GHSA-r7fm-3pqm-ww5w
Chall-Manager's scenario decoding process does not check for zip bombs
Packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| Go | github.com/ctfer-io/chall-manager | < 0.1.4 | 0.1.4 |
Details
As written in the advisory (Markdown source, shown as plain text).
### Impact
When decoding a scenario (i.e. a zip archive), the size of the decoded content is not checked, potentially leading to zip bombs decompression.
Exploitation does not require authentication nor authorization, so anyone can exploit it. It should nonetheless not be exploitable as it is highly recommended to bury Chall-Manager deep within the infrastructure due to its large capabilities, so no users could reach the system.
### Patches
Patch has been implemented by [commit `14042aa`](https://github.com/ctfer-io/chall-manager/commit/14042aa66a577caee777e10fe09adcf2587d20dd) and shipped in [`v0.1.4`](https://github.com/ctfer-io/chall-manager/releases/tag/v0.1.4).
### Workarounds
No workaround exist.
### References
N/A.
References
External links from the advisory. They lead to third-party sites.
- https://github.com/ctfer-io/chall-manager/security/advisories/GHSA-r7fm-3pqm-ww5w
- https://nvd.nist.gov/vuln/detail/CVE-2025-53633
- https://github.com/ctfer-io/chall-manager/commit/14042aa66a577caee777e10fe09adcf2587d20dd
- https://github.com/ctfer-io/chall-manager
- https://github.com/ctfer-io/chall-manager/releases/tag/v0.1.4