CVE-2026-73569

HIGHPre-NVD 8.78.7—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.7 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.5% (41st 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 — 3 sources updated this week
8.7EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.5%CVSS: 8.7Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

fast-xml-parser allows users to process XML from JS object without C/C++ based libraries or callbacks. From 5.9.3 until 5.10.1, src/xmlparser/OrderedObjParser.js processes multiple DOCTYPE declarations within a single XML document and passes each declaration's entities through addInputEntities(). addInputEntities() resets maxTotalExpansions and maxExpandedLength every time it is called, allowing additional DOCTYPE declarations to repeatedly reset the configured entity-expansion limits during one parse operation. A crafted XML document can then cause excessive CPU use, event-loop blocking, memory exhaustion, and process termination. This issue is fixed in version 5.10.1.

CVSS v3
8.7
EG Score
8.7HIGHmedium confidence
EG Risk
44
EG Risk 44/100CISA 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
Severity87% × 45%
Exploitation1% × 40%
Automatability30% × 15%
CISA SSVC: Track at low or medium mission impact; Track or Attend at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.5%
EPSS %ILE
41st
KEV
Not listed

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

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (no KEV listing, exploit record or EPSS ≥ 50%) · Automatable unknown (not published for this CVE) · Technical impact partial (CVSS below 9.0). 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

July 21, 2026

Last Modified

September 18, 2026

Advisory Details (3)

Auto-updated Aug 13, 2026
Patch available. Sources: github_commit, github_release, github.
githubMentions a patch (unverified)

Repeated DOCTYPE declarations reset entity expansion limits · Advisory · NaturalIntelligence/fast-xml-parser · GitHub

https://github.com/NaturalIntelligence/fast-xml-parser/security/advisories/GHSA-8r6m-32jq-jx6q
github_release Patch Available

v5.10.1

Patch available: NaturalIntelligence/fast-xml-parser v5.10.1

https://github.com/NaturalIntelligence/fast-xml-parser/releases/tag/v5.10.1
github_commit Patch Available

commit 4e546e039876 (NaturalIntelligence/fast-xml-parser)

Patch available: NaturalIntelligence/fast-xml-parser v5.10.1 (contains commit 4e546e039876)

https://github.com/NaturalIntelligence/fast-xml-parser/commit/4e546e03987662de5495d050b5fba26bea65383f

Vendor Advisories for CVE-2026-73569(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 / EcosystemFix (by version range) / PatchReleasedSource
redhatmta/mta-ui-rhel9:17894467802026-09-16redhat
redhatansible-automation-platform/bootc-automation-portal-rhel9:17889435312026-09-09redhat
redhatodf4/rook-ceph-rhel9-operator:17881648572026-09-08redhat

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

(4 across 4 ecosystems)
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
node-webfont11.4.0+dfsg2+~cs35.7.26-10 ... 11.4.0+dfsg2+~cs35.7.26-9 (14 versions)
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
node-webfont11.4.0+dfsg2+~cs35.7.26-13 ... 11.4.0+dfsg2+~cs35.7.26-21 (8 versions)
  • every version on: no fix on record
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
node-webfont11.4.0+dfsg2+~cs35.7.26-13 ... 11.4.0+dfsg2+~cs35.7.26-21 (8 versions)
  • every version on: no fix on record
—
npm(1)
PackageVulnerable rangeFix by version rangeDependents
fast-xml-parser—
  • 5.9.3 up to 5.10.1: fixed in 5.10.1
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 8× in last 7d / 53× 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 108 total refreshes for this CVE.

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

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

Frequently asked(5)

What is CVE-2026-73569?
CVE-2026-73569 is a high vulnerability published on July 21, 2026. fast-xml-parser allows users to process XML from JS object without C/C++ based libraries or callbacks. From 5.9.3 until 5.10.1, src/xmlparser/OrderedObjParser.js processes multiple DOCTYPE declarations within a single XML document and passes each declaration's entities through addInputEntities().…
When was CVE-2026-73569 disclosed?
CVE-2026-73569 was first published on July 21, 2026, with the most recent update on September 18, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-73569 actively exploited?
CVE-2026-73569 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (41st percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-73569?
CVE-2026-73569 has a CVSS base score of 8.7 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-73569?
A fix for CVE-2026-73569 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-73569 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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