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: 0.4%, top 69% 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 — 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%CVSS: 8.7Exploit: None knownExposed: 0

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
8.7(medium)
EG Risk
44(Track)
EG Risk 44/100SSVC: 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
Severity87% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
31%
KEV
Not listed

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.
github Patch Available

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(3)

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

Patch Availability(2)

Vendor / EcosystemFixed in / PatchReleasedSource
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 rangeFixed inDependents
node-webfont11.4.0+dfsg2+~cs35.7.26-10 ... 11.4.0+dfsg2+~cs35.7.26-9 (14 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
node-webfont11.4.0+dfsg2+~cs35.7.26-13 ... 11.4.0+dfsg2+~cs35.7.26-21 (8 versions)——
Debian:14(1)
PackageVulnerable rangeFixed inDependents
node-webfont11.4.0+dfsg2+~cs35.7.26-13 ... 11.4.0+dfsg2+~cs35.7.26-21 (8 versions)——
npm(1)
PackageVulnerable rangeFixed inDependents
fast-xml-parser—5.10.1—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 19× in last 7d / 60× 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.

  1. 2026-09-18 20:35 UTCEG score recompute
  2. 2026-09-18 20:35 UTCVendor advisory
  3. 2026-09-18 19:28 UTCEPSS rescore
  4. 2026-09-18 03:12 UTCEG score recompute
  5. 2026-09-18 03:12 UTCVendor advisory
  6. 2026-09-17 02:13 UTCEG score recompute
  7. 2026-09-17 02:13 UTCVendor advisory
  8. 2026-09-16 14:08 UTCEPSS rescore
  9. 2026-09-16 07:08 UTCEG score recompute
  10. 2026-09-16 07:08 UTCVendor advisory
  11. 2026-09-16 05:15 UTCEPSS rescore
  12. 2026-09-15 03:12 UTCEPSS rescore
  13. 2026-09-14 11:29 UTCVendor advisory
  14. 2026-09-13 22:27 UTCEG score recompute
  15. 2026-09-13 22:27 UTCVendor advisory
  16. 2026-09-13 08:59 UTCVendor advisory
  17. 2026-09-12 19:57 UTCEG score recompute
  18. 2026-09-12 19:57 UTCVendor advisory
  19. 2026-09-12 15:02 UTCEPSS rescore
  20. 2026-09-12 06:55 UTCVendor advisory
  21. 2026-09-11 17:53 UTCEG score recompute
  22. 2026-09-11 17:53 UTCVendor advisory
  23. 2026-09-11 14:53 UTCEPSS rescore
  24. 2026-09-10 22:06 UTCEG score recompute
  25. 2026-09-10 22:06 UTCVendor advisory
Show 53 more
  1. 2026-09-10 09:35 UTCEPSS rescore
  2. 2026-09-09 09:20 UTCEG score recompute
  3. 2026-09-09 09:20 UTCVendor advisory
  4. 2026-09-08 22:01 UTCEPSS rescore
  5. 2026-09-07 21:44 UTCEG score recompute
  6. 2026-09-06 13:48 UTCEPSS rescore
  7. 2026-09-05 20:20 UTCEG score recompute
  8. 2026-09-05 07:17 UTCEG score recompute
  9. 2026-09-04 14:00 UTCEG score recompute
  10. 2026-09-04 05:07 UTCEPSS rescore
  11. 2026-09-02 14:12 UTCEPSS rescore
  12. 2026-09-01 23:43 UTCEG score recompute
  13. 2026-09-01 13:54 UTCEPSS rescore
  14. 2026-09-01 04:40 UTCEPSS rescore
  15. 2026-09-01 04:40 UTCEPSS rescore
  16. 2026-08-31 03:15 UTCEG score recompute
  17. 2026-08-30 19:18 UTCEPSS rescore
  18. 2026-08-30 19:17 UTCEPSS rescore
  19. 2026-08-30 14:12 UTCEG score recompute
  20. 2026-08-30 01:22 UTCEPSS rescore
  21. 2026-08-30 00:59 UTCEG score recompute
  22. 2026-08-28 21:42 UTCEPSS rescore
  23. 2026-08-28 02:44 UTCEG score recompute
  24. 2026-08-27 14:25 UTCEPSS rescore
  25. 2026-08-27 00:34 UTCEG score recompute
  26. 2026-08-26 14:47 UTCEPSS rescore
  27. 2026-08-25 22:20 UTCEG score recompute
  28. 2026-08-25 13:49 UTCEPSS rescore
  29. 2026-08-24 19:18 UTCEG score recompute
  30. 2026-08-23 04:03 UTCEG score recompute
  31. 2026-08-23 00:19 UTCEPSS rescore
  32. 2026-08-22 01:57 UTCEG score recompute
  33. 2026-08-21 23:49 UTCEPSS rescore
  34. 2026-08-20 23:53 UTCEG score recompute
  35. 2026-08-20 22:56 UTCEPSS rescore
  36. 2026-08-19 21:46 UTCEG score recompute
  37. 2026-08-19 17:04 UTCEPSS rescore
  38. 2026-08-18 19:12 UTCEG score recompute
  39. 2026-08-18 13:49 UTCEPSS rescore
  40. 2026-08-18 13:49 UTCEPSS rescore
  41. 2026-08-17 14:34 UTCEG score recompute
  42. 2026-08-17 13:47 UTCEPSS rescore
  43. 2026-08-17 01:32 UTCEG score recompute
  44. 2026-08-16 14:56 UTCEPSS rescore
  45. 2026-08-16 14:56 UTCEPSS rescore
  46. 2026-08-16 12:29 UTCEG score recompute
  47. 2026-08-16 02:15 UTCEPSS rescore
  48. 2026-08-15 10:26 UTCEG score recompute
  49. 2026-08-15 01:31 UTCEPSS rescore
  50. 2026-08-13 18:19 UTCEG score recompute
  51. 2026-08-13 18:12 UTCEG score recompute▲ 8.70
  52. 2026-08-13 18:11 UTCMITRE cvelistV5CVSS v3 → 8.7 · CVSS v4 → 8.7
  53. 2026-08-13 17:52 UTCEG score recompute

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 in the National Vulnerability Database 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% probability of exploitation in the next 30 days, which ranks it in the top 69.0% of all scored CVEs.
What is the CVSS score of CVE-2026-73569?
CVE-2026-73569 has a CVSS v3 base score of 8.7 (NVD).
How do I remediate CVE-2026-73569?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-73569, 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

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