CVE-2026-65898

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: 0.2%, top 88% 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 week
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

A fix is available — apply it.

DOMPurify before 3.4.11 fails to clone the ALLOWED_ATTR allowlist when setConfig() is used with an uponSanitizeAttribute hook, allowing the hook to permanently mutate the shared allowlist. Attackers can register a hook that conditionally allows dangerous attributes like onerror for trusted elements, then submit untrusted content that inherits the polluted allowlist and executes event handlers as stored XSS.

CVSS v3
7.2
EG Score
7.2(medium)
EG Risk
32(Track)
EG Risk 32/100SSVC: 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%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
12%
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 3.4.11 Permanent Attribute Allowlist Pollution via setConfig | Advisories | VulnCheck

https://www.vulncheck.com/advisories/dompurify-before-permanent-attribute-allowlist-pollution-via-setconfig
github Patch Available🟡 PoC Available

Permanent `ALLOWED_ATTR` pollution via `setConfig()` bypassing the hook clone-guard (incomplete fix of the 3.4.7 hook-pollution patch) · Advisory · cure53/DOMPurify · GitHub

https://github.com/cure53/DOMPurify/security/advisories/GHSA-cmwh-pvxp-8882

Vendor Advisories for CVE-2026-65898(3)

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

Patch Availability(2)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatgrafana12-4-main-12.4.8-0.1.2.hum12026-08-22redhat
redhatgrafana13-1-main-13.1.3-0.1.3.hum12026-08-22redhat

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

(4 across 4 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 ... 3.4.5+dfsg-1 (8 versions)3.4.12+dfsg-1—
npm(1)
PackageVulnerable rangeFixed inDependents
dompurify—3.4.11—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 18× in last 7d / 77× 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 133 total refreshes for this CVE.

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

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-65898?
CVE-2026-65898 is a high vulnerability published on July 23, 2026. DOMPurify before 3.4.11 fails to clone the ALLOWED_ATTR allowlist when setConfig() is used with an uponSanitizeAttribute hook, allowing the hook to permanently mutate the shared allowlist. Attackers can register a hook that conditionally allows dangerous attributes like onerror for trusted…
When was CVE-2026-65898 disclosed?
CVE-2026-65898 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-2026-65898 actively exploited?
CVE-2026-65898 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 88.1% of all scored CVEs.
What is the CVSS score of CVE-2026-65898?
CVE-2026-65898 has a CVSS v3 base score of 7.2 (NVD).
How do I remediate CVE-2026-65898?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-65898, 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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