CVE-2026-77384Disclosure

LOWCVSS 7.5 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

libp2p is a JavaScript implementation of the libp2p networking stack. Prior to version 4.2.9, the reservation refresh path in reservation-store.ts reuses the same retimeableSignal but unconditionally registers another abort listener on every refresh. As a result, a remote peer can repeatedly send valid RESERVE requests for the same reservation, causing unbounded listener and closure growth in @libp2p/circuit-relay-v2 relay servers and leading to denial of service. This issue is fixed in version 4.2.9.

0.0/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-400CWE-772

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Threat summary

  • 1 mentions across 1 observed day

What's happening

  • Technical details provided in 1 signal
  • Disclosure: 1 classified signal
  • 1 total mentions across 1 day

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-08-25: 1Technical Details · 2026-08-25: 108-25
Signal classification1 categories
Disclosure
1100.0%
Referenced assets1 URL
By indicator
Full discourse1 post
  • Vulmon Vulnerability Feed@VulmonFeeds
    Disclosure

    CVE-2026-77384 Denial of Service in libp2p Reservation Refresh Due to Unbounded Listener Growth https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-77384

    Post summary

    The text announces a new CVE (CVE-2026-77384) describing a denial‑of‑service risk in libp2p’s Reservation Refresh due to unbounded listener growth, but provides no PoC, exploit, active‑use, patch, or false‑positive information.

    00000126
    4.1K followersView on X

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