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Zebra before 8.0.0 Denial of Service via z_listunifiedreceivers RPC

Type: advisorySource: Official CVE ListRisk context updated1 source record

ZcashFoundation Zebra zebra-rpc before 8.0.0 and zebrad before 4.5.0 contain a reachable assertion in the z_listunifiedreceivers RPC handler, which calls expect() on Sapling receiver parsing that fails for Unified Addresses carrying invalid Jubjub points. Authenticated RPC clients can submit such an address to abort the zebrad process, repeatably keeping the node offline.

Announced Source revision 2
Original source ↗
CVE context updated. The publisher announcement is unchanged.

CVE-2026-104434

Primary source · Revision 2

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-104434

zebra

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

zebra

Source reference: /containers/cna/affected/1/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "vendor": "ZcashFoundation",
    "product": "zebra",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "8.0.0",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "8.0.0",
        "versionType": "semver"
      }
    ],
    "packageURL": "pkg:cargo/zebra-rpc",
    "defaultStatus": "unaffected"
  },
  {
    "vendor": "ZcashFoundation",
    "product": "zebra",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "4.5.0",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "4.5.0",
        "versionType": "semver"
      }
    ],
    "packageURL": "pkg:cargo/zebrad",
    "defaultStatus": "unaffected"
  }
]
Related CVEs
CVE-2026-104434

Source reference: /cveMetadata/cveId

Publisher severity

high

Source reference: /containers/cna/metrics

Linked CVE context

These ratings describe the referenced vulnerabilities and products. They are not a severity rating for every application using this dependency.

CVE-2026-104434 · Medium

zebra-rpc, zebrad

Event
#72830 · Revision 2
Added to Heist Feed
Publisher date
Read the original announcement