`CVE-2026-19032`

Severity	5.3 Medium CVSS 3.1
Fixed in	`3.1.6`, `3.2.2`
Weakness	Unsafe reflection (CWE-470)
Published	1 Sep 2026
Updated	8 Sep 2026

Published 2 months ago. NVD often adds the list of affected products days or weeks after a CVE is published, and the other sources we check lag too. The scope and status here may change.

Description

jackson-databind's deserializer for java.nio.file.Path resolves an attacker-supplied URI without restricting the URI scheme. In JDKFromStringDeserializer.NioPathHelper.deserialize, a string bound from untrusted JSON is passed to new URI(value) and then to Path.of(uri). When that throws FileSystemNotFoundException, the code enumerates ServiceLoader<FileSystemProvider> and calls provider.getPath(uri) on the first provider whose scheme matches the attacker-chosen scheme. Untrusted JSON can therefore select and drive an arbitrary registered FileSystemProvider during readValue under a default JsonMapper, and forces provider class loading at the same time. With only the JDK built-in providers (file, jar/zipfs) present, the resolved path is inert and no mount or network I/O occurs; further impact requires a side-effecting third-party FileSystemProvider on the classpath. This affects com.fasterxml.jackson.core:jackson-databind from 2.8.0 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. Binding java.nio.file.Path from untrusted JSON should be avoided regardless of version.

CWE-610

Exploitation status

Proof of concept only

A proof of concept exists, but no reviewed exploit catalogue lists this CVE.

CISA KEV not listed
VulnCheck KEV not listed
CISA Vulnrichment exploitation: poc CISA recorded that an exploit has been demonstrated. Automatable: yes, technical impact: partial.
Indexed PoC none indexed
EPSS 0.57% chance in 30 days

Waratek protection

Protected by Waratek

Waratek has a rule that blocks attacks on this vulnerability.

Protection full Reflection
Action available security rule
Review automated Inferred
Record active

Decided by	A vulnerability class already blocked by an ARMR security rule
Finding	Protected by Waratek's ARMR reflection security rule, which blocks this class of attack at the JVM level without a rule written for this CVE specifically. The CVE's weakness is CWE-470: Unsafe Reflection.
Candidate fix	https://github.com/FasterXML/jackson-databind/commit/cc6756b61ed90b6b9227f670e0408d5d9bd48551 : a commit: the change itself

Decided by

A vulnerability class already blocked by an ARMR security rule

Finding

Protected by Waratek's ARMR reflection security rule, which blocks this class of attack at the JVM level without a rule written for this CVE specifically. The CVE's weakness is CWE-470: Unsafe Reflection.

Candidate fix

https://github.com/FasterXML/jackson-databind/commit/cc6756b61ed90b6b9227f670e0408d5d9bd48551 : a commit: the change itself

How to mitigate CVE-2026-19032

Upgrade the affected software to a release that fixes it: 3.1.6 or 3.2.2. Until you can, Waratek RASP blocks exploitation with its reflection rule. It runs inside the Java application, with no code changes.

Waratek RASP Runtime protection for Java applications

Affected software and releases

Oracle advisories

Advisory	Type	Quarter	Products Oracle names in its risk matrix
Oracle Critical Patch Update October 2026 ↗	CPU	2026-Q4	Oracle Construction and Engineering / Platform (jackson-databind) (21.12.0-21.12.17, 22.12.0-22.12.15, 23.12.0-23.12.16, 24.12.0-24.12.16, 25.12.0-25.12.9) Oracle Utilities Applications / Security (jackson-databind) (4.4.0.2.0, 4.4.0.3.0, 4.4.0.4.0, 4.5.0.0.0, 4.5.0.1.1, 4.5.0.1.3, 4.5.0.2.0, 25.4, 25.10, 26.4, 26.10)

Advisory

Type

Quarter

Products Oracle names in its risk matrix

Oracle Critical Patch Update October 2026 ↗

CPU

2026-Q4

Oracle Construction and Engineering / Platform (jackson-databind) (21.12.0-21.12.17, 22.12.0-22.12.15, 23.12.0-23.12.16, 24.12.0-24.12.16, 25.12.0-25.12.9)
Oracle Utilities Applications / Security (jackson-databind) (4.4.0.2.0, 4.4.0.3.0, 4.4.0.4.0, 4.5.0.0.0, 4.5.0.1.1, 4.5.0.1.3, 4.5.0.2.0, 25.4, 25.10, 26.4, 26.10)

