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CVE-2018-8023

22
FAUCET Score

CVE-2018-8023 is a timing attack vulnerability in Apache Mesos versions prior to 1.4.2, 1.5.0, 1.5.1, and 1.6.0. It allows an unauthenticated attacker to deduce the correct HMAC value for JSON Web Token (JWT) authentication due to a non-constant-time string comparison. With a CVSS score of 5.9 (Medium), this vulnerability has high confidentiality impact but requires high attack complexity. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.4.2CPE matchmatch criteria
cpe:2.3:a:apache:mesos:*:*:*:*:*:*:*:*
1.5.0CPE matchmatch criteria
cpe:2.3:a:apache:mesos:1.5.0:*:*:*:*:*:*:*
1.5.1CPE matchmatch criteria
cpe:2.3:a:apache:mesos:1.5.1:*:*:*:*:*:*:*
1.6.0CPE matchmatch criteria
cpe:2.3:a:apache:mesos:1.6.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.9MEDIUM

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
2.2
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
3.06%
Probability of exploitation in next 30 days
EPSS Percentile
86.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0306 is in the 80th percentile among its peer group of 19,954 CVEs.

Social Chatter

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

Remediation

Patch Available

Vendor Patches (3)

mavenpatch availablevia ghsa
Product: org.apache.mesos:mesosFixed in: 1.4.2
mavenpatch availablevia ghsa
Product: org.apache.mesos:mesosFixed in: 1.5.2
mavenpatch availablevia ghsa
Product: org.apache.mesos:mesosFixed in: 1.6.1

Vendor Advisories (2)

mavenGHSA-c8cc-p3j7-4c7fmedium

Moderate severity vulnerability that affects org.apache.mesos:mesos

Oct 17, 2018
redhatCVE-2018-8023Moderate

mesos: Exposure of HMAC value via timing vulnerability in JWT validation

Sep 21, 2018

References

lists.apache.org / thread.html/9b9d3f6bd09f3ebd2284b82077033bdc71da550a1c4c010c2494acc3%40%3Cdev.mesos.apache.org%3E
lists.apache.org / thread.html/r0dd7ff197b2e3bdd80a0326587ca3d0c22e10d1dba17c769d6da7d7a%40%3Cuser.flink.apache.org%3E