CVE-2021-26295: RCE vulnerability in latest Apache OFBiz due to Java serialisation using RMI
- Is it exploited?
Reported, not confirmed by CISA. VulnCheck KEV lists it as exploited in the wild. CISA has not added it to its Known Exploited Vulnerabilities catalog as of .
VulnCheck KEV lists it since . It cites 751 public reports, the first from .
- How likely is exploitation in the next 30 days?
- 97.8%
EPSS score, percentile 99.9 of all scored records. A probability estimated by FIRST, not a report of exploitation.
- How severe?
- Not scored
The CVE record carries no CVSS score.
- What should I do?
CISA has set no required action, because the vulnerability is not in KEV.
The CVE record links no vendor advisory, patch or mitigation.
- Which versions are affected?
Affected
- Apache OFBiz 17.12.01 to 17.12.05
Source: CISA KEV 2026.10.29, as of ; VulnCheck KEV, as of ; FIRST EPSS, as of ; CVE List, as of . About the data.
Description
RCE vulnerability in latest Apache OFBiz due to Java serialisation using RMI
Apache OFBiz has unsafe deserialization prior to 17.12.06. An unauthenticated attacker can use this vulnerability to successfully take over Apache OFBiz.
Source: CVE List, as of . About the data.
What to do
Advisories and patches
The CVE record links no vendor advisory, patch or mitigation.
Workaround (from the CVE record)
Upgrade to at least 17.12.06 or apply the patch at https://github.com/apache/ofbiz-framework/commit/af9ed4e/
This summary is based on the CVE record as of . Check the vendor's advisory before you act: affected versions and fixes can change.
Affected products and versions
Versions by product, as listed in the CVE record (1 product)
| Status | Versions |
|---|---|
| Affected | Apache OFBiz 17.12.01 to 17.12.05 |
Source: CVE List, as of . About the data.
Timeline
| Date | Event |
|---|---|
| CVE record published | |
| CVE record last updated |
References
13
- lists.apache.org
- [ofbiz-notifications] 20210324 [jira] [Commented] (OFBIZ-12167) Adds a blacklist (to be renamed soon to denylist) in Java serialisation (CVE-2021-26295)
- [ofbiz-dev] 20210325 Comment out the SOAP and HTTP engines?
- [ofbiz-dev] 20210325 Re: Comment out the SOAP and HTTP engines?
- [ofbiz-dev] 20210329 Re: Comment out the SOAP and HTTP engines?
- [ofbiz-notifications] 20210329 [jira] [Commented] (OFBIZ-12167) Adds a blacklist (to be renamed soon to denylist) in Java serialisation (CVE-2021-26295)
- [ofbiz-notifications] 20210329 [jira] [Commented] (OFBIZ-6942) Comment out RMI related code because of the Java deserialization issue [CVE-2016-2170]
- packetstormsecurity.com
- [ofbiz-notifications] 20210427 [jira] [Updated] (OFBIZ-12212) Comment out the SOAP and HTTP engines - Fix [CVE-2021-30128]
- [ofbiz-commits] 20210427 [ofbiz-site] branch master updated: Updates security page for CVE-2021-29200 and 30128 fixed in 17.12.07
- [ofbiz-notifications] 20210605 [jira] [Updated] (OFBIZ-12212) Comment out the SOAP and HTTP engines - Fix [CVE-2021-30128]
- [ofbiz-notifications] 20210729 [jira] [Updated] (OFBIZ-12212) Comment out the SOAP and HTTP engines - Fix [CVE-2021-30128]
1 more in the CVE record.
Known exploited Apache vulnerabilities
- CVE-2016-3081: Apache Struts Command Injection Vulnerability
- CVE-2026-34486: Apache Tomcat Missing Encryption of Sensitive Data Vulnerability
- CVE-2026-34197: Apache ActiveMQ Improper Input Validation Vulnerability
- CVE-2024-38475: Apache HTTP Server Improper Escaping of Output Vulnerability
- CVE-2025-24813: Apache Tomcat Path Equivalence Vulnerability