CVE-2026-75838

MEDIUMPre-NVD 5.15.1—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 5.1 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.3%, top 77% 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 — 4 sources updated this weekElevated
5.1EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.1Exploit: Elevated riskExposed: 0

A fix is available — apply it.

DOMPurify before 3.4.13 contains a cross-site scripting vulnerability in IN_PLACE sanitization where element-removal hooks fail to neutralize detached subtrees. Attackers can supply HTML with event handlers on descendant elements that execute after sanitization completes, even though the returned root appears clean.

CVSS v3
5.1
EG Score
5.1(medium)
EG Risk
39(Track)
EG Risk 39/100SSVC: 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
Severity51% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
23%
KEV
Not listed

Published

August 18, 2026

Last Modified

August 18, 2026

Advisory Details (2)

Auto-updated Aug 18, 2026
🔬 Proof of concept available. Patch available. Sources: github.
generic

DOMPurify before 3.4.13 Cross-Site Scripting via IN_PLACE hook | Advisories | VulnCheck

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

IN_PLACE hook removal leaves a detached subtree executable, causing XSS · Advisory · cure53/DOMPurify · GitHub

https://github.com/cure53/DOMPurify/security/advisories/GHSA-55q2-fjhq-7xh7

Vendor Advisories for CVE-2026-75838(4)

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

Patch Availability(3)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatansible-automation-platform/automation-portal:17887757482026-09-08redhat
redhatansible-automation-platform/automation-portal:17887835912026-09-08redhat
redhatdevspaces/openvsx-rhel9:17877591452026-09-01redhat

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 (9 versions)3.4.13+dfsg-1—
npm(1)
PackageVulnerable rangeFixed inDependents
dompurify—3.4.13—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 25× in last 7d / 98× 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 109 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-75838?
CVE-2026-75838 is a medium vulnerability published on August 18, 2026. DOMPurify before 3.4.13 contains a cross-site scripting vulnerability in IN_PLACE sanitization where element-removal hooks fail to neutralize detached subtrees. Attackers can supply HTML with event handlers on descendant elements that execute after sanitization completes, even though the returned…
When was CVE-2026-75838 disclosed?
CVE-2026-75838 was first published in the National Vulnerability Database on August 18, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-75838 actively exploited?
CVE-2026-75838 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 77.1% of all scored CVEs.
What is the CVSS score of CVE-2026-75838?
CVE-2026-75838 has a CVSS v3 base score of 5.1 (NVD).
How do I remediate CVE-2026-75838?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-75838, 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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