Answer in brief
CVE-2026-89146 records a High severity (CVSS 8.7) vulnerability in libp2p-rendezvous through 0.17.1 Denial of Service via Unbounded Registration TTL in Discovery Responses. The current sources do not mark it as known exploited. The current feed maps libp2p/libp2p-rendezvous (generic), libp2p/libp2p-rendezvous (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 8.7. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps libp2p/libp2p-rendezvous (generic), libp2p/libp2p-rendezvous (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| libp2p/libp2p-rendezvousgeneric | 0 | Not reported |
| libp2p/libp2p-rendezvousgeneric | >=0 <=0.17.1 | Not reported |
Published upstream
Sep 11, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 24, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Sep 11, 2026
libp2p-rendezvous through 0.17.1 fails to validate registration TTL values in discovery responses, allowing attackers to trigger timer arithmetic overflow. A malicious rendezvous server can send a discovery response with an unbounded TTL value that causes the client node process to panic when computing the expiry timer.
Quoted source text, attributed separately from HOL analysis.