CVE-2025-53633

Source
https://cve.org/CVERecord?id=CVE-2025-53633
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-53633.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2025-53633
Aliases
Downstream
Related
Published
2025-07-10T19:38:19.564Z
Modified
2026-05-18T05:57:32.779483327Z
Severity
  • 8.7 (High) CVSS_V4 - 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 CVSS Calculator
Summary
Chall-Manager's scenario decoding process does not check for zip bombs
Details

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.

Database specific
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/53xxx/CVE-2025-53633.json",
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-405"
    ]
}
References

Affected packages

Git / github.com/ctfer-io/chall-manager

Affected ranges

Type
GIT
Repo
https://github.com/ctfer-io/chall-manager
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed

Affected versions

sdk/v0.*
sdk/v0.1.0
sdk/v0.1.1
sdk/v0.1.2
sdk/v0.1.3
v0.*
v0.1.0
v0.1.1
v0.1.2
v0.1.3

Database specific

source
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-53633.json"