CVE-2025-53633: Github.com/ctfer io/chall manager Chall-Manager's Scenario Decoding Process Does Vulnerability

HIGH
Advisory Identifier: GHSA-r7fm-3pqm-ww5w
Share
CWE-405 CWE-409
Published
Advisory Summary

CVE-2025-53633 is a HIGH chall-manager's scenario decoding process does vulnerability (CWE-405: Asymmetric Resource Consumption (Amplification)) affecting Github.com/ctfer io/chall manager libraries in the Go ecosystem. The issue involves chall-manager's scenario decoding process does not check for zip bombs. Remediation is available by upgrading affected packages to version 0.1.4.

CVE-2025-53633 at a Glance

CVE Identifier CVE-2025-53633
GHSA Identifier GHSA-r7fm-3pqm-ww5w
Severity HIGH
CVSS v3.1 Base Score N/A
CWE Classification CWE-405: Asymmetric Resource Consumption (Amplification)
Affected Product Github.com/ctfer io/chall manager
Package Ecosystem Go
Published Date
Last Updated

How to Fix CVE-2025-53633

To remediate this vulnerability, upgrade all affected Github.com/ctfer io/chall manager dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

github.com/ctfer-io/chall-manager fixed: 0.1.4 
Upgrade github.com/ctfer-io/chall-manager to 0.1.4
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for github.com/ctfer-io/chall-manager

How to Check if You Are Affected

To determine whether your application is affected by CVE-2025-53633, inspect your project dependencies for Github.com/ctfer io/chall manager:

inspect dependencies for github.com/ctfer-io/chall-manager

Analyze the terminal output to locate any version of Github.com/ctfer io/chall manager in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 0.1.4), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-405: Asymmetric Resource Consumption (Amplification), where the product does not properly control situations in which an adversary can cause the product to consume or produce excessive resources without requiring the adversary to invest equivalent work or otherwise prove authorization, i.e., the adversary's influence is "asymmetric.". In Github.com/ctfer io/chall manager, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

### 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.

CVE-2025-53633 Affected Github.com/ctfer io/chall manager Versions

1 component(s)
Fixed Versions:
0.1.4
Product / Package Ecosystem Affected Versions Fixed Version
github.com/ctfer-io/chall-manager
golang/github.com/ctfer-io/chall-manager
Go
< 0.1.4
0.1.4

References

GitHub Advisory / Wiki ADVISORY
https://github.com/ctfer-io/chall-manager/security/advisories/GHSA-r7fm-3pqm-ww5w
NVD — CVE-2025-53633 NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-53633
Security Fix Commit FIX COMMIT
https://github.com/ctfer-io/chall-manager/commit/14042aa66a577caee777e10fe09adcf2587d20dd
Github.com/ctfer io/chall manager Source Repository REPOSITORY
https://github.com/ctfer-io/chall-manager
Github.com/ctfer io/chall manager Release RELEASE
https://github.com/ctfer-io/chall-manager/releases/tag/v0.1.4

Frequently Asked Questions

What is CVE-2025-53633?
CVE-2025-53633 is a security vulnerability in Github.com/ctfer io/chall manager involving Chall-Manager's scenario decoding process does not check for zip bombs under CWE-405: Asymmetric Resource Consumption (Amplification).
Which Github.com/ctfer io/chall manager versions are affected?
Affected versions include releases prior to 0.1.4 across affected packages: github.com/ctfer-io/chall-manager.
What version fixes CVE-2025-53633?
Upgrading to 0.1.4 (or the latest patched release for your respective branch) resolves the vulnerability.
Is github.com/ctfer-io/chall-manager affected?
Yes, github.com/ctfer-io/chall-manager is affected in releases prior to 0.1.4. Upgrade your dependency to 0.1.4 or later.
What CWE is associated with CVE-2025-53633?
CVE-2025-53633 is classified under CWE-405: Asymmetric Resource Consumption (Amplification) (The product does not properly control situations in which an adversary can cause the product to consume or produce excessive resources without requiring the adversary to invest equivalent work or otherwise prove authorization, i.e., the adversary's influence is "asymmetric.").
How can I check Go dependencies for CVE-2025-53633?
Run the dependency tree command: 'inspect dependencies for github.com/ctfer-io/chall-manager'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-r7fm-3pqm-ww5w",
  "modified" : "2025-07-10T23:21:54Z",
  "published" : "2025-07-10T17:50:25Z",
  "aliases" : [ "CVE-2025-53633" ],
  "summary" : "Chall-Manager's scenario decoding process does not check for zip bombs",
  "details" : "### Impact\n\nWhen decoding a scenario (i.e. a zip archive), the size of the decoded content is not checked, potentially leading to zip bombs decompression.\nExploitation 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.\n\n### Patches\n\nPatch 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).\n\n### Workarounds\n\nNo workaround exist.\n\n### References\n\nN/A.",
  "severity" : [ {
    "type" : "CVSS_V4",
    "score" : "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"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/ctfer-io/chall-manager"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "0.1.4"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/ctfer-io/chall-manager/security/advisories/GHSA-r7fm-3pqm-ww5w"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2025-53633"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/ctfer-io/chall-manager/commit/14042aa66a577caee777e10fe09adcf2587d20dd"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/ctfer-io/chall-manager"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/ctfer-io/chall-manager/releases/tag/v0.1.4"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-405", "CWE-409" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2025-07-10T17:50:25Z",
    "nvd_published_at" : "2025-07-10T20:15:27Z"
  }
}