CVE Explorer

CVE-2026-44498

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.

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:b4fed3dca9a0545c15605d68a00dbb4035ca43f8e6dbbf6d56d221e1d890c9af

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Affected products and versions

1 source assertion

{"product":"zebra","vendor":"ZcashFoundation","versions":[{"status":"affected","version":"< 4.4.0"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:27a861a391b199ad3b58ae161938566100ba62d17b78e24fcfcca2281e35f0d0 · sha256:71974451e4d772b0… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":9.2,"baseSeverity":"CRITICAL","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"HIGH","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:H/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"HIGH"},"metric_type":"cvssV4_0"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:27a861a391b199ad3b58ae161938566100ba62d17b78e24fcfcca2281e35f0d0 · sha256:71974451e4d772b0… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion

{"cweId":"CWE-682","description":"CWE-682: Incorrect Calculation","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:27a861a391b199ad3b58ae161938566100ba62d17b78e24fcfcca2281e35f0d0 · sha256:71974451e4d772b0… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions

{"name":"https://github.com/ZcashFoundation/zebra/releases/tag/v4.4.0","tags":["x_refsource_MISC"],"url":"https://github.com/ZcashFoundation/zebra/releases/tag/v4.4.0"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:27a861a391b199ad3b58ae161938566100ba62d17b78e24fcfcca2281e35f0d0 · sha256:71974451e4d772b0… · /containers/cna/references/1

{"name":"https://github.com/ZcashFoundation/zebra/security/advisories/GHSA-jv4h-j224-23cc","tags":["x_refsource_CONFIRM"],"url":"https://github.com/ZcashFoundation/zebra/security/advisories/GHSA-jv4h-j224-23cc"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:27a861a391b199ad3b58ae161938566100ba62d17b78e24fcfcca2281e35f0d0 · sha256:71974451e4d772b0… · /containers/cna/references/0

Attribution and limitations

CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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