{"cve":"CVE-2025-53633","nvd":{"published":"2025-07-10T20:15:27.823","modified":"2026-06-17T09:38:36.657","status":"Analyzed","description":"Chall-Manager is a platform-agnostic system able to start Challenges on Demand of a player. 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. Patch has been implemented by commit 14042aa and shipped in v0.1.4.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","score":8.7},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8},"cwes":["CWE-405"],"references":["https://github.com/ctfer-io/chall-manager/commit/14042aa66a577caee777e10fe09adcf2587d20dd","https://github.com/ctfer-io/chall-manager/releases/tag/v0.1.4","https://github.com/ctfer-io/chall-manager/security/advisories/GHSA-r7fm-3pqm-ww5w"],"products":["ctfer-io:chall-manager"],"source":"nvd","synced_at":"2026-10-19T22:04:28.436527499+00:00"},"epss":{"cve":"CVE-2025-53633","score":0.00527,"percentile":0.44674,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-r7fm-3pqm-ww5w","url":"https://osv.dev/vulnerability/GHSA-r7fm-3pqm-ww5w","summary":"Chall-Manager's scenario decoding process does not check for zip bombs","modified":"2025-07-28T20:41:53.919648Z","packages":[{"ecosystem":"Go","name":"github.com/ctfer-io/chall-manager","purl":"pkg:golang/github.com/ctfer-io/chall-manager","ranges":["<0.1.4"],"fixed":["0.1.4"]}]},{"id":"GO-2025-3810","url":"https://osv.dev/vulnerability/GO-2025-3810","summary":"Chall-Manager's scenario decoding process does not check for zip bombs in github.com/ctfer-io/chall-manager","modified":"2026-03-03T04:56:44.111655Z","packages":[{"ecosystem":"Go","name":"github.com/ctfer-io/chall-manager","purl":"pkg:golang/github.com/ctfer-io/chall-manager","ranges":["<0.1.4"],"fixed":["0.1.4"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}