CVE-2026-59889

MEDIUMPre-NVD 6.56.5
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

This medium-severity CVE scores 6.5 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4% (31st percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from a secondary CVSS source
Sources: EPSS, a secondary CVSS source
6.5EG
EchelonGraph verdictMonitorRemediate within your standard update timelines (the SSVC decision on this page).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 6.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

jackson-databind contains the general-purpose data-binding functionality and tree-model for Jackson Data Processor. From 2.18.0 until 2.18.9, 2.21.5, 2.22.1, 3.1.5, and 3.2.1, UnwrappedPropertyHandler.processUnwrapped() replays buffered JSON for a @JsonUnwrapped property and calls prop.deserializeAndSet() without a prop.visibleInView(ctxt.getActiveView()) guard, allowing a property annotated with both @JsonView and @JsonUnwrapped to be written from attacker JSON under a less-privileged active view. This issue is fixed in versions 2.18.9, 2.21.5, 2.22.1, 3.1.5, and 3.2.1.

CVSS v3
6.5
EG Score
6.5MEDIUMmedium confidence
EG Risk
29
EG Risk 29/100

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 (value × EchelonGraph’s weight)
Severity65% × 45%
The EG Score, 6.5 of 10.
Exploitation0.4% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at every mission impact level.
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.4%
EPSS %ILE
31st
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at every mission impact level.

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

July 14, 2026

Last Modified

July 16, 2026

Advisory Details (4)

Auto-updated Jul 15, 2026
Patch available. Sources: github, github_commit, github_pr.
GitHub advisoryMentions a patch (unverified)

@JsonView bypassed for @JsonUnwrapped container properties on deserialization: a Setter/Field-backed property annotated @JsonView(PrivilegedView)+@JsonUnwrapped is populated from JSON under a less-privileged active view (mass-assignment / privilege escalation). Incomplete fix of #5971 (creator path) · Advisory · FasterXML/jackson-databind · GitHub

https://github.com/FasterXML/jackson-databind/security/advisories/GHSA-5gvw-p9qm-jgwh
GitHub pull request

Fix #6060 -- `@JsonView` skipped for Setter/Field properties with `@JsonUnwrapped` (for 2.18 and above) [CVE-2026-59889]

Fix merged in FasterXML/jackson-databind PR #6056 on 2026-06-27 — awaiting tagged release

https://github.com/FasterXML/jackson-databind/pull/6056
Web page

`@JsonView` by-passed for `@JsonUnwrapped` Field/Setter properties [CVE-2026-59889] · Issue #6060 · FasterXML/jackson-databind · GitHub

https://github.com/FasterXML/jackson-databind/issues/6060
GitHub commit

commit d627a8a86fcb (FasterXML/jackson-databind)

Fix landed in FasterXML/jackson-databind commit d627a8a86fcb — awaiting tagged release

https://github.com/FasterXML/jackson-databind/commit/d627a8a86fcb062429282f79f3f256f181ed2c7b

Vendor Advisories for CVE-2026-59889(7)

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

Patch Availability(4)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhateap8-xml-security-0:3.0.6-1.redhat_00001.1.el10eap2026-09-22redhat
redhateap8-xml-security-0:3.0.6-1.redhat_00001.1.el8eap2026-09-22redhat
redhateap8-xml-security-0:3.0.6-1.redhat_00001.1.el9eap2026-09-22redhat
redhateap7-wildfly-0:7.4.25-6.GA_redhat_00005.1.el9eap2026-09-15redhat

