UBUNTU-CVE-2026-29111

systemd, a system and service manager, as PID 1 hits an assert and freezes execution when an unprivileged IPC API call is made with spurious data. On version v249 and older the effect is not an assert, but stack overwriting, with the attacker controlled content. From version v250 and newer this i...

PT-2026-27182

Name of the Vulnerable Software and Affected Versions Mantis Bug Tracker versions prior to 2.28.1 Description Mantis Bug Tracker is an open source issue tracker. A flaw exists in version 2.28.0 where improper escaping of a tag name during the display of a confirmation message when deleting a tag...

CVE-2026-33427

Discourse is affected by CVE-2026-33427. Before versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2, an unauthenticated attacker could cause a legitimate Discourse authorization page to display an attacker-controlled domain, enabling social engineering. A patch is included in 2026.3.0-latest.1, 20...

CVE-2026-33423

Discourse is an open-source discussion platform. Prior to versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2, staff can modify any user's group notification level. Versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2 contain a patch. No known workarounds are available...

EUVD-2026-13908

Discourse is an open-source discussion platform. Prior to versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2, users with tag-editing permissions could edit and create synonyms for tags hidden in restricted tag groups, even if they lacked visibility into those tags. Versions 2026.3.0-latest.1,...

EUVD-2026-13904

Discourse is an open-source discussion platform. Prior to versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2, an attacker can grant access to a private message topic through invites even after they lose access to that PM. Versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2 contain a patch. No know...

CVE-2026-33424

The CVE concerns Discourse (open-source discussion platform). Affected are versions prior to 2026.3.0-latest.1, 2026.2.1, and 2026.1.2. The issue allows an attacker to regain access to a private message (PM) topic via invites even after revoking the attacker’s PM access. The root cause is the PM ...

CVE-2026-33423 Discourse staff can modify any user's group notification level

Discourse is an open-source discussion platform. Prior to versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2, staff can modify any user's group notification level. Versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2 contain a patch. No known workarounds are available...

CVE-2026-33422 Discourse exposes ip_address of flagged user

Discourse is an open-source discussion platform. Prior to versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2, the ipaddress of a flagged user is exposed to any user who can access the review queue, including users who should not be able to see IP addresses. Versions 2026.3.0-latest.1, 2026.2.1, a...

EUVD-2026-13488

Discourse is an open-source discussion platform. Versions prior to 2026.3.0-latest.1, 2026.2.1, and 2026.1.2 allow a moderator to edit site policy documents ToS, guidelines, privacy policy that they are explicitly prohibited from modifying. Versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2 conta...

PT-2026-26707

Name of the Vulnerable Software and Affected Versions Discourse versions prior to 2026.3.0-latest.1 Discourse versions prior to 2026.2.1 Discourse versions prior to 2026.1.2 Description Discourse is an open-source discussion platform. Staff members could modify any user's group notification level...

PT-2026-26708

Name of the Vulnerable Software and Affected Versions Discourse versions prior to 2026.3.0-latest.1 Discourse versions prior to 2026.2.1 Discourse versions prior to 2026.1.2 Description Discourse is an open-source discussion platform. An attacker can grant access to a private message topic throug...

PT-2026-26539

Name of the Vulnerable Software and Affected Versions Discourse versions prior to 2026.3.0-latest.1 Discourse versions prior to 2026.2.1 Discourse versions prior to 2026.1.2 Description Discourse is an open-source discussion platform. Moderators could edit site policy documents – Terms of Service...

CVE-2026-33355

Discourse is an open-source discussion platform. Prior to versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2, the /private-posts endpoint did not apply post-type visibility filtering, allowing regular PM participants to see whisper posts in PM topics they had access to. Versions 2026.3.0-latest.1...

EUVD-2026-13340

Discourse is an open-source discussion platform. Prior to versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2, the Post Edits admin report /admin/reports/postedits leaked the first 40 characters of raw post content from private messages and secure categories to moderators who shouldn't have access...

EUVD-2026-13337

Discourse is an open-source discussion platform. Prior to versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2, the /private-posts endpoint did not apply post-type visibility filtering, allowing regular PM participants to see whisper posts in PM topics they had access to. Versions 2026.3.0-latest.1...

CVE-2026-33355 Discourse filters whisper posts from private-posts feed

Discourse is an open-source discussion platform. Prior to versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2, the /private-posts endpoint did not apply post-type visibility filtering, allowing regular PM participants to see whisper posts in PM topics they had access to. Versions 2026.3.0-latest.1...

EUVD-2026-13241

Discourse is an open-source discussion platform. Prior to versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2, a restriction bypass allows restricted post action counts to be disclosed to non-privileged users through a carefully crafted request. Versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2...

CVE-2026-27936 Discourse discloses restricted post-action counts to non-privileged users

Discourse is an open-source discussion platform. Prior to versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2, a restriction bypass allows restricted post action counts to be disclosed to non-privileged users through a carefully crafted request. Versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2...

@keystone-6/core: `isFilterable` bypass via `cursor` parameter in findMany (CVE-2025-46720 incomplete fix)

Summary field.isFilterable access control can be bypassed in findMany queries by passing a cursor. This can be used to confirm the existence of records by protected field values. The fix for CVE-2025-46720 field-level isFilterable bypass for update and delete mutations added checks to the where...