CVE-2026-54741 Lemmy: Blocked users can edit private messages sent before the block

Lemmy is a link aggregator and forum for the fediverse. Prior to 0.19.19 and 1.0.0-alpha.18, Lemmy blocks new private messages from a sender after the recipient blocks that sender, but the edit path skips the same block check. createprivatemessage checks the recipient's block list with...

goshs has ACL Bypass & Path Traversal

Summary sendFile derives the served filename from the raw request path while opening the file from the cleaned path, so appending a trailing slash empties the derived name and defeats both the never-serve rule for the ACL file and the block list. Finding Medium: trailing-slash ACL and hidden-file...

GHSA-964W-F6GJ-5236 goshs has ACL Bypass & Path Traversal

Summary sendFile derives the served filename from the raw request path while opening the file from the cleaned path, so appending a trailing slash empties the derived name and defeats both the never-serve rule for the ACL file and the block list. Finding Medium: trailing-slash ACL and hidden-file...

GHSA-RMXW-PQ4X-3FVH goshs: File-based .goshs ACL authorization bypass via the ?bulk zip-download route (unauthenticated read; residual of GHSA-wvhv-qcqf-f3cx)

GHSA-wvhv-qcqf-f3cx fixed the per-folder .goshs ACL bypass on the state-changing routes PUT/POST upload/?mkdir/?delete and added recursive ACL resolution, and its description states the read/list path correctly enforces .goshs. That premise does not hold for the ?bulk zip-download route...

PT-2026-65652

Summary sendFile derives the served filename from the raw request path while opening the file from the cleaned path, so appending a trailing slash empties the derived name and defeats both the never-serve rule for the ACL file and the block list. Finding Medium: trailing-slash ACL and hidden-file...

CVE-2026-58172

CVE-2026-58172 affects Ocelot up to version 24.1.0. A security control bypass allows denied clients to bypass IP-based access restrictions by sending WebSocket upgrade requests. The WebSocket upgrade pipeline branch configured via MapWhen omits SecurityMiddleware, causing requests from blocked IP...

CVE-2021-43557

The uri-block plugin in Apache APISIX before 2.10.2 uses $requesturi without verification. The $requesturi is the full original request URI without normalization. This makes it possible to construct a URI to bypass the block list on some occasions. For instance, when the block list contains...