CVE-2026-41240

MEDIUMNVD 6.16.1
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to NVD's CVSS score.

This medium-severity CVE scores 6.1 under NVD CVSS v3. EPSS exploit probability: 0.4% (33rd percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from NVD CVSS v3
Sources: EPSS, NVD CVSS v3
Trending — 3 sources updated this weekElevated
6.1EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (the SSVC decision on this page).
  • CISA's Vulnrichment rates exploitation as PoC; EchelonGraph holds no exploit-code reference for it
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 6.1Exploit: No code on recordExposed services: Not assessed

A fix is available — apply it.

DOMPurify is a DOM-only cross-site scripting sanitizer for HTML, MathML, and SVG. Versions prior to 3.4.0 have an inconsistency between FORBID_TAGS and FORBID_ATTR handling when function-based ADD_TAGS is used. Commit c361baa added an early exit for FORBID_ATTR at line 1214. The same fix was not applied to FORBID_TAGS. At line 1118-1123, when EXTRA_ELEMENT_HANDLING.tagCheck returns true, the short-circuit evaluation skips the FORBID_TAGS check entirely. This allows forbidden elements to survive sanitization with their attributes intact. Version 3.4.0 patches the issue.

CVSS v3
6.1
EG Score
6.1MEDIUMmedium confidence
EG Risk
43
EG Risk 43/100

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 (value × EchelonGraph’s weight)
Severity61% × 45%
The EG Score, 6.1 of 10.
Exploitation40% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.4%
EPSS %ILE
33rd
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track 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). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

April 23, 2026

Last Modified

April 29, 2026

Advisory Details (3)

Auto-updated Aug 2, 2026
Patch available. Sources: github_commit, github_release, github.
GitHub advisoryMentions a patch (unverified)

FORBID_TAGS bypassed by function-based ADD_TAGS predicate (asymmetry with FORBID_ATTR fix) · Advisory · cure53/DOMPurify · GitHub

https://github.com/cure53/DOMPurify/security/advisories/GHSA-h7mw-gpvr-xq4m
GitHub release Patch Available

DOMPurify 3.4.0

Patch available: cure53/DOMPurify 3.4.0

https://github.com/cure53/DOMPurify/releases/tag/3.4.0
GitHub commit Patch Available

commit c361baa18dbd (cure53/DOMPurify)

Patch available: cure53/DOMPurify 3.3.3 (contains commit c361baa18dbd)

https://github.com/cure53/DOMPurify/commit/c361baa18dbdcb3344a41110f4c48ad85bf48f80

Vendor Advisories for CVE-2026-41240(17)

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

Patch Availability(15)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatcontainer-native-virtualization/kubevirt-console-plugin-rhel9:17824268162026-07-07redhat
redhatcontainer-native-virtualization/kubevirt-console-plugin-rhel9:17829179832026-07-07redhat
redhatdompurify2026-07-02redhat
redhatautomation-platform-ui-0:2.6.10-1.el9ap2026-07-01redhat
redhatcontainer-native-virtualization/kubevirt-console-plugin-rhel9:17818242662026-06-22redhat
redhatcryostat/cryostat-rhel9:4.2.0-102026-06-22redhat
redhatcontainer-native-virtualization/kubevirt-console-plugin-rhel9:17818224412026-06-22redhat
redhatcontainer-native-virtualization/kubevirt-console-plugin-rhel9:17818079442026-06-22redhat
redhatcontainer-native-virtualization/kubevirt-console-plugin-rhel9:17817387132026-06-22redhat
redhatcontainer-native-virtualization/kubevirt-console-plugin-rhel9:17818081462026-06-22redhat
redhatcontainer-native-virtualization/kubevirt-console-plugin-rhel9:17818219912026-06-22redhat
redhatrhoai/odh-mod-arch-model-registry-rhel9:17804671472026-06-10redhat
redhatdevspaces/openvsx-rhel9:17795282242026-05-28redhat
redhatrhdh/rhdh-hub-rhel9:17798415862026-05-27redhat
redhatopenshift-service-mesh/kiali-ossmc-rhel8:17781914732026-05-12redhat

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 (18 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 (12 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, 3.2.5+dfsg-1, 3.3.2+dfsg-1, 3.3.3+dfsg-1, 3.3.3+dfsg-2
  • every version up to 3.4.1+dfsg-1: fixed in 3.4.1+dfsg-1
—
npm(1)
PackageVulnerable rangeFix by version rangeDependents
dompurify—
  • every version up to 3.4.0: fixed in 3.4.0
—

