CVE-2026-50631

HIGHPre-NVD 7.47.4—
EchelonGraph scoreMEDIUM confidence

Score 7.4 from GitHub Security Advisory (severity: HIGH) published 2026-06-12. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 7.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
7.4EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.4Exploit: None knownExposed: 0

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

A race condition in AbstractOAuthDataProvider allows concurrent requests using the same Refresh Token to bypass single-use semantics and generate multiple valid Access Tokens, when 'recycleRefreshTokens' is set to false. A leaked refresh token can be replayed concurrently by multiple attackers or threads. Users are recommended to upgrade to versions 4.2.2 or 4.1.7 or 3.6.12, which fixes this issue.

CVSS v3
7.4
EG Score
7.4(medium)
EG Risk
33(Track)
EG Risk 33/100SSVC: 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
Severity74% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
21%
KEV
Not listed

Published

June 12, 2026

Last Modified

August 7, 2026

Advisory Details (2)

Auto-updated Jun 12, 2026
No patch confirmed yet.
generic

oss-security - CVE-2026-50631: Apache CXF: OAuth2: TOCTOU Race Condition in Refresh Token Processing

http://www.openwall.com/lists/oss-security/2026/06/11/8
generic
https://lists.apache.org/thread/s83t3x4r626o9h8rt0ryr1w7w53l1vv8

Vendor Advisories for CVE-2026-50631(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)
Maven(1)
PackageVulnerable rangeFixed inDependents
org.apache.cxf:cxf-rt-rs-security-oauth22.6.0 ... 4.1.6 (159 versions)4.1.7—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 5× in last 7d / 27× 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 237 total refreshes for this CVE.

