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Critical severity9.1NVD Advisory· Published Apr 23, 2021· Updated Jun 17, 2026

CVE-2021-26291

CVE-2021-26291

Description

Apache Maven will follow repositories that are defined in a dependency’s Project Object Model (pom) which may be surprising to some users, resulting in potential risk if a malicious actor takes over that repository or is able to insert themselves into a position to pretend to be that repository. Maven is changing the default behavior in 3.8.1+ to no longer follow http (non-SSL) repository references by default. More details available in the referenced urls. If you are currently using a repository manager to govern the repositories used by your builds, you are unaffected by the risks present in the legacy behavior, and are unaffected by this vulnerability and change to default behavior. See this link for more information about repository management: https://maven.apache.org/repository-management.html

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Affected packages

Versions sourced from the GitHub Security Advisory.

PackageAffected versionsPatched versions
org.apache.maven:maven-compatMaven
< 3.8.13.8.1
org.apache.maven:maven-coreMaven
< 3.8.13.8.1

Affected products

10

Patches

Vulnerability mechanics

References

90

News mentions

0

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