CRITICAL🇵🇱 Wersja polska

CVE-2026-44497

CVSS 9.3v4.0pub. 2026-05-08

ZEBRA is a Zcash node written entirely in Rust. Prior to zebrad version 4.4.0 and prior to zebra-script version 6.0.0, the fix for CVE-2026-41583 introduced a separate issue due to insufficient error handling of the case where the sighash type is invalid, during sighash computation. Instead of returning an error, the normal flow would resume, and the input sighash buffer would be left untouched. In scenarios where a previous signature validation could leave a valid sighash in the buffer, an invalid hash-type could be incorrectly accepted, which would create a consensus split between Zebra and zcashd nodes. This issue has been patched in zebrad version 4.4.0 and zebra-script version 6.0.0.

CVSS Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

  • Zfnd Zebrad

    APP
    Zfnd
    < 4.4.0

  • Zfnd Zebra Script

    APP
    Zfnd
    < 6.0.0
🔵
CHECK WITH VENDOR
No clear patch data available. Check vendor references.
CWE
References

Related vulnerabilities

CVE-2026-41584CRITICAL9.2PL ✓ten sam produkt

Crash węzła Zebra (Zcash) przez pole rk z wartością tożsamości w transakcjach Orchard

CVE-2026-41583CRITICAL9.3PL ✓ten sam produkt

Błąd walidacji sighash w Zebra — możliwy consensus split z zcashd

CVE-2026-44498CRITICAL9.2PL ✓ten sam produkt

Błędne zliczanie sigops w Zebra powoduje split sieci Zcash

CVE-2026-40880HIGH7.2ten sam produkt

ZEBRA is a Zcash node written entirely in Rust. Prior to zebrad version 4.3.1 and zebra-consensus version 5.0....

CVE-2026-41585MEDIUM6.9ten sam produkt

ZEBRA is a Zcash node written entirely in Rust. From zebrad versions 2.2.0 to before 4.3.1 and from zebra-rpc ...