How severe is CVE-2026-41584?

CVE-2026-41584 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2026-41584 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (18th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-41584?

CVE-2026-41584 primarily affects Zfnd Zebra-chain. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2026-41584?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-41584 have an EU (EUVD) identifier?

Yes. CVE-2026-41584 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-28654.

When was CVE-2026-41584 published?

CVE-2026-41584 was published on 2026-05-08 and last updated on 2026-06-17.

CVE-2026-41584

CVE-2026-41584 is a high-severity vulnerability in Zfnd Zebra-chain with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-617.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v4: 9.2
EPSS exploit prediction: 0% (18th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-28654
Weakness: CWE-617
Affected product: Zfnd Zebra-chain
Published: 2026-05-08
Last modified: 2026-06-17

Description

ZEBRA is a Zcash node written entirely in Rust. Prior to zebrad version 4.3.1 and prior to zebra-chain version 6.0.2, Orchard transactions contain a rk field which is a randomized validating key and also an elliptic curve point. The Zcash specification allows the field to be the identity (a "zero" value), however, the orchard crate which is used to verify Orchard proofs would panic when fed a rk with the identity value. Thus an attacker could send a crafted transaction that would make a Zebra node crash. This issue has been patched in zebrad version 4.3.1 and zebra-chain version 6.0.2.

Frequently asked questions

What is CVE-2026-41584?: ZEBRA is a Zcash node written entirely in Rust. Prior to zebrad version 4.3.1 and prior to zebra-chain version 6.0.2, Orchard transactions contain a rk field which is a randomized validating key and also an elliptic curve point. The Zcash specification allows the field to be the identity (a "zero" value), however, the orchard crate which is used to verify Orchard proofs would panic when fed a rk with the identity value. Thus an attacker could send a crafted transaction that would make a Zebra node crash. This issue has been patched in zebrad version 4.3.1 and zebra-chain version 6.0.2.
How severe is CVE-2026-41584?: CVE-2026-41584 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2026-41584 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (18th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-41584?: CVE-2026-41584 primarily affects Zfnd Zebra-chain. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2026-41584?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-41584 have an EU (EUVD) identifier?: Yes. CVE-2026-41584 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-28654.
When was CVE-2026-41584 published?: CVE-2026-41584 was published on 2026-05-08 and last updated on 2026-06-17.

References

https://github.com/ZcashFoundation/zebra/security/advisories/GHSA-452v-w3gx-72wg

Affected products (2)

cpe:2.3:a:zfnd:zebra-chain:*:*:*:*:*:rust:*:*
cpe:2.3:a:zfnd:zebrad:*:*:*:*:*:rust:*:*

More vulnerabilities in Zfnd Zebra-chain

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