Oracle components and versions

Family	Component	Versions, as Oracle lists them	Read as
Oracle Construction and Engineering	Platform (jackson-databind)	21.12.0-21.12.17, 22.12.0-22.12.15, 23.12.0-23.12.16, 24.12.0-24.12.16, 25.12.0-25.12.9
Oracle Utilities Applications	Security (jackson-databind)	4.4.0.2.0, 4.4.0.3.0, 4.4.0.4.0, 4.5.0.0.0, 4.5.0.1.1, 4.5.0.1.3, 4.5.0.2.0, 25.4, 25.10, 26.4, 26.10	4.4.0.2.0 · 4.4.0.3.0 · 4.4.0.4.0 · 4.5.0.0.0 · 4.5.0.1.1 · 4.5.0.1.3 · 4.5.0.2.0 · 25.4 · 25.10 · 26.4 · 26.10

Family

Component

Versions, as Oracle lists them

Read as

Oracle Construction and Engineering

Platform (jackson-databind)

21.12.0-21.12.17, 22.12.0-22.12.15, 23.12.0-23.12.16, 24.12.0-24.12.16, 25.12.0-25.12.9

Oracle Utilities Applications

Security (jackson-databind)

4.4.0.2.0, 4.4.0.3.0, 4.4.0.4.0, 4.5.0.0.0, 4.5.0.1.1, 4.5.0.1.3, 4.5.0.2.0, 25.4, 25.10, 26.4, 26.10

4.4.0.2.0 · 4.4.0.3.0 · 4.4.0.4.0 · 4.5.0.0.0 · 4.5.0.1.1 · 4.5.0.1.3 · 4.5.0.2.0 · 25.4 · 25.10 · 26.4 · 26.10

Maven packages

Affected and fixed versions, from OSV.dev

Package Introduced Fixed Last affected

tools.jackson.core:jackson-databind 3.0.0 3.1.6 unbounded

tools.jackson.core:jackson-databind 3.2.0 3.2.2 unbounded

com.fasterxml.jackson.core:jackson-databind 2.8.0 2.18.10 unbounded

com.fasterxml.jackson.core:jackson-databind 2.19.0 2.21.6 unbounded

com.fasterxml.jackson.core:jackson-databind 2.22.0 2.22.2 unbounded

Package	Introduced	Fixed	Last affected
`tools.jackson.core:jackson-databind`	3.0.0	`3.1.6`	unbounded
`tools.jackson.core:jackson-databind`	3.2.0	`3.2.2`	unbounded
`com.fasterxml.jackson.core:jackson-databind`	2.8.0	`2.18.10`	unbounded
`com.fasterxml.jackson.core:jackson-databind`	2.19.0	`2.21.6`	unbounded
`com.fasterxml.jackson.core:jackson-databind`	2.22.0	`2.22.2`	unbounded

Products and versions

2 products, 5 version entries

Source	Vendor	Product	Scheme	Affected versions
osv	com.fasterxml.jackson.core	jackson-databind	generic	≥ 2.8.0 and ＜ 2.18.10 · ≥ 2.19.0 and ＜ 2.21.6 · ≥ 2.22.0 and ＜ 2.22.2
osv	tools.jackson.core	jackson-databind	generic	≥ 3.0.0 and ＜ 3.1.6 · ≥ 3.2.0 and ＜ 3.2.2

Source

Vendor

Product

Scheme

Affected versions

osv

com.fasterxml.jackson.core

jackson-databind

generic

≥ 2.8.0 and ＜ 2.18.10 · ≥ 2.19.0 and ＜ 2.21.6 · ≥ 2.22.0 and ＜ 2.22.2

osv

tools.jackson.core

jackson-databind

generic

≥ 3.0.0 and ＜ 3.1.6 · ≥ 3.2.0 and ＜ 3.2.2

References

URL	Tags
https://github.com/FasterXML/jackson-databind/commit/cc6756b61ed90b6b9227f670e0408d5d9bd48551	commit
https://github.com/FasterXML/jackson-databind/security/advisories/GHSA-wjgm-6hv5-3cvf	WEB
https://github.com/FasterXML/jackson-databind/pull/6129	WEB
https://github.com/FasterXML/jackson-databind/commit/ce26eda3481cd796f76ba4c53ffe1da23b53f166	WEB
https://github.com/FasterXML/jackson-databind/commit/d94bb632becfe0ba96926b9909ab06d1f87aad6d	WEB
https://github.com/FasterXML/jackson-databind	PACKAGE
https://github.com/FasterXML/jackson-databind/releases/tag/jackson-databind-2.18.10	WEB
https://github.com/FasterXML/jackson-databind/releases/tag/jackson-databind-2.21.6	WEB
https://github.com/FasterXML/jackson-databind/releases/tag/jackson-databind-2.22.2	WEB
https://github.com/FasterXML/jackson-databind/releases/tag/jackson-databind-3.1.6	WEB

