{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-123557 in the wild and no public exploit code.","exposure":"","fix":"No fix has been published for CVE-2026-123557 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-123557 is a high-severity vulnerability in ZcashFoundation zebra, published on 8 Nov 2026."},"fix_prompt":"Check this codebase for CVE-2026-123557 and fix it if it is affected.\n\nWhat it is: CVE-2026-123557 is a high-severity vulnerability in ZcashFoundation zebra, published on 8 Nov 2026. \nExploitation: There is no known exploitation of CVE-2026-123557 in the wild and no public exploit code.\n\nAffected product: ZcashFoundation zebra. No package-level version data is available, so check the vendor advisory linked from the reference page.\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-2026-123557/ (Markdown: https://insights.sbomify.com/CVE-2026-123557/index.md)","id":"CVE-2026-123557","markdown":"https://insights.sbomify.com/CVE-2026-123557/index.md","name":"CVE-2026-123557","record":{"aliases":["GHSA-6v36-c42v-v98p","GHSA-cpwj-fm29-9h32"],"analysis":null,"analysis_generated_by":null,"assigner":"VulnCheck","cpe":[],"cvss":{"score":8.2,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-617","name":"Reachable Assertion"}],"description":"ZcashFoundation Zebra zebrad before 7.0.0 contains a reachable assertion race condition that allows unauthenticated remote peers to abort the node by triggering disconnection during a blocked outbound send. Malicious peers can return empty FindBlocks or FindHeaders replies and stop reading their socket, dropping an unresolved MustUseClientResponseSender and terminating syncing nodes.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"Zebra zebrad before 7.0.0 Reachable Assertion DoS via Peer Disconnection","id":"CVE-2026-123557","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":null,"year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"Zebra before 7.0.0 Checkpoint Sync Denial of Service via Cancelled Verifier Rewind","id":"CVE-2026-123558"},"nickname":null,"packages":[],"prev":{"headline":"Zebra 4.5.0 before 7.0.0 Honest Peer Ban via Mempool Lock-Time Scoring","id":"CVE-2026-123556"},"products":["zebra"],"published":"2026-11-08","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-11-10","vendors":["ZcashFoundation"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2026-123557/"}