GHSA-f44v-7qgw-9gh9

## Summary PraisonAI's template loader accepts GitHub template URIs with refs, for example `github:owner/repo/[email protected]`. The resolver stores the user-controlled template path and ref verbatim, and the cache layer later joins those values into `~/.praison/cache/templates/github/<owner>/<repo>/<template>/<ref>` without normalizing each segment or checking that the final path remains inside the template cache root. A crafted ref such as `../../../../../../outside-delete-target` therefore escapes the cache directory. The first load can write `.cache_meta.json` outside the cache. If the normal cache hierarchy for the same owner/repo/template has already been created, the same path reaches `shutil.rmtree(cache_path)` and removes an attacker-selected outside directory before replacing it with cache metadata. This is distinct from the old template Zip Slip advisory. No malicious archive member is needed, and the PoV disables network access entirely. The bug is in cache-key construction for GitHub template URIs. ## Affected versions Confirmed vulnerable: - `v2.6.0` - `v3.9.24` - `v3.9.26` - `v4.5.126` - `v4.5.128` - `v4.6.9` - `v4.6.10` - `v4.6.56` - `v4.6.57` - current head `2f9677abb2ea68eab864ee8b6a828fd0141612e1` Recommended affected range: `>= 2.6.0, <= 4.6.57`. No fixed version is known at the time of this report. ## Impact An attacker who can cause a user or service to load an attacker-supplied PraisonAI GitHub template URI can: - create `.cache_meta.json` outside the template cache directory; - delete a directory reachable by the PraisonAI process after a normal cache entry exists for the same owner/repo/template prefix; - corrupt user configuration, project state, or application data reachable by the process permissions. ## Root cause Current-head code path: - `praisonai/templates/resolver.py`: `GITHUB_PATTERN` captures `path` and `ref` with broad regex groups and returns them without segment validation. - `praisonai/templates/security.py`