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% (20th percentile of EPSS-scored CVEs). 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: 0.3%CVSS: 5.1Exploit: Elevated riskExposed services: Not assessed

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
5.1MEDIUMmedium confidence
EG Risk
39
EG Risk 39/100CISA 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
Severity51% × 45%
Exploitation40% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.3%
EPSS %ILE
20th
KEV
Not listed

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

A fix is available. Apply it within your standard update timelines.

Exploitation public PoC (CISA Vulnrichment) · Automatable no (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 18, 2026

Last Modified

September 24, 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(13)

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

Patch Availability(12)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatgrafana13-2-main-13.2.1-0.7.hum12026-09-25redhat
redhatautomation-platform-ui-0:2.6.14-1.el9ap2026-09-23redhat
redhatgrafana13-2-main-13.2.1-0.6.hum12026-09-23redhat
redhatgrafana12-4-main-12.4.10-0.7.hum12026-09-23redhat
redhatopenshift-service-mesh/kiali-rhel9:17890213192026-09-17redhat
redhatopenshift-service-mesh/kiali-rhel9:17890273952026-09-17redhat
redhatgrafana13-1-main-13.1.3-0.9.hum12026-09-15redhat
redhatadvanced-cluster-security/rhacs-main-rhel8:17894112692026-09-15redhat
redhatadvanced-cluster-security/rhacs-main-rhel9:17894113202026-09-15redhat
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 rangeFix by version rangeDependents
node-dompurify2.4.1+dfsg+~2.4.0-1 ... 3.4.5+dfsg-1 (17 versions)
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
node-dompurify3.1.7+dfsg+~3.0.5-2 ... 3.4.5+dfsg-1 (11 versions)
  • every version on: no fix on record
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
node-dompurify3.1.7+dfsg+~3.0.5-2 ... 3.4.5+dfsg-1 (9 versions)
  • every version up to 3.4.13+dfsg-1: fixed in 3.4.13+dfsg-1
—
npm(1)
PackageVulnerable rangeFix by version rangeDependents
dompurify—
  • every version up to 3.4.13: fixed in 3.4.13
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 22× in last 7d / 101× 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 162 total refreshes for this CVE.

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

Related CVEs(same product + same vendor + same CWE)

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 on August 18, 2026, with the most recent update on September 24, 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 0.3% probability of exploitation in the next 30 days (20th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-75838?
CVE-2026-75838 has a CVSS base score of 5.1 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-75838?
A fix for CVE-2026-75838 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-75838 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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