CVE-2021-26295: RCE vulnerability in latest Apache OFBiz due to Java serialisation using RMI

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 97.8% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2021-03-22 · updated 2026-06-17
Weakness: CWE-502

Description

Apache OFBiz has unsafe deserialization prior to 17.12.06. An unauthenticated attacker can use this vulnerability to successfully take over Apache OFBiz.

Affected products

Apache Software Foundation Apache OFBiz: before 17.12.06 — fixed in 17.12.06

How to fix

Upgrade to a fixed version: Apache Software Foundation Apache OFBiz 17.12.06. Check the vendor advisory for mitigations.

References

http://packetstormsecurity.com/files/162104/Apache-OFBiz-SOAP-Java-Deserialization.html
https://lists.apache.org/thread.html/r078351a876ed284ba667b33aba29428d7308a5bd4df78f14a3df6661%40%3Cnotifications.ofbiz.apache.org%3E
https://lists.apache.org/thread.html/r0d97a3b7a14777b9e9e085b483629d2774343c4723236d1c73f43ff0%40%3Cdev.ofbiz.apache.org%3E
https://lists.apache.org/thread.html/r108a964764b8bd21ebd32ccd4f51c183ee80a251c105b849154a8e9d%40%3Ccommits.ofbiz.apache.org%3E
https://lists.apache.org/thread.html/r3c1802eaf34aa78a61b4e8e044c214bc94accbd28a11f3a276586a31%40%3Cuser.ofbiz.apache.org%3E
https://lists.apache.org/thread.html/r3ee005dd767cd83f522719423f5e7dd316f168ddbd1dc51a13d4e244%40%3Cnotifications.ofbiz.apache.org%3E
https://lists.apache.org/thread.html/r6e4579c4ebf7efeb462962e359501c6ca4045687f12212551df2d607%40%3Cnotifications.ofbiz.apache.org%3E
https://lists.apache.org/thread.html/rab718cfe6468085d7560c0c1ae816841e175886199f42e36efb8d735%40%3Cnotifications.ofbiz.apache.org%3E
https://lists.apache.org/thread.html/rbe512e5ccd6b11169c6379daa1234bc805f3d53c5a38224e956295ce%40%3Cnotifications.ofbiz.apache.org%3E
https://lists.apache.org/thread.html/rbe8439b26a71fc3b429aa793c65dcc4a6e349bc7bb5010746a74fa1d%40%3Ccommits.ofbiz.apache.org%3E
https://lists.apache.org/thread.html/rc9bd0d3d794dc370bc70585960841868cb29b92dcc80552b84ca2599%40%3Cnotifications.ofbiz.apache.org%3E
https://lists.apache.org/thread.html/rec5e9fdcdca13099cfb29f632333f44ad1dd60d90f67b90434e4467a%40%3Cdev.ofbiz.apache.org%3E

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