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CVE-2021-26291

34
FAUCET Score

CVE-2021-26291 describes a critical vulnerability in Apache Maven, Oracle, and Quarkus, where Maven's default behavior of following repositories defined in a dependency's Project Object Model (POM) could lead to supply chain attacks. A malicious actor could exploit this by taking over a repository or impersonating one, potentially leading to arbitrary code execution or data exfiltration. This vulnerability has a CVSS score of 9.1 (CRITICAL) due to its network-based attack vector, low attack complexity, and high impact on confidentiality and integrity. While there is no known active exploitation or public exploit code, the vulnerability has garnered significant community discussion and media coverage, indicating a high level of concern. Maven versions 3.8.1 and later mitigate this risk by no longer following non-SSL repository references by default.

Impacted Technologies

VendorProductVersion(s)CPE
< 3.8.1CPE matchmatch criteria
cpe:2.3:a:apache:maven:*:*:*:*:*:*:*:*
< 1.13.5CPE matchmatch criteria
cpe:2.3:a:quarkus:quarkus:*:*:*:*:*:*:*:*
>= 8.0.6.0.0, <= 8.0.9.0.0CPE matchmatch criteria
cpe:2.3:a:oracle:financial_services_analytical_applications_infrastructure:*:*:*:*:*:*:*:*
>= 8.1.0.0.0, <= 8.1.2.0CPE matchmatch criteria
cpe:2.3:a:oracle:financial_services_analytical_applications_infrastructure:*:*:*:*:*:*:*:*
23.1CPE matchmatch criteria
cpe:2.3:a:oracle:goldengate_big_data_and_application_adapters:23.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.1CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
5.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
8.69%
Probability of exploitation in next 30 days
EPSS Percentile
94.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0869 is in the 90th percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (40)

mavenpatch availablevia ghsa
Product: org.apache.maven:maven-compatFixed in: 3.8.1
mavenpatch availablevia ghsa
Product: org.apache.maven:maven-coreFixed in: 3.8.1
microsoftpatch availablevia msrc
Product: 19669-17086Fixed in: 1.5.0-6
microsoftpatch availablevia msrc
Product: 19033-17086Fixed in: 1.5.0-6
microsoftpatch availablevia msrc
Product: CBL Mariner 1.0 ARMFixed in: 3.8.1-1
microsoftpatch availablevia msrc
Product: CBL Mariner 1.0 x64Fixed in: 3.8.1-1
microsoftpatch availablevia msrc
Product: cm1 maven 3.8.1-1 on CBL Mariner 1.0Fixed in: 3.8.1-1
microsoftpatch availablevia msrc
Product: cbl2 javapackages-bootstrap 1.5.0-6 on CBL Mariner 2.0Fixed in: 1.5.0-6
microsoftpatch availablevia msrc
Product: 19060-16820Fixed in: 3.8.1-1
oraclepatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: RHINT Camel-K 1.6.4Fixed in: maven-core
View patch
redhatpatch availablevia redhat_api
Product: RHINT Camel-Q 2.2.1
View patch
redhatpatch availablevia redhat_api
Product: RHPAM 7.13.1 asyncFixed in: rhpam-7-businesscentral-rhel8-container
View patch
redhatpatch availablevia redhat_api
Product: Red Hat build of Quarkus 2.2.3Fixed in: maven-wrapper
View patch
redhatpatch availablevia redhat_api
Product: OpenShift Developer Tools and Services for OCP 4.11Fixed in: jenkins-2-plugins-0:4.11.1683009941-1.el8
View patch
redhatpatch availablevia redhat_api
Product: OCP-Tools-4.13-RHEL-8Fixed in: jenkins-2-plugins-0:4.13.1706516346-1.el8
View patch
redhatpatch availablevia redhat_api
Product: OCP-Tools-4.12-RHEL-8Fixed in: jenkins-2-plugins-0:4.12.1706515741-1.el8
View patch
redhatno patchvia redhat_api
Product: Red Hat Process Automation 7Fixed in: rhpam-7-controller-rhel8-container
redhatno patchvia redhat_api
Product: Red Hat Process Automation 7Fixed in: rhpam-7-kieserver-rhel8-container
redhatno patchvia redhat_api
Product: Red Hat Fuse 7Fixed in: fuse-eap-openshift-container
redhatno patchvia redhat_api
Product: Red Hat Fuse 7Fixed in: fuse-ignite-meta-container
redhatno patchvia redhat_api
Product: Red Hat build of OpenJDK 11Fixed in: openjdk-11-ubi8-container
redhatno patchvia redhat_api
Product: Red Hat build of OpenJDK 1.8Fixed in: openjdk-8-ubi8-container
redhatno patchvia redhat_api
Product: Red Hat Fuse 7Fixed in: fuse-ignite-s2i-container
redhatno patchvia redhat_api
Product: Red Hat Fuse 7Fixed in: fuse-ignite-server-container
redhatno patchvia redhat_api
Product: Red Hat Fuse 7Fixed in: fuse-java-openshift-container
redhatno patchvia redhat_api
Product: Red Hat Fuse 7Fixed in: fuse-karaf-openshift-container
redhatno patchvia redhat_api
Product: Red Hat Fuse 7Fixed in: maven-core
redhatno patchvia redhat_api
Product: Red Hat Integration Camel Quarkus 1Fixed in: maven-core
redhatno patchvia redhat_api
Product: Red Hat JBoss Fuse 6Fixed in: jboss-fuse-6-fis-java-openshift
redhatno patchvia redhat_api
Product: Red Hat JBoss Fuse 6Fixed in: jboss-fuse-6-fis-karaf-openshift
redhatno patchvia redhat_api
Product: Red Hat OpenShift Container Platform 4Fixed in: jenkins-2-plugins
redhatno patchvia redhat_api
Product: Red Hat Process Automation 7Fixed in: rhpam-7-businesscentral-monitoring-rhel8-container
redhatend of lifevia redhat_api
Product: Red Hat build of OpenJDK 1.8Fixed in: redhat-openjdk-18-openjdk18-openshift
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: maven:3.5/maven
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: maven:3.6/maven
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: maven
redhatend of lifevia redhat_api
Product: Red Hat Software CollectionsFixed in: rh-maven36-maven
redhatend of lifevia redhat_api
Product: Red Hat build of OpenJDK 11Fixed in: openjdk-11-rhel7-container
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: javapackages-tools:201801/maven

