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CVE-2025-66559

Taiko Alethia is an Ethereum-equivalent, permissionless, based rollup designed to scale Ethereum without compromising its fundamental properties. In 2.3.1 and earlier, TaikoInbox._verifyBatches (packages/protocol/contracts/layer1/based/TaikoInbox.sol:627-678) advanced the local tid to whatever transition matched the current blockHash before knowing whether that batch would actually be verified. When the loop later broke (e.g., cooldown window not yet passed or transition invalidated), the functi
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:7b18c3277e819ea6b986bc09e24f02b51693d4527c92b29a9e83886672ca781b
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"taiko-mono","vendor":"taikoxyz","versions":[{"status":"affected","version":"<= 2.3.1"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:ad9869020814aefc206bf5157a6342aec87704c4623545bb41e9354d1e0cb4f9 · sha256:3978e32d593c50c8… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":8,"baseSeverity":"HIGH","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:ad9869020814aefc206bf5157a6342aec87704c4623545bb41e9354d1e0cb4f9 · sha256:3978e32d593c50c8… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion
{"cweId":"CWE-129","description":"CWE-129: Improper Validation of Array Index","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:ad9869020814aefc206bf5157a6342aec87704c4623545bb41e9354d1e0cb4f9 · sha256:3978e32d593c50c8… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions
{"name":"https://github.com/taikoxyz/taiko-mono/commit/379f5cb4ffe9e1945563ab2c7740bc9f4ea004d8","tags":["x_refsource_MISC"],"url":"https://github.com/taikoxyz/taiko-mono/commit/379f5cb4ffe9e1945563ab2c7740bc9f4ea004d8"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ad9869020814aefc206bf5157a6342aec87704c4623545bb41e9354d1e0cb4f9 · sha256:3978e32d593c50c8… · /containers/cna/references/1
{"name":"https://github.com/taikoxyz/taiko-mono/security/advisories/GHSA-5mxh-r33p-6h5x","tags":["x_refsource_CONFIRM"],"url":"https://github.com/taikoxyz/taiko-mono/security/advisories/GHSA-5mxh-r33p-6h5x"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ad9869020814aefc206bf5157a6342aec87704c4623545bb41e9354d1e0cb4f9 · sha256:3978e32d593c50c8… · /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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