URL

Timeline

Published	2026-09-01	By the CVE Program.
NVD record modified	2026-09-08	NVD's own last-modified date for this record.

Published

2026-09-01

By the CVE Program.

NVD record modified

2026-09-08

NVD's own last-modified date for this record.

How VRT decided (17 of 24 rules ran)

17 of 24 rules ran. The rest didn't run because an earlier rule had already settled the CVE.

# Rule Outcome Status Detail

identity: Does this identifier describe a vulnerability at all? the first rule that matches decides

1 rejected no match CVE Program withdrawal of this identifier

scope: Is it a vulnerability Waratek protects? the first rule that matches decides

2 armr-patch-file no match An ARMR patch file on disk for this CVE

3 armr-secure-rule-file no match An ARMR security-rule template on disk for this CVE

4 manual-classification no match A researcher's recorded decision for this specific CVE

5 manual classification no match Manual classification of this CVE in the legacy dataset

6 non-java-upstream no match A root cause in non-Java code: an OS kernel, a C library, or a bundled runtime

7 oracle-component no match The defect being in a component of a tracked product the agent does not reach: JavaFX, the Java SE installer, the JInitiator browser plug-in, the native WebLogic proxy plug-in, or a native part of Oracle Application Server or Collaboration Suite (HTTP Server, Web Cache, Internet Directory, mail and calendar servers). Oracle gives these no CPE of their own and names them only in the description.

8 java-client-side no match Oracle's own risk-matrix note saying the CVE is reached only through untrusted code in the Java sandbox (applets, Web Start) or only through a client installation of Java, so a server running its own trusted code is not exposed

9 osv-maven matched In scope Maven packages: tools.jackson.core:jackson-databind, com.fasterxml.jackson.core:jackson-databind

10 cna-maven-package not reached An affected Maven artifact named by the CNA itself

11 known-cpe-product not reached An NVD CPE naming a product ARMR tracks

12 cna-cpe-product not reached A CPE the CNA published naming a tracked product. Oracle publishes these on advisory day, months before NVD.

13 oracle-advisory-family not reached A tracked product family named in Oracle's own risk matrix. CPE cannot carry a suite name, only a module.

14 cna-named-product not reached A tracked product named in words by the CVE's own CNA, on a record with no CPE yet. Apache and Eclipse publish these on advisory day, before NVD adds CPE data.

15 non-deployable-product not reached The only affected product being a sealed appliance image, where Java runs but no -javaagent can be attached

16 unmatched-product not reached No tracked product matched above, and none present at all

disposition: What do we do about one that is? every rule runs

17 patch-hint matched Mitigation candidate References include candidate fix URL (commit tier): https://github.com/FasterXML/jackson-databind/commit/cc6756b61ed90b6b9227f670e0408d5d9bd48551

18 open-source-maven skipped The affected package being open source on Maven, so the fix can be read

19 poc-derivable skipped An indexed exploit clearing the evidence bar to reverse-engineer, where there is no source to read

20 no-exploit skipped Nothing to build a rule from yet: no published exploit, no CISA record of exploitation and no source-level change to read

21 secure-rule-match decided it matched Protected by Waratek CWE-470 (Unsafe Reflection) is mitigable by an ARMR reflection security rule.

22 exploited-no-fix-or-poc skipped Somebody exploiting this CVE (a CISA or VulnCheck KEV listing, or a CISA verdict of active exploitation), with no fix, source code or PoC to build a rule from

23 below-action-threshold skipped Medium or Low severity, no CISA or VulnCheck KEV listing, no PoC clearing the evidence bar, no CISA verdict, no Oracle advisory

24 no-exploit-published skipped Exploit code for this candidate, published in a reviewed catalogue or a GitHub repository with 5 or more stars, or in use per CISA or VulnCheck; not only a CISA verdict, a forecast, or nothing at all

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