CVE-2026-42180 Lemmy: SSRF in /api/v3/post via Webmention dispatch

Lemmy is a link aggregator and forum for the fediverse. Prior to version 0.19.18, Lemmy allows an authenticated low-privileged user to create a link post through POST /api/v3/post. When a post is created in a public community, the backend asynchronously sends a Webmention to the attacker-controll...

CVE-2026-42180 Lemmy: SSRF in /api/v3/post via Webmention dispatch

Lemmy is a link aggregator and forum for the fediverse. Prior to version 0.19.18, Lemmy allows an authenticated low-privileged user to create a link post through POST /api/v3/post. When a post is created in a public community, the backend asynchronously sends a Webmention to the attacker-controll...

CVE-2026-42180

Lemmy prior to version 0.19.18 is affected by a server-side request forgery: an authenticated low-privilege user can create a link post via POST /api/v3/post, and when posted to public communities Lemmy dispatches a Webmention to the target. The code path only validates the URL’s syntax/scheme (h...

GHSA-MPM8-CX2P-626Q

creationtimestamp| type| source ---|---|--- 2026-05-08 19:10:29+00:00| seen| https://gist.github.com/alon710/81381888e21682cdeae4882d5cd6667d...

GHSA-GF5M-WCRH-7928 open-webui Vulnerable to Stored XSS via Model Description

!IMPORTANT Relationship to CVE-2024-7990 CVE-2024-7990 issued by huntr.dev, March 2025 describes a stored XSS in the same field — the model description — but exploits a different bypass mechanism: a second-order injection through the sanitizeResponseContent function's video-tag placeholder...

open-webui Vulnerable to Stored XSS via Model Description

!IMPORTANT Relationship to CVE-2024-7990 CVE-2024-7990 issued by huntr.dev, March 2025 describes a stored XSS in the same field — the model description — but exploits a different bypass mechanism: a second-order injection through the sanitizeResponseContent function's video-tag placeholder...

CVE-2026-39214

creationtimestamp| type| source ---|---|--- 2026-05-08 18:19:08+00:00| seen| https://gist.github.com/cla7aye15I4nd/f9a7700240afe7ae8171ee65682e890f...

CVE-2026-39215

creationtimestamp| type| source ---|---|--- 2026-05-08 18:19:08+00:00| seen| https://gist.github.com/cla7aye15I4nd/f9a7700240afe7ae8171ee65682e890f...

GHSA-Q3J6-QGPJ-74H6

creationtimestamp| type| source ---|---|--- 2026-05-08 17:40:29+00:00| seen| https://gist.github.com/alon710/0dcaec5097e434920cb749f30d284372 2026-05-19 19:42:10+00:00| seen| https://gist.github.com/konard/d8a22725a8b00a188eb2098b18eaa766 2026-05-19 19:44:33+00:00| seen|...

CVE-2026-41690

creationtimestamp| type| source ---|---|--- 2026-05-08 17:29:53+00:00| seen| https://bsky.app/profile/thehackerwire.bsky.social/post/3mleazdfstp2c 2026-05-08 18:36:14+00:00| seen| https://bsky.app/profile/cve.skyfleet.blue/post/3mleepyw5wy2i...

CVE-2026-43345

creationtimestamp| type| source ---|---|--- 2026-05-08 17:27:06+00:00| seen| https://bsky.app/profile/cve.skyfleet.blue/post/3mleauelgzo2n 2026-07-02 07:17:11+00:00| seen| https://www.hkcert.org/security-bulletin/suse-linux-kernel-multiple-vulnerabilities20260702...

ExternalSecrets vulnerable to privilege escalation with secret overwriting

ExternalSecrets allows users to craft Service Account tokens for misconfigured Service Accounts in namespaces the users have access to. Impact A user who only has permission to create ExternalSecret resources can cause the operator to create a Secret that Kubernetes will automatically populate wi...

CVE-2026-41683

creationtimestamp| type| source ---|---|--- 2026-05-08 17:22:32+00:00| seen| https://bsky.app/profile/thehackerwire.bsky.social/post/3mleam5ppcx2c 2026-05-08 19:13:15+00:00| seen| https://bsky.app/profile/cve.skyfleet.blue/post/3mlegs6ixd72c...

CVE-2026-43472

creationtimestamp| type| source ---|---|--- 2026-05-08 17:08:09+00:00| seen| https://infosec.exchange/users/vuldb/statuses/116540052992107234 2026-05-09 16:06:38+00:00| seen| https://infosec.exchange/users/vuldb/statuses/116545473383071089 2026-08-03 07:13:46+00:00| seen|...

CVE-2026-41886

creationtimestamp| type| source ---|---|--- 2026-05-08 17:07:02+00:00| seen| https://bsky.app/profile/thehackerwire.bsky.social/post/3mle7qhnbjg2w...

GHSA-2CM2-M3W5-GP2F

creationtimestamp| type| source ---|---|--- 2026-05-08 16:40:29+00:00| seen| https://gist.github.com/alon710/a7bb9826d4f58a9bb6ab3bd25eb4d508...

GHSA-3V85-FQVH-7RXF

creationtimestamp| type| source ---|---|--- 2026-05-08 16:10:29+00:00| seen| https://gist.github.com/alon710/8f139efaf98ab724348c38b11621f80e...

GHSA-RGJ7-VG8V-J4WR

creationtimestamp| type| source ---|---|--- 2026-05-08 15:40:29+00:00| seen| https://gist.github.com/alon710/94f8b23cf2128584de5548f78104fff1...

EUVD-2026-28723

In the Linux kernel, the following vulnerability has been resolved: sched/mmcid: Handle vfork/CLONEVM correctly Matthieu and Jiri reported stalls where a task endlessly loops in mmgetcid when scheduling in. It turned out that the logic which handles vfork'ed tasks is broken. It is invoked when th...

EUVD-2026-28666

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix transaction abort on file creation due to name hash collision If we attempt to create several files with names that result in the same hash, we have to pack them in same dir item and that has a limit inherent to the le...