Vulnerability in thClaws

[ Description ]Official description

thClaws through 0.141.0 contains a link-following vulnerability in the post_inputs handler of the v1 API POST /v1/inputs endpoint that allows writes outside the workspace by following symlinks. Attackers who plant a symlink under the allowed inputs/ prefix can cause later authenticated uploads to write or truncate files outside the workspace with daemon privileges.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ References ]References

• github.com/thClaws/thClaws
• github.com/thClaws/thClaws/blob/v0.141.0/crates/core/src/api_v1/artifacts.rs
• hackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/thclaws-api-inputs-symlink-escape
• www.vulncheck.com/advisories/thclaws-through-0.141.0-symlink-following-file-write-via-p…