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CVE-2024-31033

21
FAUCET Score

CVE-2024-31033 describes a potential issue in JJWT (Java JWT) versions through 0.12.5, specifically within the setSigningKey() and signWith() methods, where certain characters might be ignored, leading users to believe they have a stronger key than is actually in use. The vendor disputes this, attributing the behavior to user error and an outdated test version. With a CVSS score of 6.8 (Medium), this vulnerability has a network attack vector, high attack complexity, and could lead to high confidentiality and integrity impacts if exploited, though user interaction is required. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
N/AN/A
n/aCNA affected

CVSS Data

CVSS version used by this source: 3.1

6.8MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
1.6
Impact Score
5.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.78%
Probability of exploitation in next 30 days
EPSS Percentile
52.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0078 is in the 67th percentile among its peer group of 707 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.2 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.2 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

mavenGHSA-r65j-6h5f-4f92medium

Withdrawn: JJWT improperly generates signing keys

Apr 1, 2024

References

github.com / 2308652512/JJWT_BUG
github.com / jwtk/jjwt
github.com / jwtk/jjwt/issues/930
viralpatel.net / java-create-validate-jwt-token