CVE-2026-54515

MEDIUMPre-NVD 5.35.3—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 5.3 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.3%, top 73% 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
5.3
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 5.3Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

jackson-databind contains the general-purpose data-binding functionality and tree-model for Jackson Data Processor. From 2.8.0 until 2.18.9, 2.21.5, and 3.1.4, in BeanDeserializerBase.createContextual(), per-property @JsonIgnoreProperties exclusions are applied by _handleByNameInclusion(), producing a contextual deserializer whose BeanPropertyMap has the ignored properties removed. The subsequent per-property case-insensitivity block (triggered by @JsonFormat(ACCEPT_CASE_INSENSITIVE_PROPERTIES)) rebuilds from this._beanProperties (the original, unfiltered map) instead of contextual._beanProperties, then overwrites the filtered map — restoring every property _handleByNameInclusion had just removed. The ignored property becomes writable again. This vulnerability is fixed in 2.18.9, 2.21.5, and 3.1.4.

CVSS v3
5.3
EG Score
5.3(medium)
EPSS
26.5%
KEV
Not listed

Published

June 23, 2026

Last Modified

June 29, 2026

Advisory Details (4)

Auto-updated Jun 25, 2026
Patch available. Sources: github_commit, github.
github Patch Available

Case-insensitive deserialization bypasses per-property @JsonIgnoreProperties in jackson-databind · Advisory · FasterXML/jackson-databind · GitHub

Affected: 2.18.9, 2.21.5, 2.22.1 and 3.1.4.

https://github.com/FasterXML/jackson-databind/security/advisories/GHSA-5jmj-h7xm-6q6v
generic

Fix #5962: Case-insensitive deserialization may use wrong `@JsonIgnoreProperties` by cowtowncoder · Pull Request #5964 · FasterXML/jackson-databind · GitHub

https://github.com/FasterXML/jackson-databind/issues/5964
generic

Case-insensitive deserialization may use wrong `@JsonIgnoreProperties` [CVE-2026-54515] · Issue #5962 · FasterXML/jackson-databind · GitHub

https://github.com/FasterXML/jackson-databind/issues/5962
github_commit

commit 0e1b0b211f7a (FasterXML/jackson-databind)

Fix landed in FasterXML/jackson-databind commit 0e1b0b211f7a — awaiting tagged release

https://github.com/FasterXML/jackson-databind/commit/0e1b0b211f7a53baa62ba2f4c9bd006c7bf4d5fa

Vendor Advisories for CVE-2026-54515(1)

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

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 17× in last 7d / 32× 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. 2026-07-07 01:49 UTCEG score recompute
  2. 2026-07-06 16:27 UTCEPSS rescore
  3. 2026-07-06 16:27 UTCEPSS rescore
  4. 2026-07-06 02:23 UTCEPSS rescore
  5. 2026-07-06 02:23 UTCEPSS rescore
  6. 2026-07-06 01:32 UTCEG score recompute
  7. 2026-07-05 02:31 UTCEPSS rescore
  8. 2026-07-05 02:30 UTCEPSS rescore
  9. 2026-07-05 01:16 UTCEG score recompute
  10. 2026-07-04 06:31 UTCEPSS rescore
  11. 2026-07-04 06:31 UTCEPSS rescore
  12. 2026-07-04 00:46 UTCEG score recompute
  13. 2026-07-03 00:18 UTCEG score recompute
  14. 2026-07-02 00:01 UTCEG score recompute
  15. 2026-07-01 15:07 UTCEPSS rescore
  16. 2026-06-30 23:45 UTCEG score recompute
  17. 2026-06-30 23:22 UTCEPSS rescore
  18. 2026-06-29 23:08 UTCEG score recompute
  19. 2026-06-29 14:06 UTCEPSS rescore
  20. 2026-06-29 14:06 UTCEPSS rescore
  21. 2026-06-28 22:53 UTCEG score recompute
  22. 2026-06-28 14:07 UTCEPSS rescore
  23. 2026-06-28 04:56 UTCEPSS rescore
  24. 2026-06-28 04:56 UTCEPSS rescore
  25. 2026-06-27 22:37 UTCEG score recompute
Show 7 more
  1. 2026-06-27 03:08 UTCEPSS rescore
  2. 2026-06-26 22:21 UTCEG score recompute
  3. 2026-06-25 22:04 UTCEG score recompute
  4. 2026-06-25 13:49 UTCEPSS rescore
  5. 2026-06-24 21:47 UTCEG score recompute
  6. 2026-06-24 14:05 UTCEPSS rescore
  7. 2026-06-23 21:30 UTCEG score recompute

Frequently asked(5)

What is CVE-2026-54515?
CVE-2026-54515 is a medium vulnerability published on June 23, 2026. jackson-databind contains the general-purpose data-binding functionality and tree-model for Jackson Data Processor. From 2.8.0 until 2.18.9, 2.21.5, and 3.1.4, in BeanDeserializerBase.createContextual(), per-property @JsonIgnoreProperties exclusions are applied by handleByNameInclusion(), producing…
When was CVE-2026-54515 disclosed?
CVE-2026-54515 was first published in the National Vulnerability Database on June 23, 2026, with the most recent update on June 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-54515 actively exploited?
CVE-2026-54515 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 26.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-54515?
CVE-2026-54515 has a CVSS v3 base score of 5.3 (NVD).
How do I remediate CVE-2026-54515?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-54515, 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.

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