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 24× in last 7d / 104× 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 165 total refreshes for this CVE.

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

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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