https://cve.radiocsirt.org Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Sat, 03 Oct 2026 23:46:34 +0000 https://cve.radiocsirt.org/vuln/euvd-2026-160767 EUVD-2026-160767 https://cve.radiocsirt.org/vuln/euvd-2026-160767 https://cve.radiocsirt.org/vuln/fkie_cve-2023-46132 <p>Hyperledger Fabric is an open source permissioned distributed ledger framework. Combining two molecules to one another, called &#34;cross-linking&#34; results in a molecule with a chemical formula that is composed of all atoms of the original two molecules. In Fabric, one can take a block of transactions and cross-link the transactions in a way that alters the way the peers parse the transactions. If a first peer receives a block B and a second peer receives a block identical to B but with the transactions being cross-linked, the second peer will parse transactions in a different way and thus its world state will deviate from the first peer. Orderers or peers cannot detect that a block has its transactions cross-linked, because there is a vulnerability in the way Fabric hashes the transactions of blocks. It simply and naively concatenates them, which is insecure and lets an adversary craft a &#34;cross-linked block&#34; (block with cross-linked transactions) which alters the way peers process transactions. For example, it is possible to select a transaction and manipulate a peer to completely avoid processing it, without changing the computed hash of the block. Additional validations have been added in v2.2.14 and v2.5.5 to detect potential cross-linking issues before processing blocks. Users are advised to upgrade. There are no known workarounds for this vulnerability.</p> <p>Hyperledger Fabric is an open source permissioned distributed ledger framework. Combining two molecules to one another, called &#34;cross-linking&#34; results in a molecule with a chemical formula that is composed of all atoms of the original two molecules. In Fabric, one can take a block of transactions and cross-link the transactions in a way that alters the way the peers parse the transactions. If a first peer receives a block B and a second peer receives a block identical to B but with the transactions being cross-linked, the second peer will parse transactions in a different way and thus its world state will deviate from the first peer. Orderers or peers cannot detect that a block has its transactions cross-linked, because there is a vulnerability in the way Fabric hashes the transactions of blocks. It simply and naively concatenates them, which is insecure and lets an adversary craft a &#34;cross-linked block&#34; (block with cross-linked transactions) which alters the way peers process transactions. For example, it is possible to select a transaction and manipulate a peer to completely avoid processing it, without changing the computed hash of the block. Additional validations have been added in v2.2.14 and v2.5.5 to detect potential cross-linking issues before processing blocks. Users are advised to upgrade. There are no known workarounds for this vulnerability.</p> https://cve.radiocsirt.org/vuln/fkie_cve-2023-46132 https://cve.radiocsirt.org/vuln/ghsa-v9w2-543f-h69m <p><strong>Affected:</strong> Go: github.com/hyperledger/fabric</p> <p># Short summary</p> <p>Combining two molecules to one another, called &#34;cross-linking&#34; results in a molecule with a chemical formula that is composed of all atoms of the original two molecules.</p> <p>In Fabric, one can take a block of transactions and cross-link the transactions in a way that alters the way the peers parse the transactions. If a first peer receives a block `B` and a second peer receives a block identical to `B` but with the transactions being cross-linked, the second peer will parse transactions in a different way and thus its world state will deviate from the first peer.</p> <p>Orderers or peers cannot detect that a block has its transactions cross-linked, because there is a vulnerability in the way Fabric hashes the transactions of blocks. It simply and naively concatenates them, which is insecure and lets an adversary craft a &#34;cross-linked block&#34; (block with cross-linked transactions) which alters the way peers process transactions. For example, it is possible to select a transaction and manipulate a peer to completely avoid processing it, without changing the computed hash of the block.</p> <p>Additional validations have been added in v2.2.14 and v2.5.5 to detect potential cross-linking issues before processing blocks.</p> <p>## Impact In V1 and V2, we only have a crash fault tolerant orderer and as such, the security model Fabric operates in is that the orderer is honest, but peers may be malicious. As such, a peer that replicates a block from a malicious peer can have a state fo…</p> <p><strong>Affected:</strong> Go: github.com/hyperledger/fabric</p> <p># Short summary</p> <p>Combining two molecules to one another, called &#34;cross-linking&#34; results in a molecule with a chemical formula that is composed of all atoms of the original two molecules.</p> <p>In Fabric, one can take a block of transactions and cross-link the transactions in a way that alters the way the peers parse the transactions. If a first peer receives a block `B` and a second peer receives a block identical to `B` but with the transactions being cross-linked, the second peer will parse transactions in a different way and thus its world state will deviate from the first peer.</p> <p>Orderers or peers cannot detect that a block has its transactions cross-linked, because there is a vulnerability in the way Fabric hashes the transactions of blocks. It simply and naively concatenates them, which is insecure and lets an adversary craft a &#34;cross-linked block&#34; (block with cross-linked transactions) which alters the way peers process transactions. For example, it is possible to select a transaction and manipulate a peer to completely avoid processing it, without changing the computed hash of the block.</p> <p>Additional validations have been added in v2.2.14 and v2.5.5 to detect potential cross-linking issues before processing blocks.</p> <p>## Impact In V1 and V2, we only have a crash fault tolerant orderer and as such, the security model Fabric operates in is that the orderer is honest, but peers may be malicious. As such, a peer that replicates a block from a malicious peer can have a state fo…</p> https://cve.radiocsirt.org/vuln/ghsa-v9w2-543f-h69m https://cve.radiocsirt.org/vuln/gsd-2023-46132 gsd-2023-46132 https://cve.radiocsirt.org/vuln/gsd-2023-46132