CVE-2025-23206

HIGHNVD 8.18.1—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.1 under NVD CVSS v3. EPSS exploit probability: 0.1%, top 79% 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
8.1
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 8.1Exploit: NoneExposed: 0

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

The AWS Cloud Development Kit (AWS CDK) is an open-source software development framework to define cloud infrastructure in code and provision it through AWS CloudFormation. Users who use IAM OIDC custom resource provider package will download CA Thumbprints as part of the custom resource workflow. However, the current tls.connect method will always set rejectUnauthorized: false which is a potential security concern. CDK should follow the best practice and set rejectUnauthorized: true. However, this could be a breaking change for existing CDK applications and we should fix this with a feature flag. Note that this is marked as low severity Security advisory because the issuer url is provided by CDK users who define the CDK application. If they insist on connecting to a unauthorized OIDC provider, CDK should not disallow this. Additionally, the code block is run in a Lambda environment which mitigate the MITM attack. The patch is in progress. To mitigate, upgrade to CDK v2.177.0 (Expected release date 2025-02-22). Once upgraded, users should make sure the feature flag '@aws-cdk/aws-iam:oidcRejectUnauthorizedConnections' is set to true in cdk.context.json or cdk.json. There are no known workarounds for this vulnerability.

CVSS v3
8.1
EG Score
8.1(medium)
EPSS
24.0%
KEV
Not listed

Published

January 17, 2025

Last Modified

January 23, 2026

References (7)

Affected Packages

(1 across 1 ecosystem)
npm(1)
PackageVulnerable rangeFixed inDependents
aws-cdk-lib—2.177.0—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 8× in last 7d / 44× 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.

  1. 2026-07-22 14:07 UTCEPSS rescore
  2. 2026-07-22 14:07 UTCEPSS rescore
  3. 2026-07-21 15:24 UTCEPSS rescore
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  20. 2026-07-09 19:09 UTCEPSS rescore
  21. 2026-07-08 15:14 UTCEPSS rescore
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  23. 2026-07-07 13:21 UTCOSV refresh
  24. 2026-07-06 16:26 UTCEPSS rescore
  25. 2026-07-06 02:22 UTCEPSS rescore
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  1. 2026-07-06 02:22 UTCEPSS rescore
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  18. 2026-06-23 21:32 UTCEPSS rescore
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  20. 2026-06-22 14:25 UTCEPSS rescore
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  22. 2026-06-21 14:56 UTCEPSS rescore
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  24. 2026-06-21 01:59 UTCEPSS rescore
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  26. 2026-06-19 19:25 UTCEPSS rescore
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  28. 2026-06-19 00:14 UTCOSV refresh
  29. 2026-06-18 17:52 UTCEPSS rescore
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  36. 2026-06-13 22:59 UTCEPSS rescore
  37. 2026-06-12 23:11 UTCEPSS rescore
  38. 2026-06-11 13:59 UTCEPSS rescore
  39. 2026-06-10 22:18 UTCEPSS rescore
  40. 2026-06-10 13:22 UTCEPSS rescore
  41. 2026-06-08 14:16 UTCEPSS rescore
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  43. 2026-06-07 15:24 UTCEPSS rescore
  44. 2026-06-07 15:24 UTCEPSS rescore
  45. 2026-06-06 13:47 UTCEPSS rescore
  46. 2026-06-06 13:47 UTCEPSS rescore
  47. 2026-06-05 22:46 UTCEPSS rescore
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  49. 2026-06-05 06:10 UTCEPSS rescore
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  51. 2026-06-04 13:11 UTCEPSS rescore
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  53. 2026-06-02 20:12 UTCEPSS rescore
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  59. 2026-05-31 00:16 UTCEPSS rescore
  60. 2026-05-31 00:16 UTCEPSS rescore
  61. 2026-05-30 13:08 UTCEG score recompute
  62. 2026-05-30 09:40 UTCOSV refresh
  63. 2026-05-29 13:44 UTCEPSS rescore

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2025-23206?
CVE-2025-23206 is a high vulnerability published on January 17, 2025. The AWS Cloud Development Kit (AWS CDK) is an open-source software development framework to define cloud infrastructure in code and provision it through AWS CloudFormation. Users who use IAM OIDC custom resource provider package will download CA Thumbprints as part of the custom resource workflow.…
When was CVE-2025-23206 disclosed?
CVE-2025-23206 was first published in the National Vulnerability Database on January 17, 2025, with the most recent update on January 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-23206 actively exploited?
CVE-2025-23206 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 24.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2025-23206?
CVE-2025-23206 has a CVSS v3 base score of 8.1 (NVD).
How do I remediate CVE-2025-23206?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-23206, 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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