Vendor Advisories (4)

mavenGHSA-2f88-5hg8-9x2xcritical

Origin Validation Error in Apache Maven

Jun 16, 2021
microsoft2021-May/CVE-2021-26291

CVE-2021-26291

May 11, 2021
redhatCVE-2021-26291Important

maven: Block repositories using http by default

Apr 23, 2021
microsoft2021-Apr/CVE-2021-26291Critical

block repositories using http by default

Apr 13, 2021

References

lists.apache.org / thread.html/r0556ce5db7231025785477739ee416b169d8aff5ee9bac7854d64736%40%3Cannounce.apache.org%3E
lists.apache.org / thread.html/r06db4057b74e0598a412734f693a34a8836ac6f06d16d139e5e1027c%40%3Cdev.maven.apache.org%3E
lists.apache.org / thread.html/r07a89b32783f73bda6903c1f9aadeb859e5bef0a4daed6d87db8e4a9%40%3Cissues.karaf.apache.org%3E
lists.apache.org / thread.html/r08a401f8c98a99f68d061fde6e6659d695f28d60fe4f0413bcb355b0%40%3Ccommits.druid.apache.org%3E
lists.apache.org / thread.html/r0a5e4ff2a7ca7ad8595d7683afbaeb3b8788ba974681907f97e7dc8e%40%3Cjira.kafka.apache.org%3E
lists.apache.org / thread.html/r0d083314aa3934dd4b6e6970d1f6ee50f6eaa9d867deb2cd96788478%40%3Cjira.kafka.apache.org%3E
lists.apache.org / thread.html/r167dbc42ef7c59802c2ca1ac14735ef9cf687c25208229993d6206fe%40%3Cissues.karaf.apache.org%3E
lists.apache.org / thread.html/r2721aba31a8562639c4b937150897e24f78f747cdbda8641c0f659fe%40%3Cusers.kafka.apache.org%3E
lists.apache.org / thread.html/r2ddabd06d94b60cfb0141e4abb23201c628ab925e30742f61a04d013%40%3Cissues.karaf.apache.org%3E
lists.apache.org / thread.html/r30a139c165b3da6e0d5536434ab1550534011b1fdfcd2f5d95892c5b%40%3Cissues.karaf.apache.org%3E
lists.apache.org / thread.html/r30e9fcba679d164158cc26236704c351954909c18cb2485d11038aa6%40%3Cdev.kafka.apache.org%3E
lists.apache.org / thread.html/r340e75c9bb6e8661b89e1cf2c52f4638a18312e57bd884722bc28f52%40%3Cjira.kafka.apache.org%3E
lists.apache.org / thread.html/r39fa6ec4b7e912d3e04ea68efd23e554ec9c8efa2c96f5b45104fc61%40%3Cjira.kafka.apache.org%3E
lists.apache.org / thread.html/r3f0450dcab7e63b5f233ccfbc6fca5f1867a75c8aa2493ea82732381%40%3Cdev.jena.apache.org%3E
lists.apache.org / thread.html/r4e1619cfefcd031fac62064a3858f5c9229eef907bd5d8ef14c594fc%40%3Cissues.karaf.apache.org%3E
lists.apache.org / thread.html/r52c6cda14dc6315dc79e72d30109f4589e9c6300ef6dc1a019da32d4%40%3Cissues.karaf.apache.org%3E
lists.apache.org / thread.html/r53cd5de57aaa126038c5301d8f518f3defab3c5b1c7e17c97bad08d8%40%3Cissues.karaf.apache.org%3E
lists.apache.org / thread.html/r5ae6aaa8a2ce86145225c3516bb45d315c0454e3765d651527e5df8a%40%3Ccommits.kafka.apache.org%3E
lists.apache.org / thread.html/r71bc13669be84c2ff45b74a67929bc2da905c152e12a39b406e3c2a0%40%3Cissues.karaf.apache.org%3E
