GHSA-j99g-7rqw-q9jg

Source

https://github.com/advisories/GHSA-j99g-7rqw-q9jg

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/04/GHSA-j99g-7rqw-q9jg/GHSA-j99g-7rqw-q9jg.json

JSON Data

https://api.osv.dev/v1/vulns/GHSA-j99g-7rqw-q9jg

Aliases

CVE-2026-34066

Published

2026-04-22T19:23:55Z

Modified

2026-05-05T16:10:37Z

Severity

5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H CVSS Calculator

Summary

nimiq-blockchain: Peer-triggerable panic during history sync

Details

Impact

HistoryStore::put_historic_txns uses an assert! to enforce invariants about HistoricTransaction.block_number (must be within the macro block being pushed and within the same epoch). During history sync, a peer can influence the history: &[HistoricTransaction] input passed into Blockchain::push_history_sync, and a malformed history list can violate these invariants and trigger a panic.

extend_history_sync calls this.history_store.add_to_history(..) before comparing the computed history root against the macro block header (block.history_root()), so the panic can happen before later rejection checks run.

Patches

The patch for this vulnerability is included as part of v1.3.0.

Workarounds

No known workarounds.

Database specific

{
    "cwe_ids":  [
        "CWE-20",
        "CWE-617",
        "CWE-754"
    ],
    "github_reviewed":  true,
    "github_reviewed_at":  "2026-04-22T19:23:55Z",
    "nvd_published_at":  "2026-04-22T20:16:41Z",
    "severity":  "MODERATE"
}

References

Affected packages

crates.io / nimiq-blockchain

Package

Name: nimiq-blockchain; View open source insights on deps.dev
Purl: pkg:cargo/nimiq-blockchain

Affected ranges

Type: SEMVER
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Last Affected

0.2.0

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/04/GHSA-j99g-7rqw-q9jg/GHSA-j99g-7rqw-q9jg.json"