CVE-2026-54518

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% (27th 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 at low or medium mission impact and sooner than that at high (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 2.21.0 until 2.21.4 and 3.1.4, UnwrappedPropertyHandler.processUnwrappedCreatorProperties() replays buffered JSON into creator parameters but never consults prop.visibleInView(activeView). The normal property-based creator path gates creator properties on the active view, but this unwrapped-creator replay path bypasses that check, so a constructor parameter annotated with both @JsonView(AdminView.class) and @JsonUnwrapped is populated from attacker JSON even when a more restrictive view is active. This vulnerability is fixed in 2.21.4 and 3.1.4.

CVSS v3
6.5
EG Score
6.5MEDIUMmedium 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 (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.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable yes (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 at low or medium mission impact and sooner than that at high.
EPSS PROB
0.4%
EPSS %ILE
27th
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; 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 (CISA Vulnrichment) · Automatable yes (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)14 days if the affected system is publicly exposed; 60 days if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable yes (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

June 23, 2026

Last Modified

June 27, 2026

Advisory Details (5)

Auto-updated Jun 24, 2026
Patch available. Sources: github, github_commit, github_pr.
GitHub advisoryMentions a patch (unverified)

@JsonView bypass for unwrapped creator parameters in jackson-databind · Advisory · FasterXML/jackson-databind · GitHub

https://github.com/FasterXML/jackson-databind/security/advisories/GHSA-rcqc-6cw3-h962
GitHub pull request

Backport #5971: `@JsonView` by-passed for unwrapped creator parameters

Fix merged in FasterXML/jackson-databind PR #5973 on 2026-05-07 — awaiting tagged release

https://github.com/FasterXML/jackson-databind/pull/5973
GitHub pull request

`@JsonView` by-passed for unwrapped creator parameters [CVE-2026-54518]

Fix merged in FasterXML/jackson-databind PR #5971 on 2026-05-07 — awaiting tagged release

https://github.com/FasterXML/jackson-databind/pull/5971
GitHub commit

commit d633bc038f20 (FasterXML/jackson-databind)

Fix landed in FasterXML/jackson-databind commit d633bc038f20 — awaiting tagged release

https://github.com/FasterXML/jackson-databind/commit/d633bc038f200c1397c07f1a2b46f58e72c91eea
GitHub commit

commit 721fa07ebbd4 (FasterXML/jackson-databind)

Fix landed in FasterXML/jackson-databind commit 721fa07ebbd4 — awaiting tagged release

https://github.com/FasterXML/jackson-databind/commit/721fa07ebbd4aab4a659a1a68940878315c3e341

Vendor Advisories for CVE-2026-54518(3)

