Is CVE-2026-41583 in the CISA KEV catalog?

No. CVE-2026-41583 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-41583?

CVE-2026-41583 has a CVSS v3 base score of 9.1 (CRITICAL).

What is the EPSS score for CVE-2026-41583?

CVE-2026-41583 has an EPSS score of 0.28% (20th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-41583?

Upgrade zebra-script to 5.0.2 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2026-41583

CRITICAL

9.1

CVSS v3

NVD

Description

ZEBRA is a Zcash node written entirely in Rust. Prior to zebrad version 4.3.1 and prior to zebra-script version 5.0.2, after a refactoring, Zebra failed to validate a consensus rule that restricted the possible values of sighash hash types for V5 transactions which were enabled in the NU5 network upgrade. Zebra nodes could thus accept and eventually mine a block that would be considered invalid by zcashd nodes, creating a consensus split between Zebra and zcashd nodes. In a similar vein, for V4 transactions, Zebra mistakenly used the "canonical" hash type when computing the sighash while zcashd (correctly per the spec) uses the raw value, which could also crate a consensus split. This issue has been patched in zebrad version 4.3.1 and zebra-script version 5.0.2.

CWE-573

How to fix

Remediation Available

zebra-scriptNVD

Affected:< 5.0.2Fixed in:5.0.2CVE-2026-41583derived from NVD

zebradNVD

Affected:< 4.3.1Fixed in:4.3.1CVE-2026-41583derived from NVD

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

Exploit Intelligence

0.28%probability of exploitation in 30 days

20thpercentile

Low risk: more likely to be exploited than 20% of all known CVEs.

References

Vendor Advisory1

github.com

Related Vulnerabilities

Other CWE-573 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2019-14829	Medium	4.3	0.7%	-	-
CVE-2025-21601	High	7.5	0.4%	-	-
CVE-2025-69287	Medium	5.4	0.3%	-	-
CVE-2025-69202	Medium	6.5	0.3%	-	Fix
CVE-2026-28498	High	7.5	0.2%	-	Fix
CVE-2026-59998	Medium	4.8	0.2%	-	Fix

Embed a live status badge for CVE-2026-41583

Markdown

[![CVE-2026-41583](https://tridentstack.com/cve/badge/CVE-2026-41583.svg)](https://tridentstack.com/cve/CVE-2026-41583)

HTML

<a href="https://tridentstack.com/cve/CVE-2026-41583"><img src="https://tridentstack.com/cve/badge/CVE-2026-41583.svg" alt="CVE-2026-41583"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

See how it works Start freeThis CVE lookup is free and always will be.

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-08.