lists.apache.org / thread.html/r7212b874e575e59d648980d91bc22e684906aee9b211ab92da9591f5%40%3Cdev.kafka.apache.org%3E
lists.apache.org / thread.html/r74329c671df713f61ae4620ee2452a0443ccad7f33c60e8ed7d21ff9%40%3Cissues.karaf.apache.org%3E
lists.apache.org / thread.html/r77af3ac7c3bfbd5454546e13faf7aec21d627bdcf36c9ca240436b94%40%3Cissues.karaf.apache.org%3E
lists.apache.org / thread.html/r78fb6d2cf0ca332cfa43abd4471e75fa6c517ed9cdfcb950bff48d40%40%3Cjira.kafka.apache.org%3E
lists.apache.org / thread.html/r86aebd0387ae19b740b3eb28bad83fe6aceca0d6257eaa810a6e0002%40%3Ccommits.kafka.apache.org%3E
lists.apache.org / thread.html/r86e1c81e03f441855f127980e9b3d41939d04a7caea2b7ab718e2288%40%3Cjira.kafka.apache.org%3E
lists.apache.org / thread.html/r96cc126d3ee9aa42af9d3bb4baa94828b0a5f656584a50dcc594125f%40%3Cissues.karaf.apache.org%3E
lists.apache.org / thread.html/r9a027668558264c4897633e66bcb7784099fdec9f9b22c38c2442f00%40%3Cusers.maven.apache.org%3E
Mailing ListVendor Advisory
lists.apache.org / thread.html/ra88a0eba7f84658cefcecc0143fd8bbad52c229ee5dfcbfdde7b6457%40%3Cdev.jena.apache.org%3E
lists.apache.org / thread.html/ra9d984eccfd2ae7726671e025f0296bf03786e5cdf872138110ac29b%40%3Ccommits.druid.apache.org%3E
lists.apache.org / thread.html/rc7ae2530063d1cd1cf8e9fa130d10940760f927168d4063d23b8cd0a%40%3Ccommits.kafka.apache.org%3E
lists.apache.org / thread.html/rc9e441c1576bdc4375d32526d5cf457226928e9c87b9f54ded26271c%40%3Cissues.karaf.apache.org%3E
lists.apache.org / thread.html/rcd37d9214b08067a2e8f2b5b4fd123a1f8cb6008698d11ef44028c21%40%3Cissues.karaf.apache.org%3E
lists.apache.org / thread.html/rcd6c3a36f1dbc130da1b89d0f320db7040de71661a512695a8d513ac%40%3Cdev.kafka.apache.org%3E
lists.apache.org / thread.html/rdcbad6d8ce72c79827ed8c635f9a62dd919bb21c94a0b64cab2efc31%40%3Cissues.karaf.apache.org%3E
lists.apache.org / thread.html/re75f8b3dbc5faa1640908f87e644d373e00f8b4e6ba3e2ba4bd2c80b%40%3Ccommits.druid.apache.org%3E
lists.apache.org / thread.html/red3bf6cbfd99e36b0c0a4fa1cea1eef1eb300c6bd8f372f497341265%40%3Cdev.kafka.apache.org%3E
lists.apache.org / thread.html/rf9abfc0223747a56694825c050cc6b66627a293a32ea926b3de22402%40%3Cissues.karaf.apache.org%3E
lists.apache.org / thread.html/rfc0db1f3c375087e69a239f9284ded72d04fbb55849eadde58fa9dc2%40%3Cissues.karaf.apache.org%3E
lists.apache.org / thread.html/rfc27e2727a20a574f39273e0432aa97486a332f9b3068f6ac1346594%40%3Cdev.myfaces.apache.org%3E
oracle.com / security-alerts/cpuapr2022.html
PatchThird Party Advisory
oracle.com / security-alerts/cpujul2022.html
whitesourcesoftware.com / resources/blog/maven-security-vulnerability-cve-2021-26291
ExploitThird Party Advisory
openwall.com / lists/oss-security/2021/04/23/5
Mailing ListThird Party Advisory