  1. 2026-09-18 19:28 UTCEPSS rescore
  2. 2026-09-16 14:08 UTCEPSS rescore
  3. 2026-09-16 05:15 UTCEPSS rescore
  4. 2026-09-14 04:04 UTCEG score recompute
  5. 2026-09-13 16:47 UTCEPSS rescore
  6. 2026-09-11 14:53 UTCEPSS rescore
  7. 2026-09-10 09:35 UTCEPSS rescore
  8. 2026-09-08 22:01 UTCEPSS rescore
  9. 2026-09-07 16:01 UTCEPSS rescore
  10. 2026-09-06 13:47 UTCEPSS rescore
  11. 2026-09-04 05:06 UTCEPSS rescore
  12. 2026-09-02 14:12 UTCEPSS rescore
  13. 2026-09-01 13:54 UTCEPSS rescore
  14. 2026-09-01 04:40 UTCEPSS rescore
  15. 2026-08-30 23:48 UTCEG score recompute
  16. 2026-08-30 19:17 UTCEPSS rescore
  17. 2026-08-30 01:22 UTCEPSS rescore
  18. 2026-08-28 21:41 UTCEPSS rescore
  19. 2026-08-27 14:25 UTCEPSS rescore
  20. 2026-08-26 14:46 UTCEPSS rescore
  21. 2026-08-25 13:49 UTCEPSS rescore
  22. 2026-08-24 23:51 UTCEG score recompute
  23. 2026-08-23 10:37 UTCEG score recompute
  24. 2026-08-23 00:19 UTCEPSS rescore
  25. 2026-08-21 23:49 UTCEPSS rescore
Show 75 more
  1. 2026-08-21 07:41 UTCEG score recompute
  2. 2026-08-20 22:55 UTCEPSS rescore
  3. 2026-08-20 08:48 UTCEG score recompute
  4. 2026-08-20 08:48 UTCGHSA enrichment
  5. 2026-08-19 17:04 UTCEPSS rescore
  6. 2026-08-19 13:46 UTCEG score recompute
  7. 2026-08-19 13:46 UTCGHSA enrichment
  8. 2026-08-18 13:48 UTCEPSS rescore
  9. 2026-08-17 13:47 UTCEPSS rescore
  10. 2026-08-17 10:07 UTCGHSA enrichment
  11. 2026-08-16 22:54 UTCEG score recompute
  12. 2026-08-16 22:54 UTCGHSA enrichment
  13. 2026-08-16 14:56 UTCEPSS rescore
  14. 2026-08-16 10:53 UTCEG score recompute
  15. 2026-08-16 10:53 UTCGHSA enrichment
  16. 2026-08-16 02:14 UTCEPSS rescore
  17. 2026-08-15 23:40 UTCGHSA enrichment
  18. 2026-08-15 10:36 UTCEG score recompute
  19. 2026-08-15 10:36 UTCGHSA enrichment
  20. 2026-08-15 01:30 UTCEPSS rescore
  21. 2026-08-14 20:39 UTCGHSA enrichment
  22. 2026-08-14 09:26 UTCGHSA enrichment
  23. 2026-08-13 22:12 UTCEG score recompute
  24. 2026-08-13 22:12 UTCGHSA enrichment
  25. 2026-08-13 22:00 UTCEPSS rescore
  26. 2026-08-13 05:39 UTCGHSA enrichment
  27. 2026-08-12 18:24 UTCEG score recompute
  28. 2026-08-12 18:24 UTCGHSA enrichment
  29. 2026-08-12 13:51 UTCEPSS rescore
  30. 2026-08-12 07:05 UTCGHSA enrichment
  31. 2026-08-11 18:27 UTCEG score recompute
  32. 2026-08-11 18:27 UTCGHSA enrichment
  33. 2026-08-11 07:13 UTCEG score recompute
  34. 2026-08-11 07:13 UTCGHSA enrichment
  35. 2026-08-11 00:00 UTCEPSS rescore
  36. 2026-08-10 20:00 UTCGHSA enrichment
  37. 2026-08-10 08:46 UTCGHSA enrichment
  38. 2026-08-09 21:33 UTCEG score recompute
  39. 2026-08-09 21:33 UTCGHSA enrichment
  40. 2026-08-09 13:46 UTCEPSS rescore
  41. 2026-08-09 10:19 UTCGHSA enrichment
  42. 2026-08-08 23:06 UTCGHSA enrichment
  43. 2026-08-08 11:52 UTCGHSA enrichment
  44. 2026-08-08 00:39 UTCEG score recompute
  45. 2026-08-08 00:39 UTCGHSA enrichment
  46. 2026-08-07 13:26 UTCGHSA enrichment
  47. 2026-08-07 12:48 UTCEG score recompute
  48. 2026-08-07 12:48 UTCGHSA enrichment
  49. 2026-08-07 05:37 UTCGHSA enrichment
  50. 2026-08-06 18:24 UTCEG score recompute
  51. 2026-08-06 18:24 UTCGHSA enrichment
  52. 2026-08-06 13:47 UTCEPSS rescore
  53. 2026-08-06 07:10 UTCGHSA enrichment
  54. 2026-08-05 19:56 UTCEG score recompute
  55. 2026-08-05 19:56 UTCGHSA enrichment
  56. 2026-08-05 19:17 UTCEPSS rescore
  57. 2026-08-04 15:47 UTCEG score recompute
  58. 2026-08-04 15:47 UTCGHSA enrichment
  59. 2026-08-04 15:10 UTCEPSS rescore
  60. 2026-08-04 10:39 UTCEPSS rescore
  61. 2026-08-03 21:14 UTCEG score recompute
  62. 2026-08-03 21:14 UTCGHSA enrichment
  63. 2026-08-03 10:36 UTCEPSS rescore
  64. 2026-08-03 10:00 UTCGHSA enrichment
  65. 2026-08-02 19:02 UTCGHSA enrichment
  66. 2026-08-02 07:48 UTCEG score recompute
  67. 2026-08-02 07:48 UTCGHSA enrichment
  68. 2026-08-02 02:27 UTCEPSS rescore
  69. 2026-08-01 20:33 UTCGHSA enrichment
  70. 2026-08-01 09:19 UTCEG score recompute
  71. 2026-08-01 09:19 UTCGHSA enrichment
  72. 2026-08-01 04:16 UTCEPSS rescore
  73. 2026-07-31 13:33 UTCGHSA enrichment
  74. 2026-07-31 00:34 UTCEG score recompute
  75. 2026-07-31 00:34 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2026-50631?
CVE-2026-50631 is a high vulnerability published on June 12, 2026. A race condition in AbstractOAuthDataProvider allows concurrent requests using the same Refresh Token to bypass single-use semantics and generate multiple valid Access Tokens, when 'recycleRefreshTokens' is set to false. A leaked refresh token can be replayed concurrently by multiple attackers or…
When was CVE-2026-50631 disclosed?
CVE-2026-50631 was first published in the National Vulnerability Database on June 12, 2026, with the most recent update on August 7, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-50631 actively exploited?
CVE-2026-50631 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 79.0% of all scored CVEs.
What is the CVSS score of CVE-2026-50631?
CVE-2026-50631 has a CVSS v3.1 base score of 7.4 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-50631?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-50631, 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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