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CVE-2018-8023

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

5.9 MediumFix available

Apache Mesos can be configured to require authentication to call the Executor HTTP API using JSON Web Token (JWT). In Apache Mesos versions pre-1.4.2, 1.5.0, 1.5.1, 1.6.0 the comparison of the generated HMAC value against the provided signature in the JWT implementation used is vulnerable to a timing attack because instead of a constant-time string comparison routine a standard == operator has been used. A malicious actor can therefore abuse the timing difference of when the JWT validation function returns to reveal the correct HMAC value.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
High
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
None
Availability
None

Exploit likelihood

3.06%Up 1.1 points since Apr 14, 2021
90%50%10%1%

What each source reports

NVD Score used 5.9

Apache Mesos can be configured to require authentication to call the Executor HTTP API using JSON Web Token (JWT). In Apache Mesos versions pre-1.4.2, 1.5.0, 1.5.1, 1.6.0 the comparison of the generated HMAC value against the provided signature in the JWT implementation used is vulnerable to a timing attack because instead of a constant-time string comparison routine a standard == operator has been used. A malicious actor can therefore abuse the timing difference of when the JWT validation function returns to reveal the correct HMAC value.

Record
CVE-2018-8023
CVSS 3.0
5.9 MediumCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS 2.0
4.3 MediumAV:N/AC:M/Au:N/C:P/I:N/A:N
Weakness
CWE-200
Updated
2026-11-02
CVE List No score

Apache Mesos can be configured to require authentication to call the Executor HTTP API using JSON Web Token (JWT). In Apache Mesos versions pre-1.4.2, 1.5.0, 1.5.1, 1.6.0 the comparison of the generated HMAC value against the provided signature in the JWT implementation used is vulnerable to a timing attack because instead of a constant-time string comparison routine a standard == operator has been used. A malicious actor can therefore abuse the timing difference of when the JWT validation function returns to reveal the correct HMAC value.

Record
CVE-2018-8023
Updated
2026-11-02
EUVDEUVD-2018-0571 No score

Apache Mesos can be configured to require authentication to call the Executor HTTP API using JSON Web Token (JWT). In Apache Mesos versions pre-1.4.2, 1.5.0, 1.5.1, 1.6.0 the comparison of the generated HMAC value against the provided signature in the JWT implementation used is vulnerable to a timing attack because instead of a constant-time string comparison routine a standard == operator has been used. A malicious actor can therefore abuse the timing difference of when the JWT validation function returns to reveal the correct HMAC value.

Record
EUVD-2018-0571
Updated
2026-11-03
GitHub AdvisoriesGHSA-c8cc-p3j7-4c7f 5.9

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

Apache Mesos can be configured to require authentication to call the Executor HTTP API using JSON Web Token (JWT). In Apache Mesos versions pre-1.4.2, 1.5.0, 1.5.1, 1.6.0 the comparison of the generated HMAC value against the provided signature in the JWT implementation used is vulnerable to a timing attack because instead of a constant-time string comparison routine a standard == operator has been used. A malicious actor can therefore abuse the timing difference of when the JWT validation function returns to reveal the correct HMAC value.

Record
GHSA-c8cc-p3j7-4c7f
CVSS 3.0
5.9 MediumCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness
CWE-200
Updated
2026-11-02
OSV 5.9

Apache Mesos can be configured to require authentication to call the Executor HTTP API using JSON Web Token (JWT). In Apache Mesos versions pre-1.4.2, 1.5.0, 1.5.1, 1.6.0 the comparison of the generated HMAC value against the provided signature in the JWT implementation used is vulnerable to a timing attack because instead of a constant-time string comparison routine a standard == operator has been used. A malicious actor can therefore abuse the timing difference of when the JWT validation function returns to reveal the correct HMAC value.

Record
CVE-2018-8023
CVSS 3.0
5.9 MediumCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Updated
2026-11-02
OSVGHSA-c8cc-p3j7-4c7f 5.9

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

Apache Mesos can be configured to require authentication to call the Executor HTTP API using JSON Web Token (JWT). In Apache Mesos versions pre-1.4.2, 1.5.0, 1.5.1, 1.6.0 the comparison of the generated HMAC value against the provided signature in the JWT implementation used is vulnerable to a timing attack because instead of a constant-time string comparison routine a standard == operator has been used. A malicious actor can therefore abuse the timing difference of when the JWT validation function returns to reveal the correct HMAC value.

Record
GHSA-c8cc-p3j7-4c7f
CVSS 3.0
5.9 MediumCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness
CWE-200
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
org.apache.mesos:mesos
Maven
before 1.4.2
1.4.2
org.apache.mesos:mesos
Maven
1.5.0 up to 1.5.2
1.5.2
org.apache.mesos:mesos
Maven
1.6.0 up to 1.6.1
1.6.1
org.apache.mesos:mesos
Maven
before 1.4.2, plus listed versions
0.10.0-incubating0.11.0-incubating0.12.0-incubating0.12.10.13.0
Show 45 moreShow less
0.14.00.14.10.14.20.15.00.15.0-rc30.15.0-rc40.16.00.16.0-rc40.16.0-rc50.17.00.17.0-rc10.17.0-rc20.18.00.18.0-rc10.18.0-rc20.18.0-rc30.18.0-rc40.18.0-rc50.18.0-rc60.18.10.18.1-rc10.18.1-rc20.18.20.18.2-rc10.19.00.19.0-rc30.19.10.19.1-rc10.20.00.20.0-rc10.20.0-rc20.20.10.20.1-rc10.20.1-rc20.20.1-rc30.21.00.21.0-rc10.21.0-rc20.21.0-rc30.21.10.21.1-rc10.21.1-rc20.21.20.21.2-rc10.22.0
1.4.2

History

History
RecordedChangedSources
aliases, productsEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2018-8023 is a medium vulnerability (CVSS 5.9) in Apache Mesos, published September 21, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 3.06%, the 87th percentile. Fixed in org.apache.mesos:mesos 1.4.2.

References

This page doesn't list everything

Left out here: 119 versions. The JSON record has them.

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