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Vulnerabilities

Vulnerability · CVE-2026-34202

ZEBRA is a Zcash node written entirely in Rust.

Published Mar 31, 2026 · catalog updated Jul 24, 2026 · ZEBRA is a Zcash

Check if you run it

No confirmed exploitation is on record for CVE-2026-34202. EPSS is 0.93%. Act only if a listed version of ZEBRA is a Zcash is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (ZEBRA is a Zcash).
  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Critical9.2
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.93%
Remediation
Advisory link
Affected products
cpe zfnd/zebra · cpe zfnd/zebra-chain

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe zfnd/zebraversion unspecified
  • cpe zfnd/zebra-chainversion unspecified

How to fix CVE-2026-34202

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-34202. EPSS is 0.93%. Act only if a listed version of ZEBRA is a Zcash is installed.

Which versions are affected?

Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-1336: Improper Neutralization of Special Elements Used in a Template Engine; CWE-502: Deserialization of Untrusted Data; CWE-94: Code Injection. EPSS 0.93%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Mar 31, 2026 · NIST NVD

    Detected

    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 iss

  2. Jul 24, 2026 · NIST NVD

    Updated

    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 iss

Sources

  • CVE.orgVulnerability recordCVE-2026-34202

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-34202

    30-day exploitation probability 0.9%

    first.org
  • NIST NVDVulnerability recordCVE-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 sp

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.