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 12× in last 7d / 28× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 100 of 212 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 112 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-16 16:42 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  2. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  3. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  4. 2026-10-13 23:24 UTCOSV refresh
  5. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  6. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  7. 2026-10-12 16:08 UTCEG score recompute
  8. 2026-10-11 19:51 UTCEG score recompute
  9. 2026-10-11 17:04 UTCEG score recompute
  10. 2026-10-11 14:30 UTCEG score recompute
  11. 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  12. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  13. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  14. 2026-10-08 17:12 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  15. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  16. 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  17. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  18. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  19. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  20. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  21. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  22. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  23. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  24. 2026-09-23 17:53 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  25. 2026-09-23 08:53 UTCOSV refresh
Show 75 more
  1. 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  2. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  3. 2026-09-17 19:31 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  4. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  5. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  6. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  7. 2026-09-12 15:01 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  8. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  9. 2026-09-11 09:37 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  10. 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  11. 2026-09-08 22:00 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  12. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  13. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  14. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  15. 2026-09-04 03:29 UTCOSV refresh
  16. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  17. 2026-09-01 13:53 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  18. 2026-09-01 04:39 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  19. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  20. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  21. 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  22. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  23. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  24. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  25. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  26. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  27. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  28. 2026-08-19 17:03 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  29. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  30. 2026-08-17 14:58 UTCEG score recompute
  31. 2026-08-17 14:58 UTCVendor advisory
  32. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  33. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  34. 2026-08-16 05:54 UTCEG score recompute
  35. 2026-08-16 05:54 UTCVendor advisory
  36. 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  37. 2026-08-15 02:06 UTCEG score recompute
  38. 2026-08-15 02:06 UTCVendor advisory
  39. 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  40. 2026-08-14 04:14 UTCEG score recompute
  41. 2026-08-14 04:14 UTCVendor advisory
  42. 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  43. 2026-08-12 21:59 UTCEG score recompute
  44. 2026-08-12 21:59 UTCVendor advisory
  45. 2026-08-12 13:51 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  46. 2026-08-12 00:12 UTCEG score recompute
  47. 2026-08-12 00:12 UTCVendor advisory
  48. 2026-08-11 13:43 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  49. 2026-08-11 02:14 UTCEG score recompute
  50. 2026-08-11 02:14 UTCVendor advisory
  51. 2026-08-11 00:00 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  52. 2026-08-10 01:12 UTCEG score recompute
  53. 2026-08-10 01:12 UTCVendor advisory
  54. 2026-08-09 13:46 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  55. 2026-08-09 03:25 UTCEG score recompute
  56. 2026-08-09 03:25 UTCVendor advisory
  57. 2026-08-08 16:37 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  58. 2026-08-07 18:53 UTCEG score recompute
  59. 2026-08-07 18:53 UTCVendor advisory
  60. 2026-08-06 20:47 UTCEG score recompute
  61. 2026-08-06 20:47 UTCVendor advisory
  62. 2026-08-06 13:46 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  63. 2026-08-05 23:00 UTCEG score recompute
  64. 2026-08-05 23:00 UTCVendor advisory
  65. 2026-08-05 19:17 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  66. 2026-08-04 15:10 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  67. 2026-08-04 10:38 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  68. 2026-08-03 21:10 UTCEG score recompute
  69. 2026-08-03 21:10 UTCVendor advisory
  70. 2026-08-03 10:36 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  71. 2026-08-02 11:54 UTCEG score recompute
  72. 2026-08-02 11:54 UTCVendor advisory
  73. 2026-08-02 02:27 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  74. 2026-08-01 04:16 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  75. 2026-07-30 16:28 UTCEPSS rescoreEPSS 0.3% · 23rd percentile

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

Frequently asked(5)

What is CVE-2026-41240?
CVE-2026-41240 is a medium-severity vulnerability; its CVE record was published on April 23, 2026. DOMPurify is a DOM-only cross-site scripting sanitizer for HTML, MathML, and SVG. Versions prior to 3.4.0 have an inconsistency between FORBIDTAGS and FORBIDATTR handling when function-based ADDTAGS is used. Commit c361baa added an early exit for FORBIDATTR at line 1214. The same fix was not…
When was the CVE record for CVE-2026-41240 published?
The CVE record for CVE-2026-41240 was published on April 23, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of April 29, 2026; the record at its source may have been updated since.
Is CVE-2026-41240 actively exploited?
CVE-2026-41240 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (33rd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-41240?
CVE-2026-41240 has a CVSS v3 base score of 6.1 (NVD).
How do I remediate CVE-2026-41240?
A fix for CVE-2026-41240 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-41240 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-41240

Explore →

Is Your Infrastructure Affected by CVE-2026-41240?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Book a Demo →Browse All CVEs