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

(2 across 1 ecosystem)
Maven(2)
PackageVulnerable rangeFix by version rangeDependents
com.fasterxml.jackson.core:jackson-databind2.22.0
  • 2.21.0 up to 2.21.5: fixed in 2.21.5
  • 2.18.0 up to 2.18.9: fixed in 2.18.9
  • 2.22.0 up to 2.22.1: fixed in 2.22.1
—
tools.jackson.core:jackson-databind3.2.0
  • 3.0.0 up to 3.1.5: fixed in 3.1.5
  • 3.2.0 up to 3.2.1: fixed in 3.2.1
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 11× in last 7d / 39× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 100 of 141 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 41 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  2. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  3. 2026-10-12 15:52 UTCEG score recompute
  4. 2026-10-11 19:36 UTCEG score recompute
  5. 2026-10-11 16:51 UTCEG score recompute
  6. 2026-10-11 14:13 UTCEG score recompute
  7. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  8. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  9. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  10. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  11. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  12. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  13. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  14. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  15. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  16. 2026-10-02 17:56 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  17. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  18. 2026-10-01 12:52 UTCEG score recompute
  19. 2026-10-01 12:52 UTCVendor advisory
  20. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  21. 2026-09-29 15:22 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  22. 2026-09-28 08:53 UTCEG score recompute
  23. 2026-09-28 08:53 UTCVendor advisory
  24. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  25. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.4% · 30th percentile
Show 75 more
  1. 2026-09-24 14:04 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  2. 2026-09-24 09:00 UTCEG score recompute
  3. 2026-09-24 09:00 UTCVendor advisory
  4. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.3% · 28th percentile
  5. 2026-09-23 03:28 UTCEG score recompute
  6. 2026-09-23 03:28 UTCVendor advisory
  7. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.3% · 28th percentile
  8. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.3% · 28th percentile
  9. 2026-09-18 04:50 UTCEG score recompute
  10. 2026-09-18 04:50 UTCVendor advisory
  11. 2026-09-17 19:31 UTCEPSS rescoreEPSS 0.3% · 28th percentile
  12. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.3% · 28th percentile
  13. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  14. 2026-09-15 03:11 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  15. 2026-09-14 06:26 UTCEG score recompute
  16. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  17. 2026-09-13 07:39 UTCEG score recompute
  18. 2026-09-11 21:54 UTCEG score recompute
  19. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  20. 2026-09-10 09:35 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  21. 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  22. 2026-09-08 01:08 UTCEG score recompute
  23. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  24. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  25. 2026-09-05 20:57 UTCEG score recompute
  26. 2026-09-04 05:07 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  27. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  28. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  29. 2026-09-01 04:40 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  30. 2026-08-31 03:03 UTCEG score recompute
  31. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  32. 2026-08-30 04:11 UTCEG score recompute
  33. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  34. 2026-08-28 21:42 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  35. 2026-08-27 23:00 UTCEG score recompute
  36. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  37. 2026-08-27 00:11 UTCEG score recompute
  38. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  39. 2026-08-26 01:24 UTCEG score recompute
  40. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  41. 2026-08-25 02:36 UTCEG score recompute
  42. 2026-08-23 04:33 UTCEG score recompute
  43. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  44. 2026-08-22 05:45 UTCEG score recompute
  45. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  46. 2026-08-21 06:57 UTCEG score recompute
  47. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  48. 2026-08-20 08:02 UTCEG score recompute
  49. 2026-08-19 17:04 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  50. 2026-08-19 09:14 UTCEG score recompute
  51. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  52. 2026-08-18 10:18 UTCEG score recompute
  53. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  54. 2026-08-17 09:40 UTCEG score recompute
  55. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  56. 2026-08-16 10:53 UTCEG score recompute
  57. 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  58. 2026-08-15 12:06 UTCEG score recompute
  59. 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  60. 2026-08-14 13:19 UTCEG score recompute
  61. 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  62. 2026-08-12 15:43 UTCEG score recompute
  63. 2026-08-12 13:51 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  64. 2026-08-11 16:55 UTCEG score recompute
  65. 2026-08-11 00:00 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  66. 2026-08-09 19:20 UTCEG score recompute
  67. 2026-08-09 13:46 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  68. 2026-08-08 20:33 UTCEG score recompute
  69. 2026-08-08 16:37 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  70. 2026-08-07 21:46 UTCEG score recompute
  71. 2026-08-06 22:58 UTCEG score recompute
  72. 2026-08-06 13:47 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  73. 2026-08-05 23:44 UTCEG score recompute
  74. 2026-08-05 19:17 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  75. 2026-08-05 00:57 UTCEG score recompute

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

Frequently asked(5)

What is CVE-2026-59889?
CVE-2026-59889 is a medium-severity vulnerability; its CVE record was published on July 14, 2026. jackson-databind contains the general-purpose data-binding functionality and tree-model for Jackson Data Processor. From 2.18.0 until 2.18.9, 2.21.5, 2.22.1, 3.1.5, and 3.2.1, UnwrappedPropertyHandler.processUnwrapped() replays buffered JSON for a @JsonUnwrapped property and calls…
When was the CVE record for CVE-2026-59889 published?
The CVE record for CVE-2026-59889 was published on July 14, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of July 16, 2026; the record at its source may have been updated since.
Is CVE-2026-59889 actively exploited?
CVE-2026-59889 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (31st percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-59889?
CVE-2026-59889 has a CVSS base score of 6.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-59889?
A fix for CVE-2026-59889 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-59889 are linked in the Vendor Advisories panel on this page.

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