CVE-2024-29021

CRITICALNVD 9.09.0—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.0 under NVD CVSS v3. EPSS exploit probability: 1.6%, top 18% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
Elevated
9.0
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 20%CVSS: 9.0Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

Judge0 is an open-source online code execution system. The default configuration of Judge0 leaves the service vulnerable to a sandbox escape via Server Side Request Forgery (SSRF). This allows an attacker with sufficient access to the Judge0 API to obtain unsandboxed code execution as root on the target machine. This vulnerability is fixed in 1.13.1.

CVSS v3
9.0
EG Score
9.0(medium)
EPSS
97.2%
KEV
Not listed

Published

April 18, 2024

Last Modified

April 15, 2026

Advisory Details (2)

Auto-updated May 22, 2026
🔬 Proof of concept available. Patch available. Sources: github.
github Patch Available🟡 PoC Available

SSRF into Sandbox Escape through Unsafe Default Configuration · Advisory · judge0/judge0 · GitHub

https://github.com/judge0/judge0/security/advisories/GHSA-q7vg-26pg-v5hr
generic

judge0/app/jobs/isolate_job.rb at ad66f77b131dbbebf2b9ff8083dca9a68680b3e5 · judge0/judge0 · GitHub

https://github.com/judge0/judge0/blob/ad66f77b131dbbebf2b9ff8083dca9a68680b3e5/app/jobs/isolate_job.rb#L203-L230

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 12× in last 7d / 47× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 107 total refreshes for this CVE.

  1. 2026-07-11 08:26 UTCEPSS rescore
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  3. 2026-07-11 07:22 UTCOSV refresh
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  1. 2026-06-24 14:04 UTCEPSS rescore
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  6. 2026-06-22 14:22 UTCOSV refresh
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  27. 2026-06-08 14:16 UTCEPSS rescore
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  36. 2026-06-04 22:39 UTCOSV refresh
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  65. 2026-05-22 02:56 UTCEG score recompute
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Frequently asked(5)

What is CVE-2024-29021?
CVE-2024-29021 is a critical vulnerability published on April 18, 2024. Judge0 is an open-source online code execution system. The default configuration of Judge0 leaves the service vulnerable to a sandbox escape via Server Side Request Forgery (SSRF). This allows an attacker with sufficient access to the Judge0 API to obtain unsandboxed code execution as root on the…
When was CVE-2024-29021 disclosed?
CVE-2024-29021 was first published in the National Vulnerability Database on April 18, 2024, with the most recent update on April 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2024-29021 actively exploited?
CVE-2024-29021 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 97.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2024-29021?
CVE-2024-29021 has a CVSS v3 base score of 9.0 (NVD).
How do I remediate CVE-2024-29021?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2024-29021, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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