Vulnerability-Lookup

GHSA-GH9C-4324-26CM

Vulnerability from github – Published: 2026-09-11 12:33 – Updated: 2026-09-11 12:33

Details

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.

Severity

7.5 (High)


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

8.7 (High)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Show details on source website

JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2026-89146"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-190"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-11T11:16:57Z",
    "severity": "HIGH"
  },
  "details": "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.",
  "id": "GHSA-gh9c-4324-26cm",
  "modified": "2026-09-11T12:33:25Z",
  "published": "2026-09-11T12:33:25Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-89146"
    },
    {
      "type": "WEB",
      "url": "https://docs.rs/crate/libp2p-rendezvous/0.17.1/source/src/client.rs"
    },
    {
      "type": "WEB",
      "url": "https://gist.github.com/thesmartshadow/25ef03f7ebbd12118a9d27695c885989"
    },
    {
      "type": "WEB",
      "url": "https://github.com/libp2p/rust-libp2p"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/libp2p-rendezvous-through-0.17.1-denial-of-service-via-unbounded-registration-ttl-in-discovery-responses"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

CVE-2026-89146 (GCVE-0-2026-89146)

Vulnerability from cvelistv5 – Published: 2026-09-11 10:46 – Updated: 2026-09-11 18:56

Title

libp2p-rendezvous through 0.17.1 Denial of Service via Unbounded Registration TTL in Discovery Responses

Summary

Severity

7.5 (High)


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

8.7 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

SSVC

Exploitation: poc Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-11 18:56 UTC

CWE

CWE-190 - Integer Overflow or Wraparound
CWE-617 - Reachable Assertion

Assigner

VulnCheck mitre root

References

4 references

URL	Tags
https://gist.github.com/thesmartshadow/25ef03f7eb…	third-party-advisory
https://docs.rs/crate/libp2p-rendezvous/0.17.1/so…	technical-description
https://github.com/libp2p/rust-libp2p	product
https://www.vulncheck.com/advisories/libp2p-rende…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
libp2p	libp2p-rendezvous	Affected: 0 , ≤ 0.17.1 (semver)

Date Public

2026-09-09 00:00

Credits

Ali Firas

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-89146",
                "options": [
                  {
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                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-09-11T18:56:08.559551Z",
                "version": "2.0.3"
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        "providerMetadata": {
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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            "tags": [
              "exploit"
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            "url": "https://gist.github.com/thesmartshadow/25ef03f7ebbd12118a9d27695c885989"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
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          "collectionURL": "https://crates.io",
          "defaultStatus": "unaffected",
          "packageName": "libp2p-rendezvous",
          "packageURL": "pkg:cargo/libp2p-rendezvous",
          "product": "libp2p-rendezvous",
          "repo": "https://github.com/libp2p/rust-libp2p",
          "vendor": "libp2p",
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              "status": "affected",
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      "credits": [
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          "lang": "en",
          "type": "reporter",
          "value": "Ali Firas"
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      "metrics": [
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            "subIntegrityImpact": "NONE",
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    "datePublished": "2026-09-11T10:46:56.275Z",
    "dateReserved": "2026-09-11T01:23:29.845Z",
    "dateUpdated": "2026-09-11T18:56:17.169Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.