CVE-2026-54297

HIGHPre-NVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.5 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4%, top 69% 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, secondary
7.5
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.5Exploit: NoneExposed: 0

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

Faraday is an HTTP client library abstraction layer that provides a common interface over many adapters. From 1.0.0 until 1.10.6 and 2.14.3, Faraday::NestedParamsEncoder, the default nested query parameter encoder/decoder in Faraday, decodes nested query strings without enforcing a maximum nesting depth. A crafted query string causes Faraday to build a deeply nested Ruby Hash structure. The internal dehash routine then recursively walks this attacker-controlled structure without a depth limit. At sufficient depth, Ruby raises an uncaught SystemStackError (stack level too deep), crashing the calling thread or worker. This can lead to denial of service in applications that pass attacker-controlled query strings to Faraday's nested query parsing or URL-building paths. This vulnerability is fixed in 1.10.6 and 2.14.3.

CVSS v3
7.5
EG Score
7.5(medium)
EPSS
31.1%
KEV
Not listed

Published

June 19, 2026

Last Modified

June 30, 2026

Advisory Details (1)

Auto-updated Jun 24, 2026
🔬 Proof of concept available. Patch available. Sources: github.
github Patch Available🟡 PoC Available

Uncontrolled recursion in NestedParamsEncoder allows stack exhaustion DoS via deeply nested query parameters · Advisory · lostisland/faraday · GitHub

https://github.com/lostisland/faraday/security/advisories/GHSA-98m9-hrrm-r99r

Vendor Advisories for CVE-2026-54297(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Affected Packages

(1 across 1 ecosystem)
RubyGems(1)
PackageVulnerable rangeFixed inDependents
faraday0.0.1 ... 2.9.2 (158 versions)2.14.3—

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 23× in last 7d / 48× 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. 2026-07-06 20:38 UTCEG score recompute
  2. 2026-07-06 16:27 UTCEPSS rescore
  3. 2026-07-06 16:27 UTCEPSS rescore
  4. 2026-07-06 06:52 UTCEG score recompute
  5. 2026-07-06 02:23 UTCEPSS rescore
  6. 2026-07-06 02:23 UTCEPSS rescore
  7. 2026-07-05 18:09 UTCEG score recompute
  8. 2026-07-05 05:26 UTCEG score recompute
  9. 2026-07-05 02:31 UTCEPSS rescore
  10. 2026-07-05 02:30 UTCEPSS rescore
  11. 2026-07-04 16:14 UTCEG score recompute
  12. 2026-07-04 06:31 UTCEPSS rescore
  13. 2026-07-04 06:31 UTCEPSS rescore
  14. 2026-07-04 03:24 UTCEG score recompute
  15. 2026-07-03 14:42 UTCEG score recompute
  16. 2026-07-03 01:59 UTCEG score recompute
  17. 2026-07-02 13:16 UTCEG score recompute
  18. 2026-07-02 00:30 UTCEG score recompute
  19. 2026-07-01 15:07 UTCEPSS rescore
  20. 2026-07-01 11:45 UTCEG score recompute
  21. 2026-06-30 23:22 UTCEPSS rescore
  22. 2026-06-30 23:04 UTCEG score recompute
  23. 2026-06-30 10:21 UTCEG score recompute
  24. 2026-06-29 21:37 UTCEG score recompute
  25. 2026-06-29 08:53 UTCEG score recompute
Show 23 more
  1. 2026-06-28 20:10 UTCEG score recompute
  2. 2026-06-28 14:07 UTCEPSS rescore
  3. 2026-06-28 07:27 UTCEG score recompute
  4. 2026-06-28 04:56 UTCEPSS rescore
  5. 2026-06-28 04:56 UTCEPSS rescore
  6. 2026-06-27 18:45 UTCEG score recompute
  7. 2026-06-27 06:02 UTCEG score recompute
  8. 2026-06-27 03:08 UTCEPSS rescore
  9. 2026-06-26 17:19 UTCEG score recompute
  10. 2026-06-26 04:37 UTCEG score recompute
  11. 2026-06-25 15:54 UTCEG score recompute
  12. 2026-06-25 13:49 UTCEPSS rescore
  13. 2026-06-25 03:05 UTCEG score recompute
  14. 2026-06-24 14:23 UTCEG score recompute
  15. 2026-06-24 01:41 UTCEG score recompute
  16. 2026-06-23 12:58 UTCEG score recompute
  17. 2026-06-23 00:14 UTCEG score recompute
  18. 2026-06-22 11:25 UTCEG score recompute
  19. 2026-06-21 22:33 UTCEG score recompute
  20. 2026-06-21 09:50 UTCEG score recompute
  21. 2026-06-20 21:07 UTCEG score recompute
  22. 2026-06-20 08:20 UTCEG score recompute
  23. 2026-06-19 19:36 UTCEG score recompute

Frequently asked(5)

What is CVE-2026-54297?
CVE-2026-54297 is a high vulnerability published on June 19, 2026. Faraday is an HTTP client library abstraction layer that provides a common interface over many adapters. From 1.0.0 until 1.10.6 and 2.14.3, Faraday::NestedParamsEncoder, the default nested query parameter encoder/decoder in Faraday, decodes nested query strings without enforcing a maximum nesting…
When was CVE-2026-54297 disclosed?
CVE-2026-54297 was first published in the National Vulnerability Database on June 19, 2026, with the most recent update on June 30, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-54297 actively exploited?
CVE-2026-54297 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 31.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-54297?
CVE-2026-54297 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-54297?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-54297, 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.

Dependency Blast Radius

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