CVE-2026-44498
7.5 · HIGHOverview
CVE-2026-44498 is a high-severity vulnerability affecting zfnd zebrad. It was published on May 8, 2026 and has a CVSS 3.1 base score of 7.5 (HIGH).
This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
ZEBRA is a Zcash node written entirely in Rust. Prior to version 4.4.0, Zebra's block validator undercounts transparent signature operations against the 20000-sigop block limit (MAX_BLOCK_SIGOPS), allowing it to accept blocks that zcashd rejects with bad-blk-sigops. A miner who produces such a block can split the network: Zebra nodes follow the offending chain while zcashd nodes do not. This issue has been patched in version 4.4.0.
Remediation
Check the references section for vendor advisories and patches from zfnd. Update zebrad to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| zfnd | zebrad | >= 0, < 4.4.0 | Affected |
Frequently Asked Questions
What is CVE-2026-44498?
CVE-2026-44498 is a high-severity vulnerability affecting zfnd zebrad. It was published on May 8, 2026 and has a CVSS 3.1 base score of 7.5 (HIGH).
How severe is CVE-2026-44498?
This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2026-44498?
Check the references section for vendor advisories and patches from zfnd. Update zebrad to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2026-44498?
CyberStrike's AI-powered security agents can automatically detect CVE-2026-44498 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
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