GHSA-288c-cq4h-88gq CVE-2020-25649

XML External Entity (XXE) Injection in Jackson Databind

High Maven

Severity: 7.5 / 10; High · CVSS 3.1
Exploit chance (EPSS): 17.71%; Chance of exploitation in the next 30 days. Higher than 97.16% of scored vulnerabilities.
Known exploited: No; Not in CISA's catalog
Weakness: CWE-611 Improper Restriction of XML External Entity Reference
Fix: 2.6.7.4; Upgrade com.fasterxml.jackson.core:jackson-databind to this version or later

Description

A flaw was found in FasterXML Jackson Databind, where it did not have entity expansion secured properly. This flaw allows vulnerability to XML external entity (XXE) attacks. The highest threat from this vulnerability is data integrity.

Affected versions

Maven

Package	Vulnerable	Fixed in
com.fasterxml.jackson.core:jackson-databind	`>= 2.6.0, < 2.6.7.4`	`2.6.7.4`
com.fasterxml.jackson.core:jackson-databind	`>= 2.7.0.0, < 2.9.10.7`	`2.9.10.7`
com.fasterxml.jackson.core:jackson-databind	`>= 2.10.0.0, < 2.10.5.1`	`2.10.5.1`

How to fix

Move to the fixed version or later with your package manager, update the lockfile, and run your tests. If the package only arrives through another dependency, upgrade that dependency first. If none of its releases pulls a fixed version yet, force the version with your package manager's override.

com.fasterxml.jackson.core:jackson-databind Maven → `2.6.7.4`

maven

<dependency><groupId>com.fasterxml.jackson.core</groupId><artifactId>jackson-databind</artifactId><version>2.6.7.4</version></dependency>

gradle

implementation("com.fasterxml.jackson.core:jackson-databind:2.6.7.4")

Severity breakdown

CVSS 3.1 7.5

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Attack vector: Network
Attack complexity: Low
Privileges required: None
User interaction: None
Scope: Unchanged
Confidentiality: None
Integrity: High
Availability: None

Weakness

CWE-611: Improper Restriction of XML External Entity Reference

The product processes an XML document that can contain XML entities with URIs that resolve to documents outside of the intended sphere of control, causing the product to embed incorrect documents into its output.

How to prevent it

Implementation, System Configuration: Many XML parsers and validators can be configured to disable external entity expansion.

References

Advisories

nvd.nist.gov/vuln/detail/CVE-2020-25649

Packages

github.com/FasterXML/jackson-databind

Timeline

Feb 18, 2021 Published
Aug 7, 2026 Last updated by the source
Oct 31, 2026 Latest EPSS score

Advisory	Severity	Why it's related
GHSA-cxp5-3px4-pw24 jackson-databind quadratic forward-reference completion	High	Also affects com.fasterxml.jackson.core:jackson-databind
GHSA-wv8q-qhhj-9h54 jackson-databind retains every unknown raw type ID	High	Also affects com.fasterxml.jackson.core:jackson-databind
GHSA-q4xh-88c3-wmh7 jackson-databind: Duration XMLGregorianCalendar Unbounded Number Parse DoS	High	Also affects com.fasterxml.jackson.core:jackson-databind
GHSA-gx83-3vf8-gh7j jackson-databind: Comparable missing from DefaultBaseTypeLimitingValidator's unsafe base types (incomplete PolymorphicTypeValidator denylist)	Medium	Also affects com.fasterxml.jackson.core:jackson-databind
GHSA-wjgm-6hv5-3cvf jackson-databind: Path Deserialization Missing Scheme Allowlist for FileSystemProvider Resolution	Medium	Also affects com.fasterxml.jackson.core:jackson-databind
GHSA-vvgp-rfg2-7rr6 jackson-databind: Incomplete fix for CVE-2026-54514: eager DNS resolution (SSRF) still present in InetAddress deserialization	Medium	Also affects com.fasterxml.jackson.core:jackson-databind
GHSA-mhm7-754m-9p8w jackson-databind: `@JsonView` bypass for creator properties with `@JsonTypeInfo(include=As.EXTERNAL_PROPERTY)`	Medium	Also affects com.fasterxml.jackson.core:jackson-databind
GHSA-5gvw-p9qm-jgwh jackson-databind: @JsonView bypassed for @JsonUnwrapped container properties on deserialization	Medium	Also affects com.fasterxml.jackson.core:jackson-databind

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