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

Affected Packages

(4 across 3 ecosystems)
Maven(2)
PackageVulnerable rangeFix by version rangeDependents
com.fasterxml.jackson.core:jackson-databind2.21.0, 2.21.1, 2.21.2, 2.21.3
  • 2.21.0 up to 2.21.4: fixed in 2.21.4
—
tools.jackson.core:jackson-databind3.0.0 ... 3.1.3 (10 versions)
  • 3.0.0 up to 3.1.4: fixed in 3.1.4
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
jackson-databind2.14.0+ds-1, 2.14.0+ds-1+deb13u1, 2.14.0+ds-2
  • every version on: no fix on record
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
jackson-databind2.14.0+ds-1, 2.14.0+ds-2
  • every version on: no fix on record
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 11× in last 7d / 32× 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 146 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 46 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% · 27th percentile
  2. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  3. 2026-10-12 15:56 UTCEG score recompute
  4. 2026-10-11 19:39 UTCEG score recompute
  5. 2026-10-11 16:54 UTCEG score recompute
  6. 2026-10-11 14:18 UTCEG score recompute
  7. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  8. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  9. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  10. 2026-10-08 17:12 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  11. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  12. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  13. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  14. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  15. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  16. 2026-10-02 17:56 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  17. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  18. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  19. 2026-09-29 15:22 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  20. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  21. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  22. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  23. 2026-09-24 14:04 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  24. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  25. 2026-09-23 11:58 UTCEG score recompute
Show 75 more
  1. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  2. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  3. 2026-09-18 10:23 UTCEG score recompute
  4. 2026-09-17 19:31 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  5. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  6. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  7. 2026-09-15 03:11 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  8. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  9. 2026-09-13 12:21 UTCEG score recompute
  10. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  11. 2026-09-10 09:35 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  12. 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  13. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  14. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  15. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  16. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  17. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  18. 2026-09-01 04:40 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  19. 2026-08-30 20:25 UTCEG score recompute
  20. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  21. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  22. 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  23. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  24. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  25. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  26. 2026-08-24 22:05 UTCEG score recompute
  27. 2026-08-23 15:59 UTCEG score recompute
  28. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  29. 2026-08-22 13:44 UTCEG score recompute
  30. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  31. 2026-08-21 10:00 UTCEG score recompute
  32. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  33. 2026-08-20 07:45 UTCEG score recompute
  34. 2026-08-19 17:04 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  35. 2026-08-19 04:48 UTCEG score recompute
  36. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  37. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  38. 2026-08-16 18:32 UTCEG score recompute
  39. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  40. 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  41. 2026-08-15 15:08 UTCEG score recompute
  42. 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  43. 2026-08-14 12:53 UTCEG score recompute
  44. 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  45. 2026-08-13 10:38 UTCEG score recompute
  46. 2026-08-12 13:51 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  47. 2026-08-12 08:23 UTCEG score recompute
  48. 2026-08-11 06:07 UTCEG score recompute
  49. 2026-08-11 00:00 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  50. 2026-08-10 03:52 UTCEG score recompute
  51. 2026-08-09 13:46 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  52. 2026-08-09 01:38 UTCEG score recompute
  53. 2026-08-08 16:37 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  54. 2026-08-07 23:23 UTCEG score recompute
  55. 2026-08-06 21:08 UTCEG score recompute
  56. 2026-08-06 13:47 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  57. 2026-08-05 19:17 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  58. 2026-08-04 16:37 UTCEG score recompute
  59. 2026-08-04 15:10 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  60. 2026-08-04 10:39 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  61. 2026-08-03 14:15 UTCEG score recompute
  62. 2026-08-03 10:36 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  63. 2026-08-02 10:16 UTCEG score recompute
  64. 2026-08-02 02:27 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  65. 2026-08-01 08:00 UTCEG score recompute
  66. 2026-08-01 04:16 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  67. 2026-07-31 05:45 UTCEG score recompute
  68. 2026-07-30 16:28 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  69. 2026-07-30 03:30 UTCEG score recompute
  70. 2026-07-30 01:30 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  71. 2026-07-29 01:15 UTCEG score recompute
  72. 2026-07-28 15:37 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  73. 2026-07-27 18:06 UTCEG score recompute
  74. 2026-07-26 15:51 UTCEG score recompute
  75. 2026-07-26 14:54 UTCEPSS rescoreEPSS 0.3% · 18th percentile

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2026-54518?
CVE-2026-54518 is a medium-severity vulnerability; its CVE record was published on June 23, 2026. jackson-databind contains the general-purpose data-binding functionality and tree-model for Jackson Data Processor. From 2.21.0 until 2.21.4 and 3.1.4, UnwrappedPropertyHandler.processUnwrappedCreatorProperties() replays buffered JSON into creator parameters but never consults…
When was the CVE record for CVE-2026-54518 published?
The CVE record for CVE-2026-54518 was published on June 23, 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 June 27, 2026; the record at its source may have been updated since.
Is CVE-2026-54518 actively exploited?
CVE-2026-54518 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (27th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-54518?
CVE-2026-54518 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-2026-54518?
A fix for CVE-2026-54518 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-54518 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-54518

Explore →

Is Your Infrastructure Affected by CVE-2026-54518?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Book a Demo →Browse All CVEs