CVE-2026-54605

HIGHPre-NVD 7.27.2—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.2 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.1%, top 97% 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
7.2EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.2Exploit: None knownExposed: 0

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

OAuth is a Ruby wrapper for the OAuth 1.0 and 1.0a protocols, providing clients and servers. From 0.5.5 to 1.1.5, OAuth::Consumer#token_request parses the raw Location header of a 300 to 399 redirect returned by the OAuth server and follows the redirect recursively, which can mutate the consumer's configuration and expose signed OAuth request metadata, including the Authorization header, to a cross-origin host. This issue is fixed in version 1.1.6.

CVSS v3
7.2
EG Score
7.2(medium)
EG Risk
37(Track)
EG Risk 37/100SSVC: 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
Severity72% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
3%
KEV
Not listed

Published

July 28, 2026

Last Modified

September 9, 2026

Advisory Details (3)

Auto-updated Jul 28, 2026
Patch available. Sources: github, github_commit, github_release.
github_release Patch Available

v1.1.6

Patch available: ruby-oauth/oauth v1.1.6

https://github.com/ruby-oauth/oauth/releases/tag/v1.1.6
github_commit Patch Available

commit d069dc8c4c96 (ruby-oauth/oauth)

Patch available: ruby-oauth/oauth v1.1.6 (contains commit d069dc8c4c96)

https://github.com/ruby-oauth/oauth/commit/d069dc8c4c9631947451215f07460d6cdf0caf3f
github Patch Available

Cross-origin OAuth token-request redirects can expose signed request metadata · Advisory · ruby-oauth/oauth · GitHub

https://github.com/ruby-oauth/oauth/security/advisories/GHSA-prq8-7wvh-44qh

Vendor Advisories for CVE-2026-54605(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
oauth0.5.10 ... 1.1.5 (22 versions)1.1.6—

Weakness Classification(3)

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

Data Freshness Timeline

(refreshed 9× 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. 2026-09-15 08:38 UTCEG score recompute
  2. 2026-09-15 03:11 UTCEPSS rescore
  3. 2026-09-14 00:43 UTCEG score recompute
  4. 2026-09-13 16:47 UTCEPSS rescore
  5. 2026-09-12 15:57 UTCEG score recompute
  6. 2026-09-11 18:05 UTCEG score recompute
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  8. 2026-09-10 09:35 UTCEPSS rescore
  9. 2026-09-09 08:01 UTCEG score recompute
  10. 2026-09-08 22:01 UTCEPSS rescore
  11. 2026-09-07 20:55 UTCEG score recompute
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  15. 2026-09-05 19:10 UTCEG score recompute
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  18. 2026-09-01 13:54 UTCEPSS rescore
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  20. 2026-08-30 21:29 UTCEG score recompute
  21. 2026-08-30 19:17 UTCEPSS rescore
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  25. 2026-08-28 21:41 UTCEPSS rescore
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  1. 2026-08-27 22:30 UTCEG score recompute
  2. 2026-08-27 14:25 UTCEPSS rescore
  3. 2026-08-27 00:39 UTCEG score recompute
  4. 2026-08-26 14:46 UTCEPSS rescore
  5. 2026-08-25 15:48 UTCEG score recompute
  6. 2026-08-25 13:49 UTCEPSS rescore
  7. 2026-08-24 17:56 UTCEG score recompute
  8. 2026-08-23 08:16 UTCEG score recompute
  9. 2026-08-23 00:19 UTCEPSS rescore
  10. 2026-08-22 10:16 UTCEG score recompute
  11. 2026-08-21 23:49 UTCEPSS rescore
  12. 2026-08-21 01:21 UTCEG score recompute
  13. 2026-08-20 22:55 UTCEPSS rescore
  14. 2026-08-20 03:29 UTCEG score recompute
  15. 2026-08-19 17:04 UTCEPSS rescore
  16. 2026-08-18 18:39 UTCEG score recompute
  17. 2026-08-18 13:48 UTCEPSS rescore
  18. 2026-08-17 19:56 UTCEG score recompute
  19. 2026-08-17 13:47 UTCEPSS rescore
  20. 2026-08-16 21:32 UTCEG score recompute
  21. 2026-08-16 14:56 UTCEPSS rescore
  22. 2026-08-16 10:37 UTCEG score recompute
  23. 2026-08-16 02:14 UTCEPSS rescore
  24. 2026-08-15 01:51 UTCEG score recompute
  25. 2026-08-15 01:30 UTCEPSS rescore
  26. 2026-08-14 04:00 UTCEG score recompute
  27. 2026-08-13 22:00 UTCEPSS rescore
  28. 2026-08-12 19:12 UTCEG score recompute
  29. 2026-08-12 13:51 UTCEPSS rescore
  30. 2026-08-11 21:21 UTCEG score recompute
  31. 2026-08-11 10:26 UTCEG score recompute
  32. 2026-08-11 00:00 UTCEPSS rescore
  33. 2026-08-09 14:45 UTCEG score recompute
  34. 2026-08-09 13:46 UTCEPSS rescore
  35. 2026-08-08 16:55 UTCEG score recompute
  36. 2026-08-08 16:37 UTCEPSS rescore
  37. 2026-08-06 21:13 UTCEG score recompute
  38. 2026-08-06 13:47 UTCEPSS rescore
  39. 2026-08-05 23:22 UTCEG score recompute
  40. 2026-08-05 19:17 UTCEPSS rescore
  41. 2026-08-05 01:25 UTCEG score recompute
  42. 2026-08-04 15:10 UTCEPSS rescore
  43. 2026-08-04 14:30 UTCEG score recompute
  44. 2026-08-04 10:39 UTCEPSS rescore
  45. 2026-08-03 16:39 UTCEG score recompute
  46. 2026-08-03 10:36 UTCEPSS rescore
  47. 2026-08-02 07:50 UTCEG score recompute
  48. 2026-08-02 02:27 UTCEPSS rescore
  49. 2026-08-01 09:59 UTCEG score recompute
  50. 2026-08-01 04:16 UTCEPSS rescore
  51. 2026-07-31 01:07 UTCEG score recompute
  52. 2026-07-30 16:28 UTCEPSS rescore
  53. 2026-07-30 14:10 UTCEG score recompute
  54. 2026-07-30 03:12 UTCEG score recompute
  55. 2026-07-30 01:30 UTCEPSS rescore
  56. 2026-07-28 17:22 UTCEG score recompute
  57. 2026-07-28 16:53 UTCEG score recompute
  58. 2026-07-28 16:53 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-54605?
CVE-2026-54605 is a high vulnerability published on July 28, 2026. OAuth is a Ruby wrapper for the OAuth 1.0 and 1.0a protocols, providing clients and servers. From 0.5.5 to 1.1.5, OAuth::Consumer#token_request parses the raw Location header of a 300 to 399 redirect returned by the OAuth server and follows the redirect recursively, which can mutate the consumer's…
When was CVE-2026-54605 disclosed?
CVE-2026-54605 was first published in the National Vulnerability Database on July 28, 2026, with the most recent update on September 9, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-54605 actively exploited?
CVE-2026-54605 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 96.9% of all scored CVEs.
What is the CVSS score of CVE-2026-54605?
CVE-2026-54605 has a CVSS v3 base score of 7.2 (NVD).
How do I remediate CVE-2026-54605?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-54605, 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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