CVE-2025-66029

HIGHNVD 7.67.6—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.6 under NVD CVSS v3. EPSS exploit probability: 0.2%, top 93% 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
7.6EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.6Exploit: None knownExposed: 0

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

Open OnDemand provides remote web access to supercomputers. In versions 4.0.8 and prior, the Apache proxy allows sensitive headers to be passed to origin servers. This means malicious users can create an origin server on a compute node that record these headers when unsuspecting users connect to it. Maintainers anticipate a patch in a 4.1 release. Workarounds exist for 4.0.x versions. Using custom_location_directives in ood_portal.yml in version 4.0.x (not available for versions below 4.0) centers can unset and or edit these headers. Note that OIDCPassClaimsAs both is the default and centers can set OIDCPassClaimsAs to none or environment to stop passing these headers to the client. Centers that have an OIDC provider with the OIDCPassClaimsAs with none or environment settings can adjust the settings using guidance provided in GHSA-2cwp-8g29-9q32 to unset the mod_auth_openidc_session cookies.

CVSS v3
7.6
EG Score
7.6(medium)
EG Risk
34(Track)
EG Risk 34/100SSVC: 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
Severity76% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
10%
KEV
Not listed

Published

December 17, 2025

Last Modified

February 18, 2026

Advisory Details (1)

Auto-updated Aug 6, 2026
Patch available. Sources: github.
github Patch Available

Apache proxy passing sensitive headers to origins · Advisory · OSC/ondemand · GitHub

Affected: 4.1. Workarounds exist for 4.0.x versions and are detailed below.

https://github.com/OSC/ondemand/security/advisories/GHSA-2cwp-8g29-9q32

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 7× 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 153 total refreshes for this CVE.

  1. 2026-09-18 19:27 UTCEPSS rescore
  2. 2026-09-17 19:30 UTCEPSS rescore
  3. 2026-09-16 14:07 UTCEPSS rescore
  4. 2026-09-15 03:10 UTCEPSS rescore
  5. 2026-09-14 07:20 UTCOSV refresh
  6. 2026-09-13 16:46 UTCEPSS rescore
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  20. 2026-08-27 14:24 UTCEPSS rescore
  21. 2026-08-26 14:45 UTCEPSS rescore
  22. 2026-08-26 08:43 UTCOSV refresh
  23. 2026-08-25 13:48 UTCEPSS rescore
  24. 2026-08-24 14:16 UTCEPSS rescore
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  1. 2026-08-21 23:48 UTCEPSS rescore
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  3. 2026-08-19 17:03 UTCEPSS rescore
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  10. 2026-08-13 21:59 UTCEPSS rescore
  11. 2026-08-12 13:50 UTCEPSS rescore
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  13. 2026-08-10 23:59 UTCEPSS rescore
  14. 2026-08-09 23:24 UTCEG score recompute
  15. 2026-08-09 13:46 UTCEPSS rescore
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  18. 2026-08-08 06:11 UTCEG score recompute
  19. 2026-08-07 16:26 UTCEPSS rescore
  20. 2026-08-06 13:46 UTCEPSS rescore
  21. 2026-08-06 07:53 UTCEG score recompute
  22. 2026-08-05 19:17 UTCEPSS rescore
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  24. 2026-08-04 15:09 UTCEPSS rescore
  25. 2026-08-04 10:37 UTCEPSS rescore
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  27. 2026-08-02 02:26 UTCEPSS rescore
  28. 2026-08-01 04:15 UTCEPSS rescore
  29. 2026-07-30 16:27 UTCEPSS rescore
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  31. 2026-07-28 15:35 UTCEPSS rescore
  32. 2026-07-27 14:12 UTCEPSS rescore
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  35. 2026-07-25 14:17 UTCEPSS rescore
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  38. 2026-07-23 12:19 UTCOSV refresh
  39. 2026-07-23 03:01 UTCEG score recompute
  40. 2026-07-22 14:08 UTCEPSS rescore
  41. 2026-07-21 15:24 UTCEPSS rescore
  42. 2026-07-20 17:08 UTCEPSS rescore
  43. 2026-07-19 14:30 UTCEPSS rescore
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  45. 2026-07-19 02:28 UTCEPSS rescore
  46. 2026-07-18 10:04 UTCEPSS rescore
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  48. 2026-07-16 17:02 UTCEPSS rescore
  49. 2026-07-15 16:57 UTCEPSS rescore
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  51. 2026-07-15 01:59 UTCEPSS rescore
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  53. 2026-07-13 22:29 UTCEPSS rescore
  54. 2026-07-13 06:12 UTCEPSS rescore
  55. 2026-07-12 05:46 UTCEPSS rescore
  56. 2026-07-11 08:27 UTCEPSS rescore
  57. 2026-07-09 19:09 UTCEPSS rescore
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  60. 2026-07-06 16:27 UTCEPSS rescore
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  62. 2026-07-06 07:32 UTCOSV refresh
  63. 2026-07-06 02:23 UTCEPSS rescore
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  67. 2026-07-04 06:31 UTCEPSS rescore
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  69. 2026-07-01 15:06 UTCEPSS rescore
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  71. 2026-06-30 23:22 UTCEPSS rescore
  72. 2026-06-29 14:06 UTCEPSS rescore
  73. 2026-06-29 14:06 UTCEPSS rescore
  74. 2026-06-28 14:07 UTCEPSS rescore
  75. 2026-06-28 14:07 UTCEPSS rescore

Frequently asked(5)

What is CVE-2025-66029?
CVE-2025-66029 is a high vulnerability published on December 17, 2025. Open OnDemand provides remote web access to supercomputers. In versions 4.0.8 and prior, the Apache proxy allows sensitive headers to be passed to origin servers. This means malicious users can create an origin server on a compute node that record these headers when unsuspecting users connect to…
When was CVE-2025-66029 disclosed?
CVE-2025-66029 was first published in the National Vulnerability Database on December 17, 2025, with the most recent update on February 18, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-66029 actively exploited?
CVE-2025-66029 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 89.7% of all scored CVEs.
What is the CVSS score of CVE-2025-66029?
CVE-2025-66029 has a CVSS v3 base score of 7.6 (NVD).
How do I remediate CVE-2025-66029?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-66029, 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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