CVE-2026-65904

MEDIUMPre-NVD 4.74.7—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 4.7 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.2%, top 89% 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
Trending — 3 sources updated this weekElevated
4.7EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 4.7Exploit: Elevated riskExposed: 0

A fix is available — apply it.

DOMPurify through 3.3.3 fails to sanitize DOM elements passed via IN_PLACE mode when the element originates from a different window/realm (e.g., an iframe's contentDocument). A cross-realm instanceof check in the private _isNode() function returns false for foreign-realm nodes, causing DOMPurify to stringify the element (yielding '[object HTMLDivElement]'), silently reset IN_PLACE to false, and return the unsanitized element unchanged with any XSS payloads intact.

CVSS v3
4.7
EG Score
4.7(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
Severity47% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
11%
KEV
Not listed

Published

July 23, 2026

Last Modified

July 28, 2026

Advisory Details (2)

Auto-updated Jul 23, 2026
🔬 Proof of concept available. Patch available. Sources: github.
generic

DOMPurify before 3.4.4 Cross-Site Scripting via IN_PLACE mode | Advisories | VulnCheck

https://www.vulncheck.com/advisories/dompurify-before-cross-site-scripting-via-in-place-mode
github Patch Available🟡 PoC Available

DOMPurify IN_PLACE mode fails to sanitize cross-window DOM elements, allowing XSS bypass · Advisory · cure53/DOMPurify · GitHub

https://github.com/cure53/DOMPurify/security/advisories/GHSA-4w3q-35jp-p934

Vendor Advisories for CVE-2026-65904(1)

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

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatgrafana13-1-main-13.1.3-0.1.1.hum12026-08-13redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(3 across 3 ecosystems)
Debian:12(1)
PackageVulnerable rangeFixed inDependents
node-dompurify2.4.1+dfsg+~2.4.0-1 ... 3.4.5+dfsg-1 (17 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
node-dompurify3.1.7+dfsg+~3.0.5-2 ... 3.4.5+dfsg-1 (11 versions)——
Debian:14(1)
PackageVulnerable rangeFixed inDependents
node-dompurify3.1.7+dfsg+~3.0.5-2 ... 3.4.2+dfsg-1 (7 versions)3.4.5+dfsg-1—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 14× in last 7d / 67× 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 122 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-65904?
CVE-2026-65904 is a medium vulnerability published on July 23, 2026. DOMPurify through 3.3.3 fails to sanitize DOM elements passed via INPLACE mode when the element originates from a different window/realm (e.g., an iframe's contentDocument). A cross-realm instanceof check in the private isNode() function returns false for foreign-realm nodes, causing DOMPurify to…
When was CVE-2026-65904 disclosed?
CVE-2026-65904 was first published in the National Vulnerability Database on July 23, 2026, with the most recent update on July 28, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-65904 actively exploited?
CVE-2026-65904 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 89.0% of all scored CVEs.
What is the CVSS score of CVE-2026-65904?
CVE-2026-65904 has a CVSS v3 base score of 4.7 (NVD).
How do I remediate CVE-2026-65904?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-65904, 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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