CVE-2026-49331

MEDIUMPre-NVD 6.56.5—
EchelonGraph scoreMEDIUM confidence

Score 6.5 from GitHub Security Advisory published 2026-08-05. A secondary CVSS source baseline 6.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
6.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 6.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

A flaw was found in openshift/oauth-proxy. On paths configured to bypass authentication (skip-auth-regex), the proxy forwards client-supplied identity headers (X-Forwarded-User, X-Forwarded-Email, X-Forwarded-Access-Token) to the upstream application without stripping them. An unauthenticated attacker can inject forged identity headers on whitelisted paths.

CVSS v3
6.5
EG Score
6.5MEDIUMmedium confidence
EG Risk
44
EG Risk 44/100CISA SSVC

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
Severity65% × 45%
Exploitation0% × 40%
Automatability100% × 15%
CISA SSVC: Track at low or medium mission impact; Attend at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.2%
EPSS %ILE
7th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

August 5, 2026

Last Modified

August 6, 2026

Advisory Details (2)

Auto-updated Aug 5, 2026
Patch available. Sources: redhat.
redhat

2483252 – (CVE-2026-49331) CVE-2026-49331 openshift/oauth-proxy: openshift/oauth-proxy: unauthenticated identity header injection on whitelisted paths

https://bugzilla.redhat.com/show_bug.cgi?id=2483252
redhat Patch Available

CVE-2026-49331 - Red Hat Customer Portal

Affected: Red Hat Enterprise Linux 8 or OpenShift Container Platform 4, is affected by this vulnerability and a fix may be released to a

https://access.redhat.com/security/cve/CVE-2026-49331

Vendor Advisories for CVE-2026-49331(1)

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

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 13× in last 7d / 62× 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 150 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2026-49331?
CVE-2026-49331 is a medium vulnerability published on August 5, 2026. A flaw was found in openshift/oauth-proxy. On paths configured to bypass authentication (skip-auth-regex), the proxy forwards client-supplied identity headers (X-Forwarded-User, X-Forwarded-Email, X-Forwarded-Access-Token) to the upstream application without stripping them. An unauthenticated…
When was CVE-2026-49331 disclosed?
CVE-2026-49331 was first published on August 5, 2026, with the most recent update on August 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-49331 actively exploited?
CVE-2026-49331 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (7th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-49331?
CVE-2026-49331 has a CVSS base score of 6.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-49331?
A fix for CVE-2026-49331 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-49331 are linked in the Vendor Advisories panel on this page.

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