nimiq/core-rs-albatross: Panic in history index request handlers when a full node runs without the history index

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Summary

CVECVE-2026-35468
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-04-03 23:17:06 UTC
Updated2026-04-03 23:17:06 UTC
Descriptionnimiq/core-rs-albatross is a Rust implementation of the Nimiq Proof-of-Stake protocol based on the Albatross consensus algorithm. Prior to version 1.3.0, two peer-facing consensus request handlers assume that the history index is always available and call blockchain.history_store.history_index().unwrap() directly. That assumption is false by construction. HistoryStoreProxy::history_index() explicitly returns None for the valid HistoryStoreProxy::WithoutIndex state. when a full node is syncing or otherwise running without the history index, a remote peer can send RequestTransactionsProof or RequestTransactionReceiptsByAddress and trigger an Option::unwrap() panic on the request path. This issue has been patched in version 1.3.0.

Risk And Classification

Primary CVSS: v3.1 5.3 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Problem Types: CWE-252 | CWE-252 CWE-252: Unchecked Return Value

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary5.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
3.1CNADECLARED5.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Nimiq Core-rs-albatross affected < 1.3.0 Not specified

References

ReferenceSourceLinkTags
github.com/nimiq/core-rs-albatross/security/advisories/GHSA-xr78-2jhh-9wf9 [email protected] github.com
github.com/nimiq/core-rs-albatross/releases/tag/v1.3.0 [email protected] github.com
github.com/nimiq/core-rs-albatross/commit/0e5c90a6c75b722f3d6091769776a4... [email protected] github.com
github.com/nimiq/core-rs-albatross/pull/3667 [email protected] github.com
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