CVE-2026-41584: ZEBRA is a Zcash node written entirely in Rust

Q: How do I fix CVE-2026-41584?

zebra-chain: upgrade to 6.0.2; zebrad: upgrade to 4.3.1. Exact commands for each OS are on this page.

Q: Is CVE-2026-41584 being exploited?

CVE-2026-41584 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-41584 affect?

CVE-2026-41584 affects zebra-chain, zebrad. Severity is high (CVSS 7.5). 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 s

Q: How urgent is CVE-2026-41584?

Priority 36/100. High severity; Remotely exploitable, no login, no user action

Routine

HIGH 7.5REMOTEUPGRADEUPGRADE

CVE-2026-41584 is a high-severity flaw (CVSS 7.5) affecting zebra-chain, zebrad. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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 sen

Why this priority

High severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.3% (top 81%)
CISA exploited list	No
Weakness	CWE-617
Published	2026-05-08
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: zfnd

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-05-08 15:16 UTCPublished CVE record published
2026-06-17 10:46 UTCUpdated Record last modified

zfnd zebra-chain UPGRADE

Affected: < 6.0.2

Fixed in: 6.0.2

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy zebra-chain || rpm -q zebra-chain || zebra-chain --version

2. UPGRADE to 6.0.2 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade zebra-chain

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade zebra-chain

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

zfnd zebrad UPGRADE

Affected: < 4.3.1

Fixed in: 4.3.1

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy zebrad || rpm -q zebrad || zebrad --version

2. UPGRADE to 4.3.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade zebrad

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade zebrad

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-41584?

zebra-chain: upgrade to 6.0.2; zebrad: upgrade to 4.3.1. Exact commands for each OS are on this page.

Is CVE-2026-41584 being exploited?

CVE-2026-41584 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-41584 affect?

CVE-2026-41584 affects zebra-chain, zebrad. Severity is high (CVSS 7.5). 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 s

How urgent is CVE-2026-41584?

Priority 36/100. High severity; Remotely exploitable, no login, no user action

Related CVEs

CVE-2026-44500 MEDIUM 5.3 UPGRADE UPGRADE ZEBRA is a Zcash node written entirely in Rust

References

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