CVE-2026-44990

CRITICALPre-NVD 9.39.3—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.3 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.5%, top 58% 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 — Patch released this weekElevated
9.3EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 9.3Exploit: Elevated riskExposed: 0

A fix is available — apply it.

ApostropheCMS is an open-source Node.js content management system, and sanitize-html provides a simple HTML sanitizer with a clear API. Under the default configuration, versions of sanitize-html prior to 2.17.4 can turn attacker-controlled content inside a disallowed xmp element into live HTML or JavaScript. This is a sanitizer bypass in the default disallowedTagsMode: 'discard' path and can lead to stored XSS in applications that render sanitized output back to users. Version 2.17.4 patches the issue.

CVSS v3
9.3
EG Score
9.3(medium)
EG Risk
58(Track*)
EG Risk 58/100SSVC: 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
Severity93% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
1%
EPSS %ILE
42%
KEV
Not listed

Published

May 14, 2026

Last Modified

August 27, 2026

Advisory Details (10)

Auto-updated Aug 29, 2026
🔬 Proof of concept available. Patch available. Sources: redhat, github.
redhat Patch Available
https://access.redhat.com/errata/RHSA-2026:42796
redhat Patch Available
https://access.redhat.com/errata/RHSA-2026:42146
redhat Patch Available
https://access.redhat.com/errata/RHSA-2026:41066
redhat Patch Available
https://access.redhat.com/errata/RHSA-2026:41064
redhat Patch Available
https://access.redhat.com/errata/RHSA-2026:41055
redhat Patch Available
https://access.redhat.com/errata/RHSA-2026:41031
redhat Patch Available
https://access.redhat.com/errata/RHSA-2026:40262
redhat Patch Available
https://access.redhat.com/errata/RHSA-2026:36883
redhat Patch Available
https://access.redhat.com/errata/RHSA-2026:36882
github Patch Available🟡 PoC Available

Default XSS via `xmp` raw-text passthrough in `sanitize-html` · Advisory · apostrophecms/apostrophe · GitHub

https://github.com/apostrophecms/apostrophe/security/advisories/GHSA-rpr9-rxv7-x643

Vendor Advisories for CVE-2026-44990(20)

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

Patch Availability(24)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatrhacm2/console-rhel9:17873351052026-08-26redhat
redhatmulticluster-engine/console-mce-rhel9:17866688562026-08-25redhat
redhatmulticluster-engine/console-mce-rhel9:17869119772026-08-19redhat
redhatrhacm2/console-rhel9:17869083612026-08-19redhat
redhatsatellite/iop-host-inventory-frontend-rhel9:17859227642026-08-06redhat
redhatsatellite/iop-vulnerability-frontend-rhel9:17859373252026-08-06redhat
redhatsatellite/iop-host-inventory-frontend-rhel9:17859564972026-08-06redhat
redhatdevspaces/dashboard-rhel9:17847371502026-07-29redhat
redhatmulticluster-engine/console-mce-rhel9:17850786042026-07-29redhat
redhatrhacm2/console-rhel9:17850785812026-07-29redhat
redhatrhacm2/console-rhel9:17845788122026-07-28redhat
redhatmulticluster-engine/console-mce-rhel9:17843123842026-07-28redhat
redhatcontainer-native-virtualization/kubevirt-console-plugin-rhel9:17848443822026-07-27redhat
redhatcontainer-native-virtualization/kubevirt-console-plugin-rhel9:17846299642026-07-27redhat
redhatquay/quay-rhel8:17843539042026-07-21redhat
redhatquay/quay-rhel8:17843519662026-07-21redhat
redhatquay/quay-rhel8:17837518652026-07-20redhat
redhatquay/quay-rhel9:17839558462026-07-16redhat
redhatrhacm2/console-rhel9:17833509522026-07-16redhat
redhatmulticluster-engine/console-mce-rhel9:17833510022026-07-16redhat
redhatquay/quay-rhel8:17837504472026-07-16redhat
redhatquay/quay-rhel8:17841258382026-07-15redhat
redhatmulticluster-engine/console-mce-rhel9:17833481812026-07-08redhat
redhatrhacm2/console-rhel9:17834517292026-07-08redhat

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

(1 across 1 ecosystem)
npm(1)
PackageVulnerable rangeFixed inDependents
sanitize-html2.17.32.17.4—

Weakness Classification(1)

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

Additional Vendor Advisories

(6)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 25× in last 7d / 165× 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 238 total refreshes for this CVE.

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

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-44990?
CVE-2026-44990 is a critical vulnerability published on May 14, 2026. ApostropheCMS is an open-source Node.js content management system, and sanitize-html provides a simple HTML sanitizer with a clear API. Under the default configuration, versions of sanitize-html prior to 2.17.4 can turn attacker-controlled content inside a disallowed xmp element into live HTML or…
When was CVE-2026-44990 disclosed?
CVE-2026-44990 was first published in the National Vulnerability Database on May 14, 2026, with the most recent update on August 27, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-44990 actively exploited?
CVE-2026-44990 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 58.5% of all scored CVEs.
What is the CVSS score of CVE-2026-44990?
CVE-2026-44990 has a CVSS v3 base score of 9.3 (NVD).
How do I remediate CVE-2026-44990?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-44990, 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-44990

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