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Vulnerability details: VCID-2cup-9gdn-yyhk
Vulnerability ID VCID-2cup-9gdn-yyhk
Aliases CVE-2021-46877
GHSA-3x8x-79m2-3w2w
Summary jackson-databind possible Denial of Service if using JDK serialization to serialize JsonNode 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.
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (4)
CWE-770 Allocation of Resources Without Limits or Throttling
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
CWE-400 Uncontrolled Resource Consumption
System Score Found at
cvssv3 7.5 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-46877.json
epss 0.00252 https://api.first.org/data/v1/epss?cve=CVE-2021-46877
epss 0.00252 https://api.first.org/data/v1/epss?cve=CVE-2021-46877
epss 0.00252 https://api.first.org/data/v1/epss?cve=CVE-2021-46877
epss 0.00293 https://api.first.org/data/v1/epss?cve=CVE-2021-46877
epss 0.00293 https://api.first.org/data/v1/epss?cve=CVE-2021-46877
epss 0.00293 https://api.first.org/data/v1/epss?cve=CVE-2021-46877
epss 0.00293 https://api.first.org/data/v1/epss?cve=CVE-2021-46877
epss 0.00293 https://api.first.org/data/v1/epss?cve=CVE-2021-46877
epss 0.00293 https://api.first.org/data/v1/epss?cve=CVE-2021-46877
cvssv3.1 6.2 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv3.1_qr HIGH https://github.com/advisories/GHSA-3x8x-79m2-3w2w
cvssv3.1 7.5 https://github.com/FasterXML/jackson-databind
generic_textual HIGH https://github.com/FasterXML/jackson-databind
cvssv3.1 7.5 https://github.com/FasterXML/jackson-databind/commit/3ccde7d938fea547e598fdefe9a82cff37fed5cb
generic_textual HIGH https://github.com/FasterXML/jackson-databind/commit/3ccde7d938fea547e598fdefe9a82cff37fed5cb
cvssv3.1 7.5 https://github.com/FasterXML/jackson-databind/issues/3328
generic_textual HIGH https://github.com/FasterXML/jackson-databind/issues/3328
ssvc Track https://github.com/FasterXML/jackson-databind/issues/3328
cvssv3.1 7.5 https://github.com/FasterXML/jackson/wiki/Jackson-Release-2.12.6
generic_textual HIGH https://github.com/FasterXML/jackson/wiki/Jackson-Release-2.12.6
cvssv3.1 7.5 https://github.com/FasterXML/jackson/wiki/Jackson-Release-2.13.1
generic_textual HIGH https://github.com/FasterXML/jackson/wiki/Jackson-Release-2.13.1
cvssv3.1 7.5 https://groups.google.com/g/jackson-user/c/OsBsirPM_Vw
generic_textual HIGH https://groups.google.com/g/jackson-user/c/OsBsirPM_Vw
ssvc Track https://groups.google.com/g/jackson-user/c/OsBsirPM_Vw
cvssv3.1 7.5 https://nvd.nist.gov/vuln/detail/CVE-2021-46877
generic_textual HIGH https://nvd.nist.gov/vuln/detail/CVE-2021-46877
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-46877.json
https://api.first.org/data/v1/epss?cve=CVE-2021-46877
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-46877
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://github.com/FasterXML/jackson-databind
https://github.com/FasterXML/jackson-databind/commit/3ccde7d938fea547e598fdefe9a82cff37fed5cb
https://github.com/FasterXML/jackson-databind/issues/3328
https://github.com/FasterXML/jackson/wiki/Jackson-Release-2.12.6
https://github.com/FasterXML/jackson/wiki/Jackson-Release-2.13.1
https://groups.google.com/g/jackson-user/c/OsBsirPM_Vw
2185707 https://bugzilla.redhat.com/show_bug.cgi?id=2185707
CVE-2021-46877 https://nvd.nist.gov/vuln/detail/CVE-2021-46877
GHSA-3x8x-79m2-3w2w https://github.com/advisories/GHSA-3x8x-79m2-3w2w
RHSA-2023:2097 https://access.redhat.com/errata/RHSA-2023:2097
RHSA-2023:3223 https://access.redhat.com/errata/RHSA-2023:3223
RHSA-2023:3299 https://access.redhat.com/errata/RHSA-2023:3299
RHSA-2023:3373 https://access.redhat.com/errata/RHSA-2023:3373
RHSA-2023:3610 https://access.redhat.com/errata/RHSA-2023:3610
RHSA-2023:3815 https://access.redhat.com/errata/RHSA-2023:3815
RHSA-2023:4627 https://access.redhat.com/errata/RHSA-2023:4627
RHSA-2023:5147 https://access.redhat.com/errata/RHSA-2023:5147
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-46877.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

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unchanged

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Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

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Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://github.com/FasterXML/jackson-databind
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

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Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://github.com/FasterXML/jackson-databind/commit/3ccde7d938fea547e598fdefe9a82cff37fed5cb
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

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Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://github.com/FasterXML/jackson-databind/issues/3328
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

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none

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unchanged

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Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-02-26T15:58:50Z/ Found at https://github.com/FasterXML/jackson-databind/issues/3328
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://github.com/FasterXML/jackson/wiki/Jackson-Release-2.12.6
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

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unchanged

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Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://github.com/FasterXML/jackson/wiki/Jackson-Release-2.13.1
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

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none

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unchanged

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Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://groups.google.com/g/jackson-user/c/OsBsirPM_Vw
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

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none

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Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-02-26T15:58:50Z/ Found at https://groups.google.com/g/jackson-user/c/OsBsirPM_Vw
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2021-46877
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

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low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.48504
EPSS Score 0.00252
Published At April 1, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-04-01T12:51:01.234975+00:00 GitLab Importer Import https://gitlab.com/gitlab-org/advisories-community/-/blob/main/maven/com.fasterxml.jackson.core/jackson-databind/CVE-2021-46877.yml 38.0.0