NVD / CVE Program· CNA HeroDevs

CVE-2026-68497: jackson-databind: unbounded numeric parse in Duration and XMLGregorianCalendar deserialization allows CPU denial of service

HighCVSS 7.5 · v3.1—No exploit Fix available

Noroxi assessment

Priority: Monitor (action score 30/100)

The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
Probability of exploitation in the next 30 days: 0.62% (FIRST EPSS); higher than 50.5% of all records.
Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
According to CISA the attack is automatable: targets can be found by mass scanning.
Fixed version: FasterXML jackson-databind 2.18.10, 2.21.6, 2.22.2.

Low priority for now. Upgrade to FasterXML jackson-databind 2.18.10, 2.21.6, 2.22.2 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

jackson-databind binds a JSON string to a javax.xml.datatype.Duration or javax.xml.datatype.XMLGregorianCalendar field by passing the raw string verbatim to DatatypeFactory.newDuration(value) or newXMLGregorianCalendar(value) in CoreXMLDeserializers.Std._deserialize. These deserializers are registered by default with no opt-in, so a plain ObjectMapper or JsonMapper with no polymorphic typing and no special configuration reaches this path. The XML Schema lexical grammar permits numeric components of arbitrary length, which the JDK materializes through the native BigInteger(String) and BigDecimal(String) constructors, both quadratic in digit count. Because the digits sit inside a JSON string token rather than a JSON number token, jackson-core's StreamReadConstraints.maxNumberLength guard never applies; jackson's own NumberDeserializers call validateIntegerLength or validateFPLength before parsing a stringified number, but the XML datatype deserializer omits that pre-check. An unauthenticated attacker can therefore submit a single request of a few megabytes, such as a Duration value consisting of the letter P followed by several million digits and the letter Y, and force tens of seconds to several minutes of single-threaded CPU work; a handful of concurrent requests can saturate a server's worker threads. This affects com.fasterxml.jackson.core:jackson-databind from 2.0.0 before 2.18.10, from 2.19.0 before 2.21.6, and from 2.22.0 before 2.22.2, and tools.jackson.core:jackson-databind from 3.0.0 before 3.1.6 and from 3.2.0 before 3.2.2. Users should upgrade to 2.18.10, 2.21.6, 2.22.2, 3.1.6, or 3.2.2.

Published: Sep 11, 2026
Updated: Sep 18, 2026
EPSS: 0.6% · 50th percentile
CWE: CWE-400

Report tools

JSON

Action score

Monitor

Low priority for now.

CVSS: 30 / 40 · 7.5 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 0 / 30 · 0.6%

CISA SSVC decision

Exploitation: proof of concept
Automatable: yes
Technical impact: partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD: —
CNA · HeroDevs: 7.5; NVD has not scored this yet; the score shown is the CNA’s.

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

Not in KEV: no record of exploitation in the wild
No public exploit code on record
A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Is your version affected? Check it

Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

—

Versions reported by the vendor

Affected version ranges reported by the assigning authority (HeroDevs). Independent of NVD's CPE analysis and usually ahead of it.

FasterXML jackson-databind
- 2.0.0 and later · before 2.18.10affected · maven
- 2.19.0 and later · before 2.21.6affected · maven
- 2.22.0 and later · before 2.22.2affected · maven
- 3.0.0 and later · before 3.1.6affected · maven
- 3.2.0 and later · before 3.2.2affected · maven

