service and the website becoming unresponsive. The highest threat from this vulnerability is to system availability...

openssh: Denial of service via very long passwords

It was found that OpenSSH did not limit password lengths for password authentication. A remote unauthenticated attacker could use this flaw to temporarily trigger high CPU consumption in sshd by sending long passwords...