CVE-2026-49875

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-06-12. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.8%CVSS: 9.8Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

Apache CXF's EndpointReferenceUtils and W3CMultiSchemaFactory classes construct a SAXParserFactory without the necessary JAXP hardening configurations, enabling out-of-band (OOB) external entity resolution. Users are recommended to upgrade to versions 4.2.2 or 4.1.7 or 3.6.12, which fix this issue.

CVSS v3
9.8
EG Score
9.8CRITICALmedium confidence
EG Risk
44
EG Risk 44/100

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
Severity98% × 45%
Exploitation1% × 40%
Automatability0% × 15%
EPSS PROB
0.8%
EPSS %ILE
55th
KEV
Not listed

Published

June 12, 2026

Last Modified

August 7, 2026

Advisory Details (7)

Auto-updated Oct 9, 2026
Patch available. Sources: redhat.
redhat
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-49875.json
redhatMentions a patch (unverified)

2488309 – (CVE-2026-49875) CVE-2026-49875 cxf: org.apache.cxf/cxf-core: Apache CXF: Information disclosure via out-of-band external entity resolution due to missing JAXP hardening

https://bugzilla.redhat.com/show_bug.cgi?id=2488309
redhatMentions a patch (unverified)

CVE-2026-49875 - Red Hat Customer Portal

Affected: Red Hat Enterprise Linux 8 or OpenShift Container Platform 4, is affected by this vulnerability and a fix may be released to a

https://access.redhat.com/security/cve/CVE-2026-49875
redhatMentions a patch (unverified)
https://access.redhat.com/errata/RHSA-2026:37390
redhatMentions a patch (unverified)
https://access.redhat.com/errata/RHSA-2026:36839
generic

oss-security - CVE-2026-49875: Apache CXF: XML External Entity (XXE) Injection in W3CMultiSchemaFactory and EndpointReferenceUtils

http://www.openwall.com/lists/oss-security/2026/06/11/2
generic

Pony Mail

https://lists.apache.org/thread/3kb9w5bg90xcp06fccoz9k3gpsvyy79o

Vendor Advisories for CVE-2026-49875(7)

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

Patch Availability(1)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatcxf-core2026-07-09redhat