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

Ecosystem	Package	Affected range	Fix
AlmaLinux:10	idm-pki-acme	before 11.9.0-6.el10_2.alma.1	11.9.0-6.el10_2.alma.1
AlmaLinux:10	idm-pki-base	before 11.9.0-6.el10_2.alma.1	11.9.0-6.el10_2.alma.1
AlmaLinux:10	idm-pki-ca	before 11.9.0-6.el10_2.alma.1	11.9.0-6.el10_2.alma.1
AlmaLinux:10	idm-pki-java	before 11.9.0-6.el10_2.alma.1	11.9.0-6.el10_2.alma.1
AlmaLinux:10	idm-pki-kra	before 11.9.0-6.el10_2.alma.1	11.9.0-6.el10_2.alma.1
AlmaLinux:10	idm-pki-server	before 11.9.0-6.el10_2.alma.1	11.9.0-6.el10_2.alma.1
AlmaLinux:10	idm-pki-tools	before 11.9.0-6.el10_2.alma.1	11.9.0-6.el10_2.alma.1
AlmaLinux:10	python3-idm-pki	before 11.9.0-6.el10_2.alma.1	11.9.0-6.el10_2.alma.1
AlmaLinux:9	pki-jackson-core	before 2.21.6-1.el9_8	2.21.6-1.el9_8
AlmaLinux:9	pki-jackson-databind	before 2.21.6-1.el9_8	2.21.6-1.el9_8
AlmaLinux:9	pki-jackson-jaxrs-json-provider	before 2.21.6-1.el9_8	2.21.6-1.el9_8
AlmaLinux:9	pki-jackson-jaxrs-providers	before 2.21.6-1.el9_8	2.21.6-1.el9_8
AlmaLinux:9	pki-jackson-module-jaxb-annotations	before 2.21.6-1.el9_8	2.21.6-1.el9_8
Debian:12	jackson-databind	from 0	—
Debian:14	jackson-databind	before 2.18.11-1	2.18.11-1
Maven	com.fasterxml.jackson.core:jackson-databind	from 2.14.0 · before 2.18.10	2.18.10
Maven	com.fasterxml.jackson.core:jackson-databind	from 2.19.0 · before 2.21.6	2.21.6
Maven	com.fasterxml.jackson.core:jackson-databind	from 2.22.0 · before 2.22.2	2.22.2
Maven	tools.jackson.core:jackson-databind	from 3.0.0 · before 3.1.6	3.1.6
Maven	tools.jackson.core:jackson-databind	from 3.2.0 · before 3.2.2	3.2.2
openSUSE:Leap 16.0	jackson-annotations	before 2.18.11-160000.1.1	2.18.11-160000.1.1
openSUSE:Leap 16.0	jackson-core	before 2.18.11-160000.1.1	2.18.11-160000.1.1
openSUSE:Leap 16.0	jackson-databind	before 2.18.11-160000.1.1	2.18.11-160000.1.1
openSUSE:Tumbleweed	jackson-databind	before 2.18.11-1.1	2.18.11-1.1

+33

Same product

fasterxml: all records

Other highest-scoring records for the same primary product.

CVE-2017-17485FasterXML jackson-databind through 2.8.10 and 2.9.x through 2.9.3 allows unauthenticated remote code execution because of an incomplete fix…
54Plan
CVE-2017-7525A deserialization flaw was discovered in the jackson-databind, versions before 2.6.7.1, 2.7.9.1 and 2.8.9, which could allow an…
50Plan
CVE-2020-8840FasterXML jackson-databind 2.0.0 through 2.9.10.2 lacks certain xbean-reflect/JNDI blocking, as demonstrated by…
47Plan

