{"answers":{"affected":"6 open source packages ship an affected version, including zebra-chain, zebra-network and zebrad. It affects 3 products.","exploited":"There is no known exploitation of CVE-2026-44500 in the wild and no public exploit code.","fix":"Upgrade zebra-chain to 7.0.0 or later.","what":"CVE-2026-44500 is a medium-severity denial of service vulnerability in ZcashFoundation zebra, published on 8 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-44500 and fix it if it is affected.\n\nWhat it is: CVE-2026-44500 is a medium-severity denial of service vulnerability in ZcashFoundation zebra, published on 8 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-44500 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- zebra-chain (crates.io): affected all versions; fixed in 7.0.0\n- zebra-chain (crates.io): affected all versions; fixed in 7.0.0\n- zebra-network (crates.io): affected all versions; fixed in 6.0.0\n- zebra-network (crates.io): affected all versions; fixed in 6.0.0\n- zebrad (crates.io): affected all versions; fixed in 4.4.0\n- zebrad (crates.io): affected all versions; fixed in 4.4.0\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-44500/ (Markdown: https://insights.sbomify.com/CVE-2026-44500/index.md)","id":"CVE-2026-44500","markdown":"https://insights.sbomify.com/CVE-2026-44500/index.md","name":"CVE-2026-44500","record":{"aliases":["GHSA-438q-jx8f-cccv"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Zcash node","requires_auth":"none","summary":"An attacker can cause a Zcash node to crash or become unresponsive by forcing excessive memory allocation during network deserialization.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"zebra-chain","vendor":"zfnd"},{"product":"zebra-network","vendor":"zfnd"},{"product":"zebrad","vendor":"zfnd"}],"cvss":{"score":5.3,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","version":"3.1"},"cwes":[{"id":"CWE-770","name":"Allocation of Resources Without Limits or Throttling"}],"description":"ZEBRA is a Zcash node written entirely in Rust. Prior to zebrad version 4.4.0, prior to zebra-chain version 7.0.0, and prior to zebra-network version 6.0.0, several inbound deserialization paths in Zebra allocated buffers sized against generic transport or block-size ceilings before the tighter protocol or consensus limits were enforced. An unauthenticated or post-handshake peer could therefore force the node to preallocate and parse for orders of magnitude more data than the protocol intended, across headers messages, equihash solutions in block headers, Sapling spend vectors in V5/V4 transactions, and coinbase script bytes in blocks. This issue has been patched in zebrad version 4.4.0, zebra-chain version 7.0.0, and zebra-network version 6.0.0.","ecosystems":["crates.io"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"ZEBRA: Allocation Amplification in Inbound Network Deserializers","id":"CVE-2026-44500","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"crates.io","product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":6,"n_references":1,"next":{"headline":"DataHub OIDC REDIRECT_URL Cookie Deserialization Vulnerability","id":"CVE-2026-44501"},"packages":[{"ecosystem":"crates.io","fixed":["7.0.0"],"introduced":["0"],"last_affected":[],"package":"zebra-chain","purl":null,"source":"GHSA-438q-jx8f-cccv"},{"ecosystem":"crates.io","fixed":["7.0.0"],"introduced":["0"],"last_affected":[],"package":"zebra-chain","purl":"pkg:cargo/zebra-chain","source":"GHSA-438q-jx8f-cccv"},{"ecosystem":"crates.io","fixed":["6.0.0"],"introduced":["0"],"last_affected":[],"package":"zebra-network","purl":null,"source":"GHSA-438q-jx8f-cccv"},{"ecosystem":"crates.io","fixed":["6.0.0"],"introduced":["0"],"last_affected":[],"package":"zebra-network","purl":"pkg:cargo/zebra-network","source":"GHSA-438q-jx8f-cccv"},{"ecosystem":"crates.io","fixed":["4.4.0"],"introduced":["0"],"last_affected":[],"package":"zebrad","purl":null,"source":"GHSA-438q-jx8f-cccv"},{"ecosystem":"crates.io","fixed":["4.4.0"],"introduced":["0"],"last_affected":[],"package":"zebrad","purl":"pkg:cargo/zebrad","source":"GHSA-438q-jx8f-cccv"}],"prev":{"headline":"ZEBRA: Permanent Block Discovery Halt via Gossip Queue Saturation and Syncer Poisoning","id":"CVE-2026-44499"},"products":["zebra"],"published":"2026-05-08","related":[{"cvss_score":9.2,"headline":"ZEBRA: rk Identity Point Panic in Transaction Verification","id":"CVE-2026-41584","kev_date_added":null,"published":"2026-05-08"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-05-08","vendors":["ZcashFoundation"]},"summary":"An attacker can cause a Zcash node to crash or become unresponsive by forcing excessive memory allocation during network deserialization.","url":"https://insights.sbomify.com/CVE-2026-44500/"}