CometBFT's invalid BitArray handling can lead to network halt
CometBFT's invalid BitArray handling can lead to network halt. Name: ASA-2025-003: Invalid BitArray handling can lead to network halt Criticality: High (Considerable Impact; Possible Likelihood per ACMv1.2) Affected versions: <= v0.
Vuln-watch · relayed from the GitHub Advisory Database; see Source & attribution below
Summary
Name: ASA-2025-003: Invalid BitArray handling can lead to network halt Criticality: High (Considerable Impact; Possible Likelihood per ACMv1.2) Affected versions: <= v0.
Affected
- github.com/cometbft/cometbft (go) <= 0.37.15 — fixed in 0.37.16
- github.com/cometbft/cometbft (go) >= 0.38.0-alpha.1, <= 0.38.18 — fixed in 0.38.19
Severity
High (CVSS 8.7), as rated by the upstream advisory.
Recommended actions
- Upgrade github.com/cometbft/cometbft to 0.37.16 or later
- Upgrade github.com/cometbft/cometbft to 0.38.19 or later
Source & attribution
This 0xCERT advisory summarises GHSA-hrhf-2vcr-ghch from the GitHub Advisory Database, credited upstream to whoismxuse: https://github.com/advisories/GHSA-hrhf-2vcr-ghch. Details may change; refer to the original source for the authoritative record.
References
- https://github.com/advisories/GHSA-hrhf-2vcr-ghch
- https://github.com/cometbft/cometbft/security/advisories/GHSA-hrhf-2vcr-ghch
- https://github.com/cometbft/cometbft/commit/be5677c3e58f998b7f67bb6186dd2c9b81a041a1
- https://github.com/cometbft/cometbft/commit/dcb1f265b59477be40804f7ccdc4fb30612d6a4f
- https://github.com/cometbft/cometbft/releases/tag/v0.37.16
- https://github.com/cometbft/cometbft/releases/tag/v0.38.19
OpenPGP-signed. The signed text of this advisory verifies against the 0xCERT key CCC7 D9EC 9415 723D.
Published 2025-10-14 · last updated 2026-10-08
curl -s https://www.0xcert.com/pgp.asc | gpg --import && curl -s https://www.0xcert.com/advisory/0xCERT-2025-0001/signed.txt | gpg --verify