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CVE-2026-33040 libp2p-rust: Gossipsub PRUNE.backoff Duration Overflow

🗓️ 20 Mar 2026 05:46:42Reported by GitHub_MType 
cvelist
 cvelist
🔗 www.cve.org👁 50 Views

CVE-2026-33040: libp2p-rust gossipsub prune backoff overflow triggers remote unauthenticated panic; fixed in 0.49.3.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
attackerkb
attackerkb
CVE-2026-33040
20 Mar 202605:46
–attackerkb
cnnvd
CNNVD
rust-libp2p input validation error vulnerability
20 Mar 202600:00
–cnnvd
cve
CVE
CVE-2026-33040
20 Mar 202605:46
–cve
github
Github Security Blog
Gossipsub PRUNE.backoff Duration Overflow
18 Mar 202619:54
–github
mend
Mend
CVE-2026-33040
20 Mar 202605:46
–mend
nvd
NVD
CVE-2026-33040
20 Mar 202606:16
–nvd
osv_ghsa
osv_ghsa
GHSA-GC42-3JG7-RXR2 Gossipsub PRUNE.backoff Duration Overflow
18 Mar 202619:54
–osv_ghsa
osv_ubuntu
osv_ubuntu
UBUNTU-CVE-2026-33040
20 Mar 202606:16
–osv_ubuntu
ptsecurity
Positive Technologies
PT-2026-26181
18 Mar 202600:00
–ptsecurity
rapid7
Rapid7 Vulnerability Database (full)
CVE-2026-33040: Integer Overflow or Wraparound
20 Mar 202600:00
–rapid7
Rows per page
[
  {
    "vendor": "libp2p",
    "product": "rust-libp2p",
    "versions": [
      {
        "version": "< 0.49.3",
        "status": "affected"
      }
    ]
  }
]

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20 Mar 2026 05:46Current
CVSS 48.7
EPSS0.00563
SSVC
50