An issue was discovered in the marc crate before 2.0.0 for Rust.
Priority LOW 36CWE-908Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-908 and the CVSS impact.
Summary
An issue was discovered in the marc crate before 2.0.0 for Rust. A user-provided Read implementation can gain access to the old contents of newly allocated memory, violating soundness.
Why it matters now
EPSS 0.01516 74th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed marc (crates.io): 2.0.0
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 |
| — | marc (crates.io) | before 2.0.0 | 2.0.0 | Patch available | GHSA-3mf3-2gv9-h39j |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- marc (crates.io) Vendor— Affected before 2.0.0 Fixed in 2.0.0 Patch available GHSA-3mf3-2gv9-h39j
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:marc_project:marc:*:*:*:*:*:rust:*:* | before 2.0.0 | Vulnerable | Marc Project |
- cpe:2.3:a:marc_project:marc:*:*:*:*:*:rust:*:* Versions before 2.0.0 Vulnerable ·Marc Project
Remediation
- Fix · GHSA-3mf3-2gv9-h39j marc (crates.io) Fixed in 2.0.0 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2021-26308
- 2026-10-03 Alias added: GHSA-3mf3-2gv9-h39j
References
Sources
- CVE-2021-26308 · CVE Program
- CVE-2021-26308 · NVD
- FIRST EPSS
- GHSA-3mf3-2gv9-h39j · GitHub Advisory Database · CC BY 4.0
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