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)
Maven(1)
PackageVulnerable rangeFix by version rangeDependents
org.apache.cxf:cxf-core3.0.0 ... 4.1.6 (122 versions)
  • 4.2.0 up to 4.2.2: fixed in 4.2.2
  • every version up to 4.1.7: fixed in 4.1.7
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 7× in last 7d / 27× 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 560 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 17:12 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 23:22 UTCEPSS rescore
  8. 2026-10-03 18:21 UTCOSV refresh
  9. 2026-10-03 14:25 UTCEPSS rescore
  10. 2026-10-01 19:50 UTCEPSS rescore
  11. 2026-09-30 15:03 UTCEPSS rescore
  12. 2026-09-28 13:51 UTCEPSS rescore
  13. 2026-09-27 13:48 UTCEPSS rescore
  14. 2026-09-26 15:59 UTCEPSS rescore
  15. 2026-09-26 00:27 UTCEPSS rescore
  16. 2026-09-23 17:53 UTCEPSS rescore
  17. 2026-09-20 20:16 UTCEPSS rescore
  18. 2026-09-18 19:28 UTCEPSS rescore
  19. 2026-09-16 14:08 UTCEPSS rescore
  20. 2026-09-16 05:15 UTCEPSS rescore
  21. 2026-09-14 08:30 UTCVendor advisory
  22. 2026-09-14 08:30 UTCGHSA enrichment
  23. 2026-09-14 04:04 UTCEG score recompute
  24. 2026-09-14 04:04 UTCVendor advisory
  25. 2026-09-14 04:04 UTCGHSA enrichment
Show 75 more
  1. 2026-09-13 16:47 UTCEPSS rescore
  2. 2026-09-11 14:53 UTCEPSS rescore
  3. 2026-09-10 09:35 UTCEPSS rescore
  4. 2026-09-08 22:01 UTCEPSS rescore
  5. 2026-09-07 16:01 UTCEPSS rescore
  6. 2026-09-06 13:47 UTCEPSS rescore
  7. 2026-09-04 05:06 UTCEPSS rescore
  8. 2026-09-02 14:12 UTCEPSS rescore
  9. 2026-09-01 13:54 UTCEPSS rescore
  10. 2026-09-01 04:40 UTCEPSS rescore
  11. 2026-08-30 23:48 UTCEG score recompute
  12. 2026-08-30 23:48 UTCVendor advisory
  13. 2026-08-30 23:48 UTCGHSA enrichment
  14. 2026-08-30 19:17 UTCEPSS rescore
  15. 2026-08-30 01:22 UTCEPSS rescore
  16. 2026-08-28 21:41 UTCEPSS rescore
  17. 2026-08-27 14:25 UTCEPSS rescore
  18. 2026-08-26 14:46 UTCEPSS rescore
  19. 2026-08-25 13:49 UTCEPSS rescore
  20. 2026-08-25 04:15 UTCVendor advisory
  21. 2026-08-25 04:15 UTCGHSA enrichment
  22. 2026-08-24 23:51 UTCEG score recompute
  23. 2026-08-24 23:51 UTCVendor advisory
  24. 2026-08-24 23:51 UTCGHSA enrichment
  25. 2026-08-23 23:53 UTCVendor advisory
  26. 2026-08-23 23:53 UTCGHSA enrichment
  27. 2026-08-23 19:29 UTCVendor advisory
  28. 2026-08-23 19:29 UTCGHSA enrichment
  29. 2026-08-23 15:05 UTCVendor advisory
  30. 2026-08-23 15:05 UTCGHSA enrichment
  31. 2026-08-23 10:38 UTCEG score recompute
  32. 2026-08-23 10:38 UTCVendor advisory
  33. 2026-08-23 10:38 UTCGHSA enrichment
  34. 2026-08-23 00:19 UTCEPSS rescore
  35. 2026-08-21 23:49 UTCEPSS rescore
  36. 2026-08-21 22:43 UTCVendor advisory
  37. 2026-08-21 22:43 UTCGHSA enrichment
  38. 2026-08-21 17:53 UTCVendor advisory
  39. 2026-08-21 17:53 UTCGHSA enrichment
  40. 2026-08-21 12:00 UTCVendor advisory
  41. 2026-08-21 12:00 UTCGHSA enrichment
  42. 2026-08-21 06:35 UTCVendor advisory
  43. 2026-08-21 06:35 UTCGHSA enrichment
  44. 2026-08-21 02:08 UTCEG score recompute
  45. 2026-08-21 02:08 UTCVendor advisory
  46. 2026-08-21 02:08 UTCGHSA enrichment
  47. 2026-08-20 22:55 UTCEPSS rescore
  48. 2026-08-20 21:27 UTCVendor advisory
  49. 2026-08-20 21:27 UTCGHSA enrichment
  50. 2026-08-20 17:03 UTCVendor advisory
  51. 2026-08-20 17:03 UTCGHSA enrichment
  52. 2026-08-20 08:48 UTCEG score recompute
  53. 2026-08-20 08:48 UTCVendor advisory
  54. 2026-08-20 08:48 UTCGHSA enrichment
  55. 2026-08-19 17:04 UTCEPSS rescore
  56. 2026-08-19 13:46 UTCEG score recompute
  57. 2026-08-19 13:46 UTCVendor advisory
  58. 2026-08-19 13:46 UTCGHSA enrichment
  59. 2026-08-18 13:48 UTCEPSS rescore
  60. 2026-08-17 13:47 UTCEPSS rescore
  61. 2026-08-17 12:30 UTCVendor advisory
  62. 2026-08-17 12:30 UTCGHSA enrichment
  63. 2026-08-17 07:42 UTCVendor advisory
  64. 2026-08-17 07:42 UTCGHSA enrichment
  65. 2026-08-17 03:19 UTCVendor advisory
  66. 2026-08-17 03:19 UTCGHSA enrichment
  67. 2026-08-16 22:55 UTCEG score recompute
  68. 2026-08-16 22:55 UTCVendor advisory
  69. 2026-08-16 22:55 UTCGHSA enrichment
  70. 2026-08-16 14:56 UTCEPSS rescore
  71. 2026-08-16 13:01 UTCVendor advisory
  72. 2026-08-16 13:01 UTCGHSA enrichment
  73. 2026-08-16 08:37 UTCVendor advisory
  74. 2026-08-16 08:37 UTCGHSA enrichment
  75. 2026-08-16 08:37 UTCGHSA enrichment

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Frequently asked(5)

What is CVE-2026-49875?
CVE-2026-49875 is a critical vulnerability published on June 12, 2026. Apache CXF's EndpointReferenceUtils and W3CMultiSchemaFactory classes construct a SAXParserFactory without the necessary JAXP hardening configurations, enabling out-of-band (OOB) external entity resolution. Users are recommended to upgrade to versions 4.2.2 or 4.1.7 or 3.6.12, which fix this issue.
When was CVE-2026-49875 disclosed?
CVE-2026-49875 was first published on June 12, 2026, with the most recent update on August 7, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-49875 actively exploited?
CVE-2026-49875 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.8% probability of exploitation in the next 30 days (55th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-49875?
CVE-2026-49875 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-49875?
A fix for CVE-2026-49875 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-49875 are linked in the Vendor Advisories panel on this page.

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