CVE-2023-50928

CRITICALNVD 9.09.0—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.0 under NVD CVSS v3. EPSS exploit probability: 0.4%, top 70% 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
9.0EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.0Exploit: None knownExposed: 0

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

"Sandbox Accounts for Events" provides multiple, temporary AWS accounts to a number of authenticated users simultaneously via a browser-based GUI. Authenticated users could potentially claim and access empty AWS accounts by sending request payloads to the account API containing non-existent event ids and self-defined budget & duration. This issue only affects cleaned AWS accounts, it is not possible to access AWS accounts in use or existing data/infrastructure. This issue has been patched in version 1.1.0.

CVSS v3
9.0
EG Score
9.0(medium)
EG Risk
45(Track)
EG Risk 45/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity90% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
29%
KEV
Not listed

Published

December 22, 2023

Last Modified

June 17, 2026

Advisory Details (2)

Auto-updated Jul 26, 2026
Patch available. Sources: github_commit, github.
github Patch Available

Security misconfiguration leads to budget exceed · Advisory · awslabs/sandbox-accounts-for-events · GitHub

https://github.com/awslabs/sandbox-accounts-for-events/security/advisories/GHSA-cg8w-7q5v-g32r
github_commit Patch Available

commit f30a0662f0a2 (awslabs/sandbox-accounts-for-events)

Patch available: awslabs/sandbox-accounts-for-events v1.1.2 (contains commit f30a0662f0a2)

https://github.com/awslabs/sandbox-accounts-for-events/commit/f30a0662f0a28734eb33c5868cccc1c319eb6e79

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 9× in last 7d / 34× 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 179 total refreshes for this CVE.

  1. 2026-09-24 14:01 UTCEPSS rescore
  2. 2026-09-24 14:01 UTCEPSS rescore
  3. 2026-09-23 13:46 UTCEPSS rescore
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  5. 2026-09-22 12:45 UTCOSV refresh
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  25. 2026-09-03 09:59 UTCOSV refresh
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  1. 2026-09-02 14:10 UTCEPSS rescore
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  17. 2026-08-18 13:46 UTCEPSS rescore
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  19. 2026-08-16 23:26 UTCOSV refresh
  20. 2026-08-16 14:54 UTCEPSS rescore
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  41. 2026-07-30 16:26 UTCEPSS rescore
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  50. 2026-07-24 14:16 UTCEPSS rescore
  51. 2026-07-23 02:28 UTCEG score recompute
  52. 2026-07-22 23:15 UTCEG score recompute▲ 1.90
  53. 2026-07-22 14:06 UTCEPSS rescore
  54. 2026-07-21 15:23 UTCEPSS rescore
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  67. 2026-07-15 00:25 UTCOSV refresh
  68. 2026-07-13 22:28 UTCEPSS rescore
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  72. 2026-07-12 05:45 UTCEPSS rescore
  73. 2026-07-11 08:26 UTCEPSS rescore
  74. 2026-07-09 19:08 UTCEPSS rescore
  75. 2026-07-08 15:13 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2023-50928?
CVE-2023-50928 is a critical vulnerability published on December 22, 2023. "Sandbox Accounts for Events" provides multiple, temporary AWS accounts to a number of authenticated users simultaneously via a browser-based GUI. Authenticated users could potentially claim and access empty AWS accounts by sending request payloads to the account API containing non-existent event…
When was CVE-2023-50928 disclosed?
CVE-2023-50928 was first published in the National Vulnerability Database on December 22, 2023, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-50928 actively exploited?
CVE-2023-50928 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 71.3% of all scored CVEs.
What is the CVSS score of CVE-2023-50928?
CVE-2023-50928 has a CVSS v3 base score of 9.0 (NVD).
How do I remediate CVE-2023-50928?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-50928, 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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