CVE-2026-66256Apache Shindig Common, Apache Shindig Social-Api: Remote Code Execution via XStream deserialization (OpenSocial REST API)
Updated under an hour ago ()
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It affects Apache Software Foundation Apache Shindig Common and 2 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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** UNSUPPORTED WHEN ASSIGNED ** Deserialization of Untrusted Data vulnerability in Apache Shindig. This issue affects Apache Shindig: all versions. Users with access to the Shindig REST API can send specially-crafted requests to trigger arbitrary code execution on the server. As this project is retired, we do not plan to release a version that fixes this issue. Users are recommended to find an alternative or restrict access to the instance to trusted users. NOTE: This vulnerability only affects products that are no longer supported by the maintainer.
- CVSS
- 7.2 HIGH (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-502
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- apache
- NVD analysis
- Analyzed
- Record last updated
- Aug 13, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Apache Software Foundation Apache Shindig Common apache_software_foundation:apache_shindig_common (from the name) | all versions | CNA record |
Apache Software Foundation Apache Shindig Social-Api apache_software_foundation:apache_shindig_social_api (from the name) | all versions | CNA record |
apache shindig apache:shindig | through 3.0.0 | NVD |
References
- https://lists.apache.org/thread/opgpnhk149614gx6vcy3lvyjnycw8mkhvendor-advisory, mailing-list
- http://www.openwall.com/lists/oss-security/2026/08/13/7mailing-list, third-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.