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
Trending — 4 sources updated this week
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 9.8Exploit: None knownExposed: 0

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
9.8(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
Severity98% × 45%
Exploitation1% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
42%
KEV
Not listed

Published

June 12, 2026

Last Modified

August 7, 2026

Advisory Details (7)

Auto-updated Aug 21, 2026
Patch available. Sources: redhat.
redhat Patch Available
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-49875.json
redhat Patch Available

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
redhat Patch Available

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
redhat Patch Available
https://access.redhat.com/errata/RHSA-2026:37390
redhat Patch Available
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
https://lists.apache.org/thread/3kb9w5bg90xcp06fccoz9k3gpsvyy79o

Vendor Advisories for CVE-2026-49875(3)

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 / EcosystemFixed in / 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.

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 40× in last 7d / 277× 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 517 total refreshes for this CVE.

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

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 in the National Vulnerability Database 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 1% probability of exploitation in the next 30 days, which ranks it in the top 57.8% of all 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?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-49875, 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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