An issue was discovered in the libp2p-deflate crate before 0.27.1 for Rust.
Priority MEDIUM 45CWE-908Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub.
Summary
An issue was discovered in the libp2p-deflate crate before 0.27.1 for Rust. An uninitialized buffer is passed to AsyncRead::poll_read(), which is a user-provided trait function.
Why it matters now
EPSS 0.0123 69th percentileScored 2026-11-07
Fix Fixed libp2p-deflate (crates.io): 0.27.1
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | libp2p-deflate (crates.io) | before 0.27.1 | 0.27.1 | Patch available | GHSA-gvcp-948f-8f2p |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- libp2p-deflate (crates.io) Vendor— Affected before 0.27.1 Fixed in 0.27.1 Patch available GHSA-gvcp-948f-8f2p
Remediation
- Fix · GHSA-gvcp-948f-8f2p libp2p-deflate (crates.io) Fixed in 0.27.1 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2020-36443
- 2026-10-03 Alias added: GHSA-gvcp-948f-8f2p
References
Sources
- CVE-2020-36443 · CVE Program
- CVE-2020-36443 · NVD
- FIRST EPSS
- GHSA-gvcp-948f-8f2p · GitHub Advisory Database · CC BY 4.0
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