Published before and after this one in the same product

← EarlierCVE-2026-19032Sep 1, 2026 · jackson-databind resolves attacker-controlled URI schemes when deserializing java.nio.file.Path
21Monitor
← EarlierCVE-2026-83557Sep 1, 2026 · jackson-databind omits java.lang.Comparable from DefaultBaseTypeLimitingValidator's unsafe base types
22Monitor
Later →CVE-2026-91776Sep 22, 2026 · jackson-databind: unbounded growth of the type id cache in TypeDeserializerBase retains every unknown raw type ID
30Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / package	Fixed version	Source
FasterXML jackson-databind	2.18.10	Vendor (CNA)
FasterXML jackson-databind	2.21.6	Vendor (CNA)
FasterXML jackson-databind	2.22.2	Vendor (CNA)
FasterXML jackson-databind	3.1.6	Vendor (CNA)
FasterXML jackson-databind	3.2.2	Vendor (CNA)
almalinux:idm-pki-acme	11.9.0-6.el10_2.alma.1 · AlmaLinux:10	Package registry (OSV)
almalinux:idm-pki-base	11.9.0-6.el10_2.alma.1 · AlmaLinux:10	Package registry (OSV)
almalinux:idm-pki-ca	11.9.0-6.el10_2.alma.1 · AlmaLinux:10	Package registry (OSV)
almalinux:idm-pki-java	11.9.0-6.el10_2.alma.1 · AlmaLinux:10	Package registry (OSV)
almalinux:idm-pki-kra	11.9.0-6.el10_2.alma.1 · AlmaLinux:10	Package registry (OSV)
almalinux:idm-pki-server	11.9.0-6.el10_2.alma.1 · AlmaLinux:10	Package registry (OSV)
almalinux:idm-pki-tools	11.9.0-6.el10_2.alma.1 · AlmaLinux:10	Package registry (OSV)
almalinux:pki-jackson-core	2.21.6-1.el9_8 · AlmaLinux:9	Package registry (OSV)
almalinux:pki-jackson-databind	2.21.6-1.el9_8 · AlmaLinux:9	Package registry (OSV)
almalinux:pki-jackson-jaxrs-json-provider	2.21.6-1.el9_8 · AlmaLinux:9	Package registry (OSV)
almalinux:pki-jackson-jaxrs-providers	2.21.6-1.el9_8 · AlmaLinux:9	Package registry (OSV)
almalinux:python3-idm-pki	11.9.0-6.el10_2.alma.1 · AlmaLinux:10	Package registry (OSV)
debian:jackson-databind	2.18.11-1 · Debian:14	Package registry (OSV)
Maven:com.fasterxml.jackson.core:jackson-databind	2.18.10	Package registry (OSV)
Maven:com.fasterxml.jackson.core:jackson-databind	2.21.6	Package registry (OSV)
Maven:com.fasterxml.jackson.core:jackson-databind	2.22.2	Package registry (OSV)
Maven:tools.jackson.core:jackson-databind	3.1.6	Package registry (OSV)
Maven:tools.jackson.core:jackson-databind	3.2.2	Package registry (OSV)
opensuse:jackson-annotations	2.18.11-160000.1.1 · openSUSE:Leap 16.0	Package registry (OSV)
opensuse:jackson-core	2.18.11-160000.1.1 · openSUSE:Leap 16.0	Package registry (OSV)
opensuse:jackson-databind	2.18.11-1.1 · openSUSE:Tumbleweed	Package registry (OSV)
red hat:dogtag-pki	0:11.9.0-6.el10_2 · Red Hat:enterprise_linux:10.2	Package registry (OSV)
red hat:dogtag-pki-debugsource	0:11.9.0-6.el10_2 · Red Hat:enterprise_linux:10.2	Package registry (OSV)
red hat:idm-pki-acme	0:11.9.0-6.el10_2 · Red Hat:enterprise_linux:10.2	Package registry (OSV)
red hat:idm-pki-base	0:11.9.0-6.el10_2 · Red Hat:enterprise_linux:10.2	Package registry (OSV)

+21

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

waydeshireporter
pjfanningremediation developer

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

CVE-2026-9177611 days apartjackson-databind: unbounded growth of the type id cache in TypeDeserializerBase retains every unknown raw type ID
30Monitor
CVE-2026-9177711 days apartjackson-databind: quadratic forward-reference completion in Collection and Map deserializers
30Monitor
CVE-2026-5019380 days apartjackson-databind: Deeply nested JsonNode throws StackOverflowError for toString()
25Monitor

Not on record for this CVE: public bounty program.

Technical details

Attack conditions

Anyone who can reach it over the internet can trigger it.
No account or password is required.
No user action is required.
No special conditions are required; it is repeatable.

If successful

Confidentiality: none
Integrity: none
Availability: high · the service can be disrupted

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

Weakness class (CWE)

CWE-400 · Uncontrolled Resource Consumption

CVSS vector

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

nvd-secondary

Root cause

Code that parses nested structures sets no depth or size limit. A small input can turn into a disproportionate processing load.

The bug in code

The whole CWE-400 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

1function expand(node) {
2  return node.children.map(expand);
3}

Fixed

1const MAX_DEPTH = 32;
2function expand(node, depth = 0) {
3  if (depth > MAX_DEPTH) throw new Error("too deep");
4  return node.children.map((c) => expand(c, depth + 1));
5}

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Attack patterns (CAPEC)

ATT&CK techniques

Endpoint Denial of ServiceT1499

Change log (1)

Fix✗ → ✓Sep 28, 2026, 10:08 PM UTC

For records you follow, these changes also arrive as notifications. →

References

github.com/FasterXML/jackson-databind/commit/a99b7e74c8928f43f6975773a8c862c8316178bd

Show all references (2 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records