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CVE-2018-21234

34
FAUCET Score

CVE-2018-21234 describes a critical deserialization vulnerability in Jodd versions prior to 5.0.4, specifically when setClassMetadataName is enabled, impacting products like Apache Hive and Jodd Hive. This flaw carries a CVSS score of 9.8 (Critical), indicating it can be exploited remotely with low complexity, leading to complete compromise of confidentiality, integrity, and availability. While the vulnerability is severe, there is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 5.0.4CPE matchmatch criteria
cpe:2.3:a:jodd:jodd:*:*:*:*:*:*:*:*
3.1.2CPE matchmatch criteria
cpe:2.3:a:apache:hive:3.1.2:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
8.32%
Probability of exploitation in next 30 days
EPSS Percentile
94.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0832 is in the 90th percentile among its peer group of 36,833 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
mavenpatch availablevia ghsa
Product: org.jodd:jodd-jsonFixed in: 5.0.4

Vendor Advisories (1)

mavenGHSA-jrg3-qq99-35g7critical

Deserialization of Untrusted Data in Jodd

Feb 10, 2022

References

github.com / oblac/jodd/commit/9bffc3913aeb8472c11bb543243004b4b4376f16
PatchThird Party Advisory
github.com / oblac/jodd/compare/v5.0.3...v5.0.4
Third Party Advisory
github.com / oblac/jodd/issues/628
Third Party Advisory
lists.apache.org / thread.html/r0bacc701ab7105500a0ab2769270d18f332cb379e6a62ec7553f3327%40%3Cissues.hive.apache.org%3E
lists.apache.org / thread.html/r157d01c96a2c10e7ceb3e005f42c52cfe87b11dd018935e1c4277433%40%3Cgitbox.hive.apache.org%3E
lists.apache.org / thread.html/r317aec95c436848233047af7ecb3ce04ce446eb6031f981aef50df0d%40%3Cdev.drill.apache.org%3E
lists.apache.org / thread.html/r729bc1e0f367fe8a857ac8a14641dba284ac4cf5131edf483022cf59%40%3Cissues.hive.apache.org%3E
lists.apache.org / thread.html/r965503b27d67a2d934e34fc1d088c9547d51d927c43b8b9bd9b7e695%40%3Cissues.hive.apache.org%3E
lists.apache.org / thread.html/rc23200043872384e0fc48a4a4502f4c6b4b5ddc79ba4076414150d59%40%3Cissues.hive.apache.org%3E
lists.apache.org / thread.html/rc85b650b4ad2c77d7c39c69824488e40dce6d0ebbb4204777d094375%40%3Cgitbox.hive.apache.org%3E
lists.apache.org / thread.html/rd575d9877424a2d8776f5c2ff33bf3dc3382cd83f031d483f29c11ab%40%3Cissues.hive.apache.org%3E
lists.apache.org / thread.html/rdbb99b43334b59d3d3478d360c87e3235ba22edb1de7d39019194347%40%3Cissues.hive.apache.org%3E
lists.apache.org / thread.html/rdce006b282e56c5cc73cdf452c51c5097154d0503396d62f48abbeae%40%3Cgitbox.hive.apache.org%3E
lists.apache.org / thread.html/rf458683390d6650b26a2c8ba8ad396e038e520ad1cc3f3f1e20514d9%40%3Cdev.hive.apache.org%3E