CVE-2026-22661

Description

prompts.chat prior to commit 0f8d4c3 contains a path traversal vulnerability in skill file handling that allows attackers to write arbitrary files to the client system by crafting malicious ZIP archives with unsanitized filenames containing path traversal sequences. Attackers can exploit missing server-side filename validation to inject path traversal sequences ../ into skill file archives, which when extracted by vulnerable tools write files outside the intended directory and overwrite shell initialization files to achieve code execution.

References

https://www.vulncheck.com/advisories/prompts-chat-path-traversal-via-skill-file-handling

https://github.com/f/prompts.chat/pull/1101

https://github.com/f/prompts.chat/commit/0f8d4c381abd7b2d7478c9fdee9522149c2d65e5

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3

CVSS v4

EPSS