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CVE-2026-34202

ZEBRA is a Zcash node written entirely in Rust. Prior to zebrad version 4.3.0 and zebra-chain version 6.0.1, a vulnerability in Zebra's transaction processing logic allows a remote, unauthenticated attacker to cause a Zebra node to panic (crash). This is triggered by sending a specially crafted V5 transaction that passes initial deserialization but fails during transaction ID calculation. This issue has been patched in zebrad version 4.3.0 and zebra-chain version 6.0.1.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:9341b7b8a0fe81338146931b1fd92ded9209d563e49aea886c1f4e0280af7075
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
2

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"product":"zebra-chain","vendor":"ZcashFoundation","versions":[{"status":"affected","version":"< 6.0.1"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:7105e86561f7164d2c59576e9643863e4b4d9d6f2ce1a1d2fb3914c4edd6dbca · sha256:eceeb887345c22ab… · /containers/cna/affected/1

{"product":"zebra","vendor":"ZcashFoundation","versions":[{"status":"affected","version":"< 4.3.0"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:7105e86561f7164d2c59576e9643863e4b4d9d6f2ce1a1d2fb3914c4edd6dbca · sha256:eceeb887345c22ab… · /containers/cna/affected/0
cwe · 2 assertions

{"cweId":"CWE-1336","description":"CWE-1336: Improper Neutralization of Special Elements Used in a Template Engine","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:7105e86561f7164d2c59576e9643863e4b4d9d6f2ce1a1d2fb3914c4edd6dbca · sha256:eceeb887345c22ab… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-94","description":"CWE-94: Improper Control of Generation of Code ('Code Injection')","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:7105e86561f7164d2c59576e9643863e4b4d9d6f2ce1a1d2fb3914c4edd6dbca · sha256:eceeb887345c22ab… · /containers/cna/problemTypes/1/descriptions/0

Affected products and versions

2 source assertions
{"product":"zebra-chain","vendor":"ZcashFoundation","versions":[{"status":"affected","version":"< 6.0.1"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:7105e86561f7164d2c59576e9643863e4b4d9d6f2ce1a1d2fb3914c4edd6dbca · sha256:eceeb887345c22ab… · /containers/cna/affected/1
{"product":"zebra","vendor":"ZcashFoundation","versions":[{"status":"affected","version":"< 4.3.0"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:7105e86561f7164d2c59576e9643863e4b4d9d6f2ce1a1d2fb3914c4edd6dbca · sha256:eceeb887345c22ab… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":9.2,"baseSeverity":"CRITICAL","privilegesRequired":"NONE","subAvailabilityImpact":"HIGH","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:7105e86561f7164d2c59576e9643863e4b4d9d6f2ce1a1d2fb3914c4edd6dbca · sha256:eceeb887345c22ab… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

2 source assertions
{"cweId":"CWE-1336","description":"CWE-1336: Improper Neutralization of Special Elements Used in a Template Engine","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:7105e86561f7164d2c59576e9643863e4b4d9d6f2ce1a1d2fb3914c4edd6dbca · sha256:eceeb887345c22ab… · /containers/cna/problemTypes/0/descriptions/0
{"cweId":"CWE-94","description":"CWE-94: Improper Control of Generation of Code ('Code Injection')","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:7105e86561f7164d2c59576e9643863e4b4d9d6f2ce1a1d2fb3914c4edd6dbca · sha256:eceeb887345c22ab… · /containers/cna/problemTypes/1/descriptions/0

Source references

3 source assertions
{"name":"https://github.com/ZcashFoundation/zebra/releases/tag/v4.3.0","tags":["x_refsource_MISC"],"url":"https://github.com/ZcashFoundation/zebra/releases/tag/v4.3.0"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:7105e86561f7164d2c59576e9643863e4b4d9d6f2ce1a1d2fb3914c4edd6dbca · sha256:eceeb887345c22ab… · /containers/cna/references/1
{"name":"https://github.com/ZcashFoundation/zebra/security/advisories/GHSA-qp6f-w4r3-h8wg","tags":["x_refsource_CONFIRM"],"url":"https://github.com/ZcashFoundation/zebra/security/advisories/GHSA-qp6f-w4r3-h8wg"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:7105e86561f7164d2c59576e9643863e4b4d9d6f2ce1a1d2fb3914c4edd6dbca · sha256:eceeb887345c22ab… · /containers/cna/references/0
{"name":"https://zfnd.org/zebra-4-3-0-critical-security-fixes-zip-235-support-and-performance-improvements","tags":["x_refsource_MISC"],"url":"https://zfnd.org/zebra-4-3-0-critical-security-fixes-zip-235-support-and-performance-improvements"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:7105e86561f7164d2c59576e9643863e4b4d9d6f2ce1a1d2fb3914c4edd6dbca · sha256:eceeb887345c22ab… · /containers/cna/references/2

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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