CVE-2019-15545
Failure to properly verify ed25519 signatures in libp2p-core
An issue was discovered in the libp2p-core crate before 0.8.1 for Rust. Attackers can spoof ed25519 signatures.
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
- None
- Integrity
- High
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
An issue was discovered in the libp2p-core crate before 0.8.1 for Rust. Attackers can spoof ed25519 signatures.
- Record
CVE-2019-15545- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:P/A:N - Weakness
- CWE-347
- Updated
- 2026-11-02
CVE List No score
An issue was discovered in the libp2p-core crate before 0.8.1 for Rust. Attackers can spoof ed25519 signatures.
- Record
CVE-2019-15545- Updated
- 2026-11-02
EUVDEUVD-2021-1561 No score
An issue was discovered in the libp2p-core crate before 0.8.1 for Rust. Attackers can spoof ed25519 signatures.
- Record
EUVD-2021-1561- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-4q4x-67hx-5mpg
Failure to properly verify ed25519 signatures in libp2p-core
Affected versions of this crate did not properly verify ed25519 signatures. Any signature with a correct length was considered valid. This allows an attacker to impersonate any node identity.
- Record
GHSA-4q4x-67hx-5mpg- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - Weakness
- CWE-347
- Updated
- 2026-11-02
OSV
An issue was discovered in the libp2p-core crate before 0.8.1 for Rust. Attackers can spoof ed25519 signatures.
- Record
CVE-2019-15545- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - Updated
- 2026-11-02
OSVGHSA-4q4x-67hx-5mpg
Failure to properly verify ed25519 signatures in libp2p-core
Affected versions of this crate did not properly verify ed25519 signatures. Any signature with a correct length was considered valid. This allows an attacker to impersonate any node identity.
- Record
GHSA-4q4x-67hx-5mpg- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - Weakness
- CWE-347
- Updated
- 2026-11-02
OSVRUSTSEC-2019-0004
Failure to properly verify ed25519 signatures makes any signature valid
Affected versions of this crate did not properly verify ed25519 signatures. Any signature with a correct length was considered valid.
This allows an attacker to impersonate any node identity.
- Record
RUSTSEC-2019-0004- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
libp2p-corecrates.io |
before 0.8.1 | 0.8.1 |
libp2p-corecrates.io |
0.3.0 up to 0.7.1, 0.8.0-0 up to 0.8.1 | 0.7.10.8.1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2019-15545 is a high vulnerability (CVSS 7.5) in Libp2p, published May 15, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.77%, the 55th percentile. Fixed in libp2p-core 0.8.1.