GHSA-rch7-f4h5-x9rj

Identity Spoofing in libp2p-secio

9.1 CriticalFix available

GHSA-rch7-f4h5-x9rj is a critical vulnerability (CVSS 9.1) in libp2p-secio, published August 23, 2019. No source lists public exploit code. Fixed in libp2p-secio 0.9.0.

What does this mean?

Severity: 9.1 CriticalCVSS 3.1, GitHub Advisories
Exploit chance: UnscoredNo EPSS score yet
Exploitation: None knownNot on CISA’s or ENISA’s lists
Fixed in: 0.9.0libp2p-secio

Description

Affected versions of libp2p-secio does not correctly verify that the PeerId of DstPeer matches the PeerId discovered in the crypto handshake, resulting in a high severity identity spoofing vulnerability.

Recommendation

Update to version 0.9.0 or later.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: None

Affected packages

Affected packages
Package	Affected	Fixed
`libp2p-secio` npm	before 0.9.0	0.9.0

What each source reports

GitHub Advisories Score used9.1

Identity Spoofing in libp2p-secio

Recommendation

Update to version 0.9.0 or later.

Record: GHSA-rch7-f4h5-x9rj
CVSS 3.1: 9.1 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Weakness: CWE-290
Updated: 2026-11-02

OSV9.1

Identity Spoofing in libp2p-secio

Recommendation

Update to version 0.9.0 or later.

Record: GHSA-rch7-f4h5-x9rj
CVSS 3.1: 9.1 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Weakness: CWE-290
Updated: 2026-11-02

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	GitHub Advisories, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

Description

Recommendation

Attack profile

How easy it is to exploit

What an attacker can affect

Affected packages

What each source reports

Recommendation

Recommendation

History

References