CVE-2021-46877

HIGHNVD 7.57.5—

7.5

jackson-databind 2.10.x through 2.12.x before 2.12.6 and 2.13.x before 2.13.1 allows attackers to cause a denial of service (2 GB transient heap usage per read) in uncommon situations involving JsonNode JDK serialization.

CVSS v3: 7.5
EG Score: 7.5(medium)
EPSS: 48.5%
KEV: Not listed

Published

March 18, 2023

Last Modified

February 26, 2025

References (4)

cve@mitrehttps://github.com/FasterXML/jackson-databind/issues/3328
cve@mitrehttps://groups.google.com/g/jackson-user/c/OsBsirPM_Vw
af854a3a-2127-422b-91ae-364da2661108https://github.com/FasterXML/jackson-databind/issues/3328
af854a3a-2127-422b-91ae-364da2661108https://groups.google.com/g/jackson-user/c/OsBsirPM_Vw

Vendor Advisories for CVE-2021-46877(1)

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

RHSA-2023:4627
Red Hat Product SecurityHigh
Red Hat Security Advisory: Migration Toolkit for Applications security and bug fix update

Patch Availability(15)

Vendor / Ecosystem	Fixed in / Patch	Released	Source
redhat	jackson-databind	2023-09-13	redhat
redhat	rh-sso7-keycloak-0:18.0.9-1.redhat_00001.1.el9sso	2023-08-31	redhat
redhat	rh-sso-7/sso76-openshift-rhel8:7.6-27	2023-08-31	redhat
redhat	rh-sso7-keycloak-0:18.0.9-1.redhat_00001.1.el8sso	2023-08-31	redhat
redhat	rh-sso7-keycloak-0:18.0.9-1.redhat_00001.1.el7sso	2023-08-31	redhat
redhat	mta/mta-windup-addon-rhel9:6.2.0-11	2023-08-14	redhat
redhat	eap7-wildfly-0:7.4.12-3.GA_redhat_00003.1.el8eap	2023-08-07	redhat
redhat	com.fasterxml.jackson.core/jackson-databind:2.12.7.redhat-00003	2023-08-07	redhat
redhat	eap7-wildfly-0:7.4.12-3.GA_redhat_00003.1.el7eap	2023-08-07	redhat
redhat	eap7-wildfly-0:7.4.12-3.GA_redhat_00003.1.el9eap	2023-08-07	redhat
redhat	jenkins-0:2.401.1.1686649641-3.el8	2023-06-15	redhat
redhat	mtr/mtr-web-container-rhel8:1.1-7	2023-05-31	redhat
redhat	jenkins-0:2.387.3.1684911776-3.el8	2023-05-24	redhat
redhat	patch	2023-05-18	redhat
redhat	yggdrasil-worker-forwarder-0:0.0.1-1.el8sat	2023-05-03	redhat

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)

Package	Vulnerable range	Fixed in	Dependents
com.fasterxml.jackson.core:jackson-databind	2.13.0	2.13.1	—

Weakness Classification(1)

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

CWE-770Allocation of Resources Without Limits or Throttling

Additional Vendor Advisories

(17)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 10× in last 7d / 18× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-02 20:11 UTCepss_batch
2026-06-02 20:11 UTCepss_batch
2026-06-01 13:50 UTCepss_batch
2026-06-01 13:50 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 00:15 UTCepss_batch
2026-05-31 00:15 UTCepss_batch
2026-05-29 13:42 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-26 13:43 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-25 05:01 UTCEG score recompute
2026-05-25 05:01 UTCVendor advisory

Frequently asked(5)

What is CVE-2021-46877?

CVE-2021-46877 is a high vulnerability published on March 18, 2023. jackson-databind 2.10.x through 2.12.x before 2.12.6 and 2.13.x before 2.13.1 allows attackers to cause a denial of service (2 GB transient heap usage per read) in uncommon situations involving JsonNode JDK serialization.

When was CVE-2021-46877 disclosed?

CVE-2021-46877 was first published in the National Vulnerability Database on March 18, 2023, with the most recent update on February 26, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2021-46877 actively exploited?

CVE-2021-46877 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 48.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2021-46877?

CVE-2021-46877 has a CVSS v3 base score of 7.5 (NVD).

How do I remediate CVE-2021-46877?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-46877, 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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CVE-2021-46877

Published

Last Modified

References (4)

Vendor Advisories for CVE-2021-46877(1)

Patch Availability(15)

Affected Packages

Weakness Classification(1)

Additional Vendor Advisories

Data Freshness Timeline

Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2021-46877?

Same vendor

Same CWE

CVE-2021-46877

📅 Published

🔄 Last Modified

🔗 References (4)

📣 Vendor Advisories for CVE-2021-46877(1)

Patch Availability(15)

Affected Packages

Weakness Classification(1)

Additional Vendor Advisories

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2021-46877?

🔗 Related CVEs(same vendor + same CWE)

Same vendor

Same CWE

Published

Last Modified

References (4)

Vendor Advisories for CVE-2021-46877(1)

Frequently asked(5)

Related CVEs(same vendor + same CWE)