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CVE-2024-21742

17
FAUCET Score

CVE-2024-21742 is a medium-severity vulnerability affecting Apache James MIME4J, where improper input validation allows for header injection in MIME messages. An unauthenticated attacker can exploit this remotely with low complexity to add unintended headers, leading to a low impact on integrity. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 0.8.9CPE matchmatch criteria
cpe:2.3:a:apache:james_mime4j:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.3MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.09%
Probability of exploitation in next 30 days
EPSS Percentile
61.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0109 is in the 39th percentile among its peer group of 23,701 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

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

Remediation

Patch Available

Vendor Patches (1)

mavenpatch availablevia ghsa
Product: org.apache.james:apache-mime4j-coreFixed in: 0.8.10

Vendor Advisories (2)

mavenGHSA-jw7r-rxff-gv24medium

Apache James MIME4J improper input validation vulnerability

Feb 27, 2024
redhatCVE-2024-21742Moderate

Mime4J: Mime4J DOM header injection

Feb 27, 2024

References

openwall.com / lists/oss-security/2024/02/27/5
Mailing List
lists.apache.org / thread/nrqzg93219wdj056pqfszsd33dc54kfy
Mailing ListVendor Advisory