VulnSocial

CVE-2026-35405Disclosure(protocol / libp2p)

LOWCVSS 7.5 · HIGH

Signal is active with 2 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-rust is the official rust language Implementation of the libp2p networking stack. Prior to 0.17.1, libp2p-rendezvous server has no limit on how many namespaces a single peer can register. A malicious peer can just keep registering unique namespaces in a loop and the server happily accepts every single one allocating memory for each registration with no pushback. Keep doing this long enough (or with multiple sybil peers) and the server process gets OOM killed. This vulnerability is fixed in 0.17.1.

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0.0/ 10 priority

Sources & remediation

Exploit / PoC references
Weakness type (CWE)
CWE-770

Priority

LOW

Exploitation

NONE

PoC

YES

Patch

NONE

Momentum

STABLE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • libp2p

Threat summary

  • 3 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • Technical details provided in 3 signals
  • Disclosure: 3 classified signals
  • Peaked at 2 mentions on most recent observed day (2026-04-07)
  • 3 total mentions across 2 days

Affected systems

Vendors
protocol
Products
libp2p

Deep dive

Activity timeline3 mentions / 2d
01122Mentions · 2026-04-05: 1Mentions · 2026-04-07: 2Technical Details · 2026-04-05: 1Technical Details · 2026-04-07: 204-0504-07
Signal classification1 categories
Disclosure
3100.0%
Referenced assets3 URLs
Classification over time
DateTotalLabels
2026-04-051
Disclosure1
2026-04-072
Disclosure2
Full discourse3 posts
  • Infoflowcloud@infoflowcloud
    Disclosure

    🚨*CVE* CVE-2026-35405 libp2p-rust is the official rust language Implementation of the libp2p networking stack. Prior to 0.17.1, libp2p-rendezvous server has no limit on how many namespaces… https://www.cve.org/CVERecord?id=CVE-2026-35405 ----- Traducción: CVE-2026-35405 lib… http://infoflow.cloud`

    Post summary

    The post announces CVE‑2026‑35405, noting that earlier libp2p‑rendezvous releases had an unbounded namespace limit, but it offers no PoC, exploit code, or active attack evidence.

    0000043
    67 followersView on X
  • CVE@CVEnew
    Disclosure

    CVE-2026-35405 libp2p-rust is the official rust language Implementation of the libp2p networking stack. Prior to 0.17.1, libp2p-rendezvous server has no limit on how many namespaces… https://www.cve.org/CVERecord?id=CVE-2026-35405

    Post summary

    The post discloses a CVE affecting libp2p-rust where versions before 0.17.1 lack a namespace limit, but it does not provide exploit code, active exploitation evidence, or patch details.

    00000210
    57.0K followersView on X
  • PulsePatch.io@pulsepatchio
    Disclosure

    The `libp2p-rendezvous` library has an OOM DoS vulnerability (CVE-2026-35405) due to unlimited namespace registrations, affecting `rendezvous` servers. #libp2p #DoS #infosec https://www.pulsepatch.io/posts/cve-2026-35405-libp2p-rendezvous-oom-dos

    Post summary

    The text announces a denial‑of‑service vulnerability (CVE‑2026‑35405) in libp2p‑rendezvous caused by unlimited namespace registrations, leading to an OOM condition on rendezvous servers.

    0000047
    4 followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
Appprotocollibp2p-rust-

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