UBUNTU-CVE-2026-23398

In the Linux kernel, the following vulnerability has been resolved: icmp: fix NULL pointer dereference in icmptagvalidation icmptagvalidation unconditionally dereferences the result of rcudereferenceinetprotosproto without checking for NULL. The inetprotos array is sparse -- only about 15 of 256...

CVE-2026-23398

In the Linux kernel, the following vulnerability has been resolved: icmp: fix NULL pointer dereference in icmptagvalidation icmptagvalidation unconditionally dereferences the result of rcudereferenceinetprotosproto without checking for NULL. The inetprotos array is sparse -- only about 15 of 256...

EUVD-2023-2989

Malicious code in bioql PyPI...

CVE-2023-47865

Mattermost fails to check if hardened mode is enabled when overriding the username and/or the icon when posting a post. If settings allowed integrations to override the username and profile picture when posting, a member could also override the username and icon when making a post even if the...

Improper Access Control

Mattermost is vulnerable to Improper Access Control. The vulnerability is due to Mattermost failing to check if hardened mode is enabled when overriding the username and/or the icon when posting a post. If settings allowed integrations to override the username and profile picture when posting ,...

Mattermost Improper Access Control vulnerability

Mattermost fails to check if hardened mode is enabled when overriding the username and/or the icon when posting a post. If settings allowed integrations to override the username and profile picture when posting, a member could also override the username and icon when making a post even if the...

GHSA-JJ46-9CGH-QMFX Mattermost Improper Access Control vulnerability

Mattermost fails to check if hardened mode is enabled when overriding the username and/or the icon when posting a post. If settings allowed integrations to override the username and profile picture when posting, a member could also override the username and icon when making a post even if the...

CVE-2023-47865

Mattermost fails to check if hardened mode is enabled when overriding the username and/or the icon when posting a post. If settings allowed integrations to override the username and profile picture when posting, a member could also override the username and icon when making a post even if the...

CVE-2023-47865

Mattermost fails to check if hardened mode is enabled when overriding the username and/or the icon when posting a post. If settings allowed integrations to override the username and profile picture when posting, a member could also override the username and icon when making a post even if the...

Code injection

Mattermost fails to check if hardened mode is enabled when overriding the username and/or the icon when posting a post. If settings allowed integrations to override the username and profile picture when posting, a member could also override the username and icon when making a post even if the...

CVE-2023-47865

CVE-2023-47865 affects Mattermost. The issue arises when hardened mode is enabled but the system does not validate overrides to username or profile icon during posting, allowing a member to override these fields if integrations can set them. Root cause: missing check of Hardened Mode during post ...

PT-2023-30649 · Unknown · Mattermost

Name of the Vulnerable Software and Affected Versions: Mattermost affected versions not specified Description: The issue arises from Mattermost's failure to check if hardened mode is enabled when overriding the username and/or the icon when posting. If settings allow integrations to override the...