CRITICAL
ObjectInputStream.readObject() without ObjectInputFilter in fabric-sdk-java allows Java deserialization RCE
Published May 7, 2026
9.3
CRITICALCVSS 4.0
EPSS 0.63%
Description
Hyperledger Fabric is an enterprise-grade permissioned distributed ledger framework for developing solutions and applications. From versions 1.0.0 to 2.2.26, Channel.java implements readObject() and exposes deSerializeChannel() which call ObjectInputStream.readObject() on untrusted byte arrays without configuring an ObjectInputFilter. This is a classic Java deserialization RCE pattern. At time of publication, there are no publicly available patches.
Affected products
-
- Version >= 1.0.0, <= 2.2.26StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Hyperledger | Fabric | n/a |
|
- ≥ 1.0.0 · ≤ 2.2.26
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Weaknesses (1)
References (5)
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-28316 Advisory
- https://github.com/advisories/GHSA-prf8-cf2x-rhx7 Advisory
- https://github.com/hyperledger/fabric/security/advisories/GHSA-prf8-cf2x-rhx7 exploitx_refsource_CONFIRMMitigationVendor Advisory
- https://hyperledger.github.io/fabric-gateway x_refsource_MISCProduct
- https://nvd.nist.gov/vuln/detail/CVE-2026-41586
| Link | Providers | Tags |
|---|---|---|
| https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-28316 | Advisory | |
| https://github.com/advisories/GHSA-prf8-cf2x-rhx7 | Advisory | |
| https://github.com/hyperledger/fabric/security/advisories/GHSA-prf8-cf2x-rhx7 | exploitx_refsource_CONFIRMMitigationVendor Advisory | |
| https://hyperledger.github.io/fabric-gateway | x_refsource_MISCProduct | |
| https://nvd.nist.gov/vuln/detail/CVE-2026-41586 |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner GitHub_M
Published May 7, 2026
Updated May 7, 2026
Reserved Apr 21, 2026
Link CVE-2026-41586
CISA Vulnrichment
Updated May 7, 2026
ENISA EUVD
EUVD-2026-28316 GHSA-PRF8-CF2X-RHX7 Assigner GitHub_M
Published May 7, 2026
Updated May 7, 2026
Exploited since n/a
Link